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Komatsu WA470-6 WA4800-6 Wheel Loader Service Repair Manual – PDF Download
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- Komatsu WA470-6 WA4800-6 Wheel Loader Service Repair Manual
- SERIAL NUMBERS:
WA470-6 A46001 and up
WA480-6 A48001 and up
- PUBLICATION NUMBER:CEBM023002
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Description
Komatsu WA470-6 WA4800-6 Wheel Loader Service Repair Manual
Screenshot of the Manual:
KOMATSU WA470-6 WA4800-6 WHEEL LOADER SERVICE REPAIR MANUAL – PDF DOWNLOAD:
Description:
Komatsu WA470-6 WA4800-6 Wheel Loader Service Repair Manual
- This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
- This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following sections. These sections are further divided into each main group of components.
- GENERAL
This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts. - STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. In addition, this section gives the judgement standards when inspecting disassembled parts. - STANDARD VALUE TABLE
This section explains the standard values for new machine and judgement criteria for testing, adjusting and
troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting. - TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. - TROUBLESHOOTING
Troubleshooting charts correlating “Problems” to “Causes” are also included in this section. - DISASSEMBLY AND ASSEMBLY
This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations. - DIAGRAMS AND SCHEMATICS
This section has the foldout drawings for the machine
Table of Contents:
Komatsu WA470-6 WA4800-6 Wheel Loader Service Repair Manual
CEBM023002 - WA470-6, WA480-6....................................................................................................... 1 CONTENTS........................................................................................................................ 2 REVISED PAGES .................................................................................................................. 3 SAFETY.......................................................................................................................... 19 SAFETY NOTICE............................................................................................................... 19 IMPORTANT SAFETY NOTICE................................................................................................. 19 GENERAL PRECAUTIONS..................................................................................................... 19 PREPARATIONS FOR WORK................................................................................................... 19 PRECAUTIONS DURING WORK................................................................................................. 19 GENERAL......................................................................................................................... 21 HOW TO READ THE SHOP MANUAL..................................................................................................... 22 VOLUMES..................................................................................................................... 22 DISTRIBUTION AND UPDATING................................................................................................... 22 FILING METHOD............................................................................................................... 22 REVISED EDITION MARK........................................................................................................ 22 REVISIONS................................................................................................................... 22 SYMBOLS..................................................................................................................... 22 HOISTING INSTRUCTIONS........................................................................................................... 23 HOISTING.................................................................................................................... 23 WIRE ROPES.................................................................................................................. 23 MAINTENANCE STANDARD TERMINOLOGY................................................................................................ 24 HANDLING ELECTRIC EQUIPMENT AND HYDRAULIC COMPONENTS............................................................................ 26 Handling Connectors Used for Engines........................................................................................ 35 Slide Lock Type......................................................................................................... 35 Pull Lock Type.......................................................................................................... 35 Push Lock Type.......................................................................................................... 36 Turn-housing Type (Round Green Connector)............................................................................... 38 PRECAUTIONS FOR OPERATIONS...................................................................................................... 39 Precautions when Carrying Out Removal Work.................................................................................. 39 Precautions when Carrying Out Installation Work............................................................................. 40 Precautions when Completing the Operation................................................................................... 41 PUSH PULL COUPLER............................................................................................................... 42 TYPE 1...................................................................................................................... 42 DISCONNECTION........................................................................................................... 42 CONNECTION.............................................................................................................. 42 TYPE 2...................................................................................................................... 43 DISCONNECTION........................................................................................................... 43 CONNECTION.............................................................................................................. 43 TYPE 3...................................................................................................................... 44 DISCONNECTION........................................................................................................... 44 CONNECTION.............................................................................................................. 44 COATING MATERIALS............................................................................................................... 45 STANDARD TIGHTENING TORQUE...................................................................................................... 47 STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS................................................................................ 47 TIGHTENING TORQUE OF HOSE NUTS.............................................................................................. 48 TIGHTENING TORQUE OF SPLIT FLANGE BOLTS..................................................................................... 48 TIGHTENING TORQUE FOR FLARED NUTS........................................................................................... 48 TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PIPING JOINTS................................................................... 49 TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PLUGS........................................................................... 49 TIGHTENING TORQUE TABLE FOR HOSES (TAPER SEAL TYPE AND FACE SEAL TYPE)...................................................... 49 ELECTRIC WIRE CODE.............................................................................................................. 50 CLASSIFICATION BY THICKNESS................................................................................................. 50 CLASSIFICATION BY COLOR AND CODE............................................................................................ 50 CONVERSION TABLES............................................................................................................... 51 METHOD OF USING THE CONVERSION TABLE........................................................................................ 51 LIST OF ABBREVIATIONS........................................................................................................... 57 List of Abbreviations Used in the Shop Manual............................................................................... 57 List of Abbreviations Used in the Circuit Diagrams.......................................................................... 61 01 GENERAL ......................................................................................................................... 63 SPECIFICATIONS.................................................................................................................. 64 Dimension Drawing........................................................................................................... 64 Specification Tables........................................................................................................ 66 WEIGHT TABLE.................................................................................................................... 70 TABLE OF FUEL, COOLANT AND LUBRICANTS........................................................................................... 72 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD .................................................................................... 75 ENGINE AND COOLING SYSTEM....................................................................................................... 80 Engine and Transmission Mounting............................................................................................ 80 Cooling System.............................................................................................................. 82 Cooling Fan Pump............................................................................................................ 84 Operation............................................................................................................... 88 Servo Valve............................................................................................................. 89 Cooling Fan Motor........................................................................................................... 92 Hydraulic Motor............................................................................................................. 94 Suction Valve........................................................................................................... 95 Operation of Reversible Valve........................................................................................... 96 Safety Valve............................................................................................................ 97 POWER TRAIN..................................................................................................................... 0 System Diagram.............................................................................................................. 0 Drive Shaft................................................................................................................. 0 Power Train Piping Diagram.................................................................................................. 0 Torque Converter............................................................................................................ 0 Transmission................................................................................................................ 0 Transmission control valve.................................................................................................. 0 Left valve assembly..................................................................................................... 0 Right valve assembly.................................................................................................... 0 ECMV........................................................................................................................ 0 MAIN AND TORQUE CONVERTER RELIEF VALVES......................................................................................... 0 AXLE............................................................................................................................ 0 Front axle.................................................................................................................. 0 WA470-6................................................................................................................. 0 WA480-6................................................................................................................. 0 Rear axle................................................................................................................... 0 WA470-6................................................................................................................. 0 WA480-6................................................................................................................. 0 DIFFERENTIAL.................................................................................................................... 0 Front Differential.......................................................................................................... 0 Rear Differential........................................................................................................... 0 LIMITED SLIP DIFFERENTIAL....................................................................................................... 0 FINAL DRIVE..................................................................................................................... 0 STEERING SYSTEM................................................................................................................. 0 Steering System Layout Drawing.............................................................................................. 0 Steering Column............................................................................................................. 0 Steering Pump............................................................................................................... 0 Pump Unit............................................................................................................... 0 Steering Valve.............................................................................................................. 0 Orbit-roll Valve............................................................................................................ 0 Stop Valve.................................................................................................................. 0 Steering Relief Valve....................................................................................................... 0 Steering Cylinder........................................................................................................... 0 Emergency steering motor.................................................................................................... 0 Emergency Steering Pump..................................................................................................... 0 Joystick Steering Lever Linkage............................................................................................. 0 Electrical Steering Lever................................................................................................... 0 Joystick EPC Valve.......................................................................................................... 0 BRAKE SYSTEM.................................................................................................................... 0 Brake Component Layout Drawing.............................................................................................. 0 Charge Valve................................................................................................................ 0 Brake Valve................................................................................................................. 0 Accumulator (for brake)..................................................................................................... 0 Slack Adjuster.............................................................................................................. 0 Brake....................................................................................................................... 0 Front Brake............................................................................................................. 0 Rear Brake.............................................................................................................. 0 Parking Brake Control....................................................................................................... 0 Parking Brake............................................................................................................... 0 Parking Brake Solenoid Valve................................................................................................ 0 Emergency Parking Brake Release Valve....................................................................................... 0 UNDERCARRIAGE AND FRAME......................................................................................................... 0 Axle Mount and Center Hinge Pin............................................................................................. 0 Tires....................................................................................................................... 0 HYDRAULIC SYSTEM................................................................................................................ 0 Hydraulic Component Layout Drawing.......................................................................................... 0 Work Equipment Control Lever Linkage........................................................................................ 0 Multi-Function Mono-lever Type.......................................................................................... 0 Hydraulic Tank.............................................................................................................. 0 Breather................................................................................................................ 0 Power Train Pump............................................................................................................ 0 Work Equipment Pump......................................................................................................... 0 Sectional View.......................................................................................................... 0 LS Valve................................................................................................................ 0 PC Valve................................................................................................................ 0 PC-EPC Valve............................................................................................................ 0 Work Equipment Control Valve................................................................................................ 0 CLSS........................................................................................................................ 0 Basic principle......................................................................................................... 0 Function and Operation of Each Valve........................................................................................ 0 Pressure Compensation Valve (Installed to cylinder head side of lift arm valve)......................................... 0 Shuttle valve in the pressure compensation valve........................................................................ 0 Supply of LS Pressure................................................................................................... 0 LS Bypass Plug.......................................................................................................... 0 ECSS Control Valve...................................................................................................... 0 Accumulator Charge Valve.................................................................................................... 0 PPC Valve................................................................................................................... 0 Work Equipment PPC Valve................................................................................................ 0 Service PPC Valve (If equipped)......................................................................................... 0 Accumulator (for PPC circuit)............................................................................................... 0 Accumulator (for power train circuit)....................................................................................... 0 Accumulator (for ECSS) (If equipped)........................................................................................ 0 Work Equipment PPC Cut-off Solenoid Valve (If equipped)..................................................................... 0 WORK EQUIPMENT.................................................................................................................. 0 Work Equipment Linkage...................................................................................................... 0 Bucket Positioner And Boom Kick-out......................................................................................... 0 Work Equipment Cylinder..................................................................................................... 0 Lift Cylinder........................................................................................................... 0 Bucket Cylinder......................................................................................................... 0 CAB AND ITS ATTACHMENTS......................................................................................................... 0 Cab......................................................................................................................... 0 Air Conditioner............................................................................................................. 0 Air Conditioner Piping Diagram.......................................................................................... 0 Refrigerant Circuit Diagram............................................................................................. 0 Air Conditioner Unit.................................................................................................... 0 Blower and Intake Unit.................................................................................................. 0 Compressor.............................................................................................................. 0 Condenser............................................................................................................... 0 Receiver................................................................................................................ 0 Air conditioner panel................................................................................................... 0 ELECTRICAL SYSTEM............................................................................................................... 0 Machine Monitor System...................................................................................................... 0 System Circuit Diagram.................................................................................................. 0 Machine Monitor............................................................................................................. 0 Transmission Controller System.............................................................................................. 0 Transmission Controller Gear Shifting Control Function.................................................................. 0 System Circuit Diagram.................................................................................................. 0 Transmission Controller..................................................................................................... 0 Work Equipment Controller System............................................................................................ 0 System Circuit Diagram.................................................................................................. 0 Work Equipment Controller............................................................................................... 0 Electric Transmission Control............................................................................................... 0 Combination Switch...................................................................................................... 0 Kickdown Switch and Hold Switch............................................................................................. 0 Load Meter Cancel Switch and Load Meter Subtotal Switch................................................................. 0 Multi-function Knob......................................................................................................... 0 Joystick Steering Knob...................................................................................................... 0 KOMTRAX System.............................................................................................................. 0 KOMTRAX Terminal........................................................................................................ 0 Engine Starting Circuit..................................................................................................... 0 Engine Stopping Circuit..................................................................................................... 0 Preheating Circuit.......................................................................................................... 0 Engine Power Mode Selector Circuit.......................................................................................... 0 Engine Output Derating Function............................................................................................. 0 Automatic Warm-up Function.................................................................................................. 0 Parking Brake Circuit....................................................................................................... 0 Sensor...................................................................................................................... 0 Transmission Input Speed Sensor......................................................................................... 0 Transmission Output Speed Sensor........................................................................................ 0 Cooling Fan Speed Sensor................................................................................................ 0 Torque Converter Oil Temperature Sensor................................................................................. 0 Hydraulic Oil Temperature Sensor........................................................................................ 0 Transmission Oil Temperature Sensor..................................................................................... 0 Brake Oil Temperature Sensor............................................................................................ 0 Work Equipment Pump Oil Pressure Sensor................................................................................. 0 Steering Pump Oil Pressure Sensor....................................................................................... 0 Lift Cylinder Head Oil Pressure Sensor (machines equipped with load meter).............................................. 0 Lift Cylinder Bottom Oil Pressure Sensor (machines equipped with load meter)............................................ 0 Transmission Cut-off Oil Pressure Sensor................................................................................ 0 Coolant Level Sensor.................................................................................................... 0 Fuel Level Sensor....................................................................................................... 0 Air Cleaner Clogging Sensor (machine equipped with KOMTRAX)............................................................. 0 Accelerator Pedal Sensor................................................................................................ 0 Boom Kick-out Proximity Switch.......................................................................................... 0 Bucket Positioner Proximity Switch...................................................................................... 0 Lift Arm Potentiometer (machines equipped with load meter).............................................................. 0 20 STANDARD VALUE TABLES ........................................................................................................... 455 STANDARD SERVICE VALUE TABLE.................................................................................................... 456 Standard Service Value Table for Engine..................................................................................... 456 Standard Value Table For Chassis............................................................................................ 457 Machine Posture and Procedure for Performance Measurement................................................................... 464 30 TESTING AND ADJUSTING............................................................................................................ 467 TOOLS........................................................................................................................... 471 Tools For Testing, Adjusting, And Troubleshooting........................................................................... 471 ENGINE COMPONENTS............................................................................................................... 477 Engine Speed................................................................................................................ 477 Exhaust Gas Color........................................................................................................... 480 Exhaust Temperature......................................................................................................... 482 Valve Clearance............................................................................................................. 485 Compression Pressure........................................................................................................ 487 Blow-by Pressure............................................................................................................ 489 Engine Oil Pressure......................................................................................................... 490 EGR Valve Drive Pressure.................................................................................................... 491 Intake Air (Boost) Pressure................................................................................................. 493 FUEL SYSTEM..................................................................................................................... 495 Handling Fuel System Equipment.............................................................................................. 495 Releasing Residual Pressure In Fuel System.................................................................................. 495 Fuel Pressure............................................................................................................... 496 Fuel Return and Leak Amount................................................................................................. 498 Bleeding Air From Fuel Circuit.............................................................................................. 501 Fuel Circuit for Leakage.................................................................................................... 503 Reduced Cylinder Mode Operation............................................................................................. 504 No Injection Cranking Operation............................................................................................. 504 Handling of Controller Voltage Circuit...................................................................................... 504 EXHAUST SYSTEM AND PIPING....................................................................................................... 505 Check Muffler and Muffler Stack for Looseness and Damage.................................................................... 505 Check Muffler Function...................................................................................................... 505 Check Installed Condition of Cylinder Head and Manifolds.................................................................... 505 Check Engine Piping for Damage and Looseness................................................................................ 505 BELTS........................................................................................................................... 506 Air Conditioner Compressor Belt............................................................................................. 506 Testing................................................................................................................. 506 Adjusting............................................................................................................... 506 Adjusting Alternator Belt................................................................................................... 507 Testing................................................................................................................. 507 Adjusting............................................................................................................... 507 TRANSMISSION SPEED SENSOR....................................................................................................... 508 DIRECTIONAL LEVER............................................................................................................... 509 Adjusting Directional Lever Length.......................................................................................... 509 Adjusting Gear Shift Lever Length........................................................................................... 509 FNR AND GEAR SHIFT LEVERS....................................................................................................... 510 Testing FNR Lever and Gear Shift Lever...................................................................................... 510 POWER TRAIN OIL PRESSURE........................................................................................................ 511 Testing and Adjusting Power Train Oil Pressure.............................................................................. 511 Measurement............................................................................................................. 514 Adjustment.............................................................................................................. 525 FLUSHING TRANSMISSION SYSTEM.................................................................................................... 526 Torque Converter and Transmission Hydraulic Circuit......................................................................... 526 TRANSMISSION VALVE FAILS........................................................................................................ 528 Moving Machine When Transmission Valve Is Broken............................................................................ 528 AXLE DRIVE AND DRIVE SHAFTS..................................................................................................... 531 Check Axle Final Drive for Oil Leakage...................................................................................... 531 Check Drive Shafts for Looseness, Play and Damage........................................................................... 531 STEERING SYSTEM................................................................................................................. 532 Steering Stop Valve......................................................................................................... 532 Testing................................................................................................................. 532 Adjusting............................................................................................................... 532 Steering Wheel.............................................................................................................. 534 Steering Oil Pressure....................................................................................................... 536 Adjusting............................................................................................................... 538 Bleeding Air From Steering Circuit.......................................................................................... 539 HYDRAULIC FAN................................................................................................................... 540 Hydraulic Drive Fan......................................................................................................... 540 Testing................................................................................................................. 540 Hydraulic Fan Speed Sensor.................................................................................................. 542 Adjustment.............................................................................................................. 542 Bleeding Air From Hydraulic Drive Fan Circuit............................................................................... 544 BRAKE SYSTEM.................................................................................................................... 546 Brake Pedal................................................................................................................. 546 Testing................................................................................................................. 546 Brake Pedal Linkage......................................................................................................... 547 Testing................................................................................................................. 547 Adjusting............................................................................................................... 547 Brake Performance........................................................................................................... 548 Testing................................................................................................................. 548 Accumulator Charge Pressure................................................................................................. 549 Testing................................................................................................................. 549 Adjusting............................................................................................................... 550 Wheel Brake Oil Pressure.................................................................................................... 551 Testing................................................................................................................. 551 Check Wear of Wheel Brake Disc.............................................................................................. 554 Bleed Air From Wheel Brake Circuit.......................................................................................... 555 Release Residual Pressure in Brake Accumulator Circuit...................................................................... 556 Parking Brake Performance................................................................................................... 556 Test.................................................................................................................... 556 Parking Brake Oil Pressure.................................................................................................. 557 Testing................................................................................................................. 557 Wear Of Parking Brake Disc.................................................................................................. 559 Testing................................................................................................................. 559 Manual Release for Parking Brake............................................................................................ 561 WORK EQUIPMENT.................................................................................................................. 562 Work Equipment Control Lever................................................................................................ 562 Testing................................................................................................................. 562 Work Equipment PPC Oil Pressure............................................................................................. 563 Measuring............................................................................................................... 563 Adjusting............................................................................................................... 566 Work Equipment Oil Pressure................................................................................................. 567 Testing................................................................................................................. 567 Adjusting............................................................................................................... 571 Bleeding Air From Work Equipment Circuit.................................................................................... 572 Releasing Residual Pressure in Work Equipment Circuit....................................................................... 573 ACCUMULATOR..................................................................................................................... 575 Nitrogen Gas Accumulator Pressure of ECSS................................................................................... 575 Testing................................................................................................................. 576 Charging Accumulator.................................................................................................... 578 Brake Accumulator Nitrogen Gas Pressure..................................................................................... 582 Testing................................................................................................................. 583 Charging Accumulator.................................................................................................... 585 BUCKET POSITIONER............................................................................................................... 589 Testing..................................................................................................................... 589 Adjusting................................................................................................................... 589 BOOM KICK-OUT................................................................................................................... 591 Testing..................................................................................................................... 591 Adjusting................................................................................................................... 591 PROXIMITY SWITCH OPERATION PILOT LAMP........................................................................................... 592 ELECTRICAL SYSTEM............................................................................................................... 593 Diode Testing Procedure..................................................................................................... 593 Electrical System Troubleshooting........................................................................................... 595 Preparation............................................................................................................. 595 KOMTRAX SYSTEM.................................................................................................................. 600 How to Start KOMTRAX Terminal Operations.................................................................................... 600 Station Opening Check in Machine Side................................................................................... 601 Application for the Start of Use........................................................................................ 604 Indicator Lamps of KOMTRAX Terminal......................................................................................... 605 MACHINE MONITOR SYSTEM.......................................................................................................... 608 Adjusting Replaced, Reassembled or Added Sensor, Controller, etc. With Machine Monitor...................................... 608 Special Functions of Machine Monitor (EMMS)................................................................................. 611 Normal functions and special functions of machine monitor............................................................... 611 Functions and Flow of the Service Mode...................................................................................... 612 Operator Mode............................................................................................................... 615 Service Meter/Clock Display Function (1)................................................................................ 615 Load Meter Function (if equipped) (2)................................................................................... 615 Odometer Display Function (3)........................................................................................... 615 Maintenance Monitoring Function (4)..................................................................................... 615 Telephone Number Input Function (5)..................................................................................... 616 Language Selection Function (6)......................................................................................... 616 Monitor Brightness Adjustment Function (7).............................................................................. 616 Time Adjustment Function (8)............................................................................................ 617 Travel Speed/Engine Speed Display Selecting Function (9)................................................................ 617 Travel Speed/Engine Speed Display/Non-Display Selecting Function (10)................................................... 617 Action Code Display Function (11)....................................................................................... 617 Failure Code Display Function (12)...................................................................................... 618 Service Mode................................................................................................................ 619 Procedure For Switching To Service Mode And Screen Display (1).......................................................... 619 Electrical System Fault History Display Function (ELECTRIC FAULT) (2)................................................... 621 Mechanical System Fault History Display Function (MACHINE FAULT) (3).................................................... 623 Real-Time Monitoring Function (REAL-TIME MONITOR) (4)................................................................... 624 Engine Cylinder Cutout Function (CYLINDER CUT- OUT) (5)................................................................. 646 No Injection Cranking Function (6)...................................................................................... 647 Adjustment Function (TUNING) (7)........................................................................................ 648 Maintenance Monitoring Function (8)..................................................................................... 667 Operating Information Display Function (9).............................................................................. 673 OPTIONAL SELECT Function (10)........................................................................................... 675 Machine Serial Number Input Function (11)............................................................................... 0 Machine Model Select Function (MACHINE) (12)............................................................................ 0 Initialize Function (13)................................................................................................ 0 PM-CLINIC INSPECTION TABLE...................................................................................................... 0 WA470-6 S/N A46001 and up................................................................................................... 0 WA480-6 S/N A48001 and up................................................................................................... 0 40 TROUBLESHOOTING ................................................................................................................. 679 FAILURE CODE TABLE.............................................................................................................. 695 Fuse Locations.............................................................................................................. 707 Locations and Numbers of Fuse Boxes and Slow Blow Fuse...................................................................... 709 POINTS TO REMEMBER WHEN TROUBLESHOOTING......................................................................................... 710 SEQUENCE OF EVENTS IN TROUBLESHOOTING........................................................................................... 712 Testing Before Troubleshooting.............................................................................................. 713 CLASSIFICATION AND TROUBLESHOOTING PROCEDURES................................................................................... 714 MODE CHART...................................................................................................................... 715 Information Contained in Troubleshooting Table.............................................................................. 718 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS...................................................................................... 720 X-Type Connectors........................................................................................................... 720 SWP-Type Connectors......................................................................................................... 722 M-Type Connectors........................................................................................................... 724 S-Type Connectors........................................................................................................... 726 MIC-Type Connectors......................................................................................................... 728 AMP040-Type Connectors...................................................................................................... 730 AMP070-Type Connectors...................................................................................................... 732 AMP Connector............................................................................................................... 734 L-Type Connector............................................................................................................ 734 PA-Type Connector........................................................................................................... 735 Bendix (MS) Connector....................................................................................................... 735 KES1 (Automobile) Connectors................................................................................................ 736 F-Type Connector............................................................................................................ 737 HD30 Series Connectors...................................................................................................... 739 DT Series Connectors........................................................................................................ 745 DTM Series Connectors....................................................................................................... 747 DTHD Series Connectors...................................................................................................... 747 DTP Series Connectors....................................................................................................... 748 DRC26 Series Connectors..................................................................................................... 749 DRC12, 16 Series Connectors................................................................................................. 751 AMP Connectors for Pump Controller (CH700).................................................................................. 752 BOSCH Connectors for Engine................................................................................................. 753 SUMITOMO Connectors for Engine.............................................................................................. 754 CANNON Connector for Engine................................................................................................. 755 AMP Connectors for Engine................................................................................................... 756 FRAMATOME Connectors for Engine............................................................................................. 757 PACKARD Connectors for Engine............................................................................................... 759 DT Series Connectors for Engine............................................................................................. 760 T-BRANCH BOX and T-BRANCH ADAPTER TABLE......................................................................................... 761 FAILURE CODES................................................................................................................... 766 1500L0.......................................................................................................................... 767 TORQFLOW Transmission: Double Meshing....................................................................................... 767 15SAL1.......................................................................................................................... 768 ECMV F Clutch: When Command Current is OFF, Fill Signal is ON............................................................... 768 15SALH.......................................................................................................................... 770 ECMV F Clutch: When Command Current is ON, Fill Signal is OFF............................................................... 770 15SBL1.......................................................................................................................... 772 ECMV R Clutch: When Command Current is OFF, Fill Signal is ON............................................................... 772 15SBLH.......................................................................................................................... 774 ECMV R Clutch: When Command Current is ON, Fill Signal is OFF............................................................... 774 15SEL1.......................................................................................................................... 776 ECMV 1st Clutch: When Command Current is OFF, Fill Signal is ON............................................................. 776 15SELH.......................................................................................................................... 778 ECMV 1st Clutch: When Command Current is ON, Fill Signal is OFF............................................................. 778 15SFL1.......................................................................................................................... 780 ECMV 2nd Clutch: When Command Current is OFF, FIll Signal is ON............................................................. 780 15SFLH.......................................................................................................................... 782 ECMV 2nd Clutch: When Command Current is ON, Fill Signal is OFF............................................................. 782 15SGL1.......................................................................................................................... 784 ECMV 3rd Clutch: When Command Current is OFF, Fill Signal is ON............................................................. 784 15GLH........................................................................................................................... 786 ECMV 3rd Clutch: When Command Current is ON, Fill Signal is OFF............................................................. 786 15SHL1.......................................................................................................................... 788 ECMV 4th Clutch: When Command Current is OFF, Fill Signal is ON............................................................. 788 15SHLH.......................................................................................................................... 790 ECMV 4th Clutch: When Command Current is ON, Fill Signal is OFF............................................................. 790 2F00MA.......................................................................................................................... 792 Parking Brake: Malfunction.................................................................................................. 792 2G43ZG.......................................................................................................................... 794 Accumulator: Low Oil Pressure............................................................................................... 794 44K0L4.......................................................................................................................... 796 Bucket Positioner: ON/OFF Signals Disagree.................................................................................. 796 AA1ANX.......................................................................................................................... 800 Air Cleaner: Clogging....................................................................................................... 800 AB00L6.......................................................................................................................... 802 Alternator: Signal Disagrees with Operating State of Engine................................................................. 802 AB00MA.......................................................................................................................... 804 Alternator: Malfunction..................................................................................................... 804 B@BAZG.......................................................................................................................... 806 Engine: Rotation Derating by Low Engine Oil Pressure........................................................................ 806 B@BAZK.......................................................................................................................... 808 Engine Oil: Low Level....................................................................................................... 808 B@BCNS.......................................................................................................................... 810 Coolant: Overheating........................................................................................................ 810 B@BCZK.......................................................................................................................... 812 Engine Coolant: Low Level................................................................................................... 812 B@C7NS.......................................................................................................................... 814 Brake Oil: Overheating...................................................................................................... 814 b@CENS.......................................................................................................................... 816 Torque Converter Oil: Overheating........................................................................................... 816 B@CENS.......................................................................................................................... 818 Torque Converter Oil: Overheating........................................................................................... 818 B@HANS.......................................................................................................................... 820 Hydraulic Oil: Overheating.................................................................................................. 820 CA111........................................................................................................................... 822 Abnormality in Engine Controller............................................................................................ 822 CA115........................................................................................................................... 825 Engine Ne or Bkup Speed Sensor Error........................................................................................ 825 CA122........................................................................................................................... 826 Charge Pressure Sensor High Error........................................................................................... 826 CA123........................................................................................................................... 828 Charge Pressure Sensor Low Error............................................................................................ 828 CA131........................................................................................................................... 830 Throttle Sensor High Error.................................................................................................. 830 CA132........................................................................................................................... 832 Throttle Sensor Low Error................................................................................................... 832 CA135........................................................................................................................... 834 Engine Oil Pressure Sensor High Error....................................................................................... 834 CA141........................................................................................................................... 836 Engine Oil Pressure Sensor Low Error........................................................................................ 836 CA144........................................................................................................................... 838 Coolant Sensor High Error................................................................................................... 838 CA145........................................................................................................................... 840 Coolant Temperature Sensor Low Error........................................................................................ 840 CA153........................................................................................................................... 842 Charge Temperature Sensor High Error........................................................................................ 842 CA154........................................................................................................................... 844 Charge Temperature Sensor Low Error......................................................................................... 844 CA187........................................................................................................................... 846 Sensor Power Supply 2 Low Error............................................................................................. 846 CA221........................................................................................................................... 848 Atmospheric Pressure Sensor High Error...................................................................................... 848 CA222........................................................................................................................... 850 Atmospheric Pressure Sensor Low Error....................................................................................... 850 CA227........................................................................................................................... 851 Sensor Power Supply 2 High Error............................................................................................ 851 CA234........................................................................................................................... 854 Engine Overspeed............................................................................................................ 854 CA238........................................................................................................................... 856 NE Speed Sensor Power Supply Error.......................................................................................... 856 CA263........................................................................................................................... 858 Fuel Temperature Sensor High Error.......................................................................................... 858 CA265........................................................................................................................... 860 Fuel Temperature Sensor Low Error........................................................................................... 860 CA271........................................................................................................................... 862 PCV1 Short Circuit.......................................................................................................... 862 CA272........................................................................................................................... 864 PCV1 Disconnection.......................................................................................................... 864 CA273........................................................................................................................... 866 PCV2 Short Circuit.......................................................................................................... 866 CA274........................................................................................................................... 868 PCV2 Disconnection.......................................................................................................... 868 CA322........................................................................................................................... 870 Injector #1 Open/Short Error................................................................................................ 870 CA323........................................................................................................................... 872 Injector #5 Open/Short Error................................................................................................ 872 CA324........................................................................................................................... 874 Injector #3 Open/Short Error................................................................................................ 874 CA325........................................................................................................................... 876 Injector #6 Open/Short Error................................................................................................ 876 CA331........................................................................................................................... 878 Injector #2 Open/Short Error................................................................................................ 878 CA332........................................................................................................................... 880 Injector #4 Open/Short Error................................................................................................ 880 CA342........................................................................................................................... 882 Calibration Code Inconsistency.............................................................................................. 882 CA351........................................................................................................................... 884 Injectors Drive Circuit Error............................................................................................... 884 CA352........................................................................................................................... 886 Sensor Power Supply 1 Low Error............................................................................................. 886 CA386........................................................................................................................... 888 Sensor Power Supply 1 High Error............................................................................................ 888 CA431........................................................................................................................... 890 Idle Validation Switch Error................................................................................................ 890 CA432........................................................................................................................... 892 Idle Validation Action Error................................................................................................ 892 CA441........................................................................................................................... 894 Battery Voltage Low Error................................................................................................... 894 CA442........................................................................................................................... 898 Battery Voltage High Error.................................................................................................. 898 CA449........................................................................................................................... 900 Common Rail Pressure High Error 2........................................................................................... 900 CA451........................................................................................................................... 902 Common Rail Pressure Sensor High Error...................................................................................... 902 CA452........................................................................................................................... 904 Common Rail Pressure Sensor Low Error....................................................................................... 904 CA553........................................................................................................................... 905 Common Rail Pressure High Error 1........................................................................................... 905 CA554........................................................................................................................... 906 Common Rail Pressure Sensor In-Range Error.................................................................................. 906 CA559........................................................................................................................... 907 Supply Pump Pressure Very Low Error......................................................................................... 907 CA689........................................................................................................................... 914 Engine Ne Speed Sensor Error................................................................................................ 914 CA731........................................................................................................................... 916 Engine Bkup Speed Sensor Phase Error........................................................................................ 916 CA757........................................................................................................................... 917 All Continuous Data Lost Error.............................................................................................. 917 CA778........................................................................................................................... 918 Engine Bkup Speed Sensor Error.............................................................................................. 918 CA1228.......................................................................................................................... 920 EGR Valve Servo Error 1..................................................................................................... 920 CA1625.......................................................................................................................... 921 EGR Valve Servo Error 2..................................................................................................... 921 CA1633.......................................................................................................................... 922 KOMNET Datalink Timeout Error............................................................................................... 922 CA2185.......................................................................................................................... 924 Throttle Sensor Supply Voltage High Error................................................................................... 924 CA2186.......................................................................................................................... 926 Throttle Sensor Power Supply Low Error...................................................................................... 926 CA2249.......................................................................................................................... 928 Supply Pump Pressure Very Low Error 2....................................................................................... 928 CA2271.......................................................................................................................... 930 EGR Valve Lift Sensor High Error............................................................................................ 930 CA2272.......................................................................................................................... 932 EGR Valve Lift Sensor Low Error............................................................................................. 932 CA2351.......................................................................................................................... 934 EGR Valve Solenoid Operation Short Circuit.................................................................................. 934 CA2352.......................................................................................................................... 936 EGR Valve Solenoid Operation Disconnect..................................................................................... 936 CA2555.......................................................................................................................... 938 Intake Heater Relay Disconnection Error..................................................................................... 938 CA2556.......................................................................................................................... 940 Intake Heater Relay Short Circuit Error..................................................................................... 940 D150KA.......................................................................................................................... 942 Emergency Steering Relay: Disconnection..................................................................................... 942 D150KB.......................................................................................................................... 944 Emergency Steering Relay: Short Circuit..................................................................................... 944 D150KY.......................................................................................................................... 946 Emergency Steering Relay: Short Circuit With Power Supply Line.............................................................. 946 D160KA.......................................................................................................................... 948 Backup Lamp Relay Output: Disconnection..................................................................................... 948 D160KB.......................................................................................................................... 950 Backup Lamp Relay Output: Short Circuit..................................................................................... 950 D191KA.......................................................................................................................... 952 Joystick Steering Neutral Safety Relay: Disconnection....................................................................... 952 D191KB.......................................................................................................................... 954 Joystick Steering Neutral Safety Relay: Short Circuit....................................................................... 954 D191KY.......................................................................................................................... 956 Joystick Steering Neutral Safety Relay: Short Circuit With Power Supply Line................................................ 956 D192KA.......................................................................................................................... 958 ECSS Solenoid: Disconnection................................................................................................ 958 D192KB.......................................................................................................................... 960 ECSS Solenoid: Short Circuit................................................................................................ 960 D192KY.......................................................................................................................... 962 ECSS Solenoid: Short Circuit With Power Supply Line......................................................................... 962 D193KA.......................................................................................................................... 964 Joystick Steering Solenoid Cut-Off Relay: Disconnection..................................................................... 964 D193KB.......................................................................................................................... 966 Joystick steering solenoid cut-off relay: Short circuit..................................................................... 966 D193KY.......................................................................................................................... 968 Joystick Steering Solenoid Cut-Off Relay: Short Circuit With Power Supply Line.............................................. 968 D5ZHKA.......................................................................................................................... 970 Terminal C Signal: Disconnection............................................................................................ 970 D5ZHKB.......................................................................................................................... 974 Terminal C Signal: Short Circuit............................................................................................ 974 D5ZHKZ.......................................................................................................................... 978 Terminal C Signal: Disconnection Or Short Circuit........................................................................... 978 D5ZHL6.......................................................................................................................... 982 Terminal C Signal: Signal Does Not Match Engine Running Or Stopped State.................................................... 982 DA80L4.......................................................................................................................... 986 Auto Grease Controller: ON/OFF Signals Disagree............................................................................. 986 DAF3KK.......................................................................................................................... 988 Machine Monitor: Low Source Voltage (Input)................................................................................. 988 DAF5KP.......................................................................................................................... 990 Machine Monitor: Low Output Voltage......................................................................................... 990 DAFRKR.......................................................................................................................... 994 CAN Communication With Machine Monitor: Defective Communication (Abnormality In Target Component System).................... 994 DAQ0KK.......................................................................................................................... 996 Transmission Controller: Low Source Voltage................................................................................. 996 DAQ0KT.......................................................................................................................... 998 Transmission Controller: Abnormality In Controller.......................................................................... 998 DAQ1KA.......................................................................................................................... 999 Terminal ACC Input: Disconnection........................................................................................... 999 DAQ2KK..........................................................................................................................1002 Transmission Controller Load Power Supply Line: Low Source Voltage (Input)..................................................1002 DAQ9KQ..........................................................................................................................1004 Transmission Controller Model Selection: Disagreement of Model Selection Signals............................................1004 DAQRKR..........................................................................................................................1005 CAN Communication with Transmission Controller: Defective Communication (Abnormality in Target Component System)............1005 DAQRMA..........................................................................................................................1010 Transmission Controller Option Setting: Malfunction.........................................................................1010 DB2RKR..........................................................................................................................1011 CAN Communication with Engine Controller: Defective Communication (Abnormality in Target Component System)..................1011 DB90KK..........................................................................................................................1018 Work Equipment Controller: Low Source Voltage (Input).......................................................................1018 DB90KT..........................................................................................................................1020 Work Equipment Controller: Abnormality in Controller........................................................................1020 DB92KK..........................................................................................................................1022 Work Equipment Controller Load Power Supply Line: Low Source Voltage (Input)................................................1022 DB95KX..........................................................................................................................1024 Work Equipment Controller Power Supply Output: Out of Input Signal Range....................................................1024 DB99KQ..........................................................................................................................1026 Work Equipment Controller Model Selection: Disagreement in Model Selection Signals..........................................1026 DB9RKR..........................................................................................................................1027 CAN Communication With Work Equipment Controller: Defective Communication (Abnormality in Target Component System)..........1027 DB9RMA..........................................................................................................................1031 Work equipment controller option setting: Malfunction.......................................................................1031 DB9RMC..........................................................................................................................1032 CAN Communication With Transmission Controller, Engine Controller and Machine Monitor: Defective Operation..................1032 DD15LD..........................................................................................................................1034 n Switch (Panel Switch 1): Switch Is Kept Pressed For Long Time.............................................................1034 DD16LD..........................................................................................................................1036 Ø Switch (Panel Switch 2): Switch is Kept Pressed for Long Time.............................................................1036 DD17LD..........................................................................................................................1038 < Switch (Panel Switch 3): Switch Is Kept Pressed For Long Time.............................................................1038 DD18LD..........................................................................................................................1040 > Switch (Panel Switch 4): Switch Is Kept Pressed For Long Time.............................................................1040 DD1ALD..........................................................................................................................1042 Remote Positioner Raise/lower Set Switch (Raise): Switch Is Kept Pressed For Long Time......................................1042 DD1BLD..........................................................................................................................1044 Remote Positioner Raise/lower Set Switch (Lower): Switch Is Kept Pressed For Long Time......................................1044 DD1CLD..........................................................................................................................1046 Load Meter Subtotal Switch: Switch Is Kept Pressed For Long Time............................................................1046 DD1FLD..........................................................................................................................1048 Load Meter Mode Selector Switch (A/B): Switch Is Kept Pressed For Long Time.................................................1048 DD1GLD..........................................................................................................................1050 Load Meter Mode Selector Switch (+/-): Switch Is Kept Pressed For Long Time.................................................1050 DD1HLD..........................................................................................................................1052 Load Meter Display Selector Switch: Switch Is Kept Pressed For Long Time....................................................1052 DD1NLD..........................................................................................................................1054 Fan Reverse Switch: Switch Is Kept Pressed For Long Time....................................................................1054 DD1NL4..........................................................................................................................1056 Fan Automatic Reverse Switch: Switch Is Kept Pressed For Long Time..........................................................1056 DDB6L4..........................................................................................................................1058 Parking Brake Switch (Neutralizer): ON/OFF Signals Disagree.................................................................1058 DDD1LD..........................................................................................................................1062 Remote Positioner Bucket Angle Set Switch: Switch Is Kept Pressed For Long Time.............................................1062 DDE5MA..........................................................................................................................1064 Emergency Steering Drive Switch: Malfunction................................................................................1064 DDK3KA..........................................................................................................................1066 Right FNR Switch: Disconnection.............................................................................................1066 DDK4KA..........................................................................................................................1069 Joystick Steering FNR Switch: Disconnection.................................................................................1069 DDK5L4..........................................................................................................................1072 Joystick Steering Shift-Up/Down Switch: ON/OFF Signals Disagree.............................................................1072 DDK6KA..........................................................................................................................1074 FNR Lever Switch: Disconnection.............................................................................................1074 DDK6KB..........................................................................................................................1078 FNR Lever Switch: Short Circuit.............................................................................................1078 DDS5KA..........................................................................................................................1080 Steering Pressure Switch Signal: Disconnected...............................................................................1080 DDS5KB..........................................................................................................................1082 Steering pressure Switch Signal: Short Circuit..............................................................................1082 DDS5L6..........................................................................................................................1084 Steering: Low Oil Pressure..................................................................................................1084 DDT0L4..........................................................................................................................1086 Shift Mode Selector Switch: ON/OFF Signals Disagree.........................................................................1086 DDT4LD..........................................................................................................................1088 Transmission Cut-Off Set Switch: Switch Is Kept Pressed For Long Time.......................................................1088 DDW9LD..........................................................................................................................1090 Kick-Down Switch: Switch Is Kept Pressed For Long Time......................................................................1090 DDWLLD..........................................................................................................................1092 Hold Switch: Switch Is Kept Pressed For Long Time...........................................................................1092 DDY0LD..........................................................................................................................1094 Load Meter Cancel Switch: Switch Is Kept Pressed For Long Time..............................................................1094 DF10KA..........................................................................................................................1096 Transmission Shift Lever Switch: Disconnected...............................................................................1096 DF10KB..........................................................................................................................1100 Transmission Shift Lever Switch: Short Circuit..............................................................................1100 DGF1KA..........................................................................................................................1102 Transmission Oil Temperature Sensor: Disconnected...........................................................................1102 DGF1KB..........................................................................................................................1104 Transmission Oil Temperature Sensor: Short Circuit..........................................................................1104 DGH2KX..........................................................................................................................1106 Hydraulic Oil Temperature Sensor: Out Of Input Signal Range.................................................................1106 DGR2KA..........................................................................................................................1108 Rear Brake Oil Temperature Sensor: Disconnected.............................................................................1108 DGR2KX..........................................................................................................................1110 Rear Brake Oil Temperature Sensor: Out Of Input Signal Range................................................................1110 DGT1KX..........................................................................................................................1112 Torque Converter Oil Temperature Sensor: Out Of Input Signal Range..........................................................1112 DH21KA..........................................................................................................................1114 Loader Pump Pressure Sensor: Disconnection..................................................................................1114 DH21KB..........................................................................................................................1116 Loader Pump Pressure Sensor: Power Supply Line Short........................................................................1116 DHPCKX..........................................................................................................................1118 Lift Arm Cylinder Bottom Pressure Sensor: Out Of Input Signal Range.........................................................1118 DHPDKX..........................................................................................................................1120 Lift Arm Cylinder Head Pressure Sensor: Out Of Input Signal Range...........................................................1120 DHT1KX..........................................................................................................................1122 Transmission Cut-Off Pressure Sensor: Out Of Input Signal Range.............................................................1122 DHT8KA..........................................................................................................................1124 Steering Pump Pressure Sensor: Disconnection................................................................................1124 DHT8KB..........................................................................................................................1126 Steering Pump Pressure Sensor: Short Circuit................................................................................1126 DK59KA..........................................................................................................................1128 Lift Arm EPC Lever Potentiometer (Main): Disconnection......................................................................1128 DK59KY..........................................................................................................................1131 Lift Arm EPC Lever Potentiometer (Main): Short Circuit With Power Supply Line...............................................1131 DK59L8..........................................................................................................................1134 Lift Arm EPC Lever Potentiometer (Main): Analog Signals Disagree............................................................1134 DK5AKA..........................................................................................................................1137 Lift Arm EPC Lever Potentiometer (Sub): Disconnection.......................................................................1137 DK5AKY..........................................................................................................................1140 Lift Arm EPC Lever Potentiometer (Sub): Short Circuit With Power Supply Line................................................1140 DK5BKA..........................................................................................................................1143 Bucket EPC Lever Potentiometer (Main): Disconnection........................................................................1143 DK5BKY..........................................................................................................................1146 Bucket EPC Lever Potentiometer (Main): Short Circuit With Power Supply Line.................................................1146 DK5BL8..........................................................................................................................1149 Bucket EPC Lever Potentiometer (Main): Analog Signals Disagree..............................................................1149 DK5CKA..........................................................................................................................1152 Bucket EPC Lever Potentiometer (Sub): Disconnection.........................................................................1152 DK5CKY..........................................................................................................................1155 Bucket EPC Lever Potentiometer (Sub): Short Circuit With Power Supply Line..................................................1155 DK5FKA..........................................................................................................................1158 Joystick Steering EPC Lever Potentiometer (Main): Disconnection.............................................................1158 DK5FKY..........................................................................................................................1162 Joystick Steering EPC Lever Potentiometer (Main): Short Circuit With Power Supply Line......................................1162 DK5GKA..........................................................................................................................1164 Joystick Steering EPC Lever Potentiometer (Sub): Disconnection..............................................................1164 DK5GKY..........................................................................................................................1167 Joystick Steering EPC Lever Potentiometer (Sub): Short Circuit With Power Supply Line.......................................1167 DK5FL8..........................................................................................................................1169 Joystick Steering EPC Lever Potentiometer (Main): Analog Signals Disagree...................................................1169 DKA0KA..........................................................................................................................1172 Lift Arm Angle Sensor: Disconnection........................................................................................1172 DKA0KY..........................................................................................................................1174 Lift Arm Angle Sensor: Short Circuit With Power Supply Line.................................................................1174 DKA0L0..........................................................................................................................1176 Lift Arm Angle Sensor: Double Meshing.......................................................................................1176 DLF1KA..........................................................................................................................1178 Transmission Input Speed Sensor: Disconnection..............................................................................1178 DLF1LC..........................................................................................................................1180 Transmission Input Speed Sensor: Short Circuit..............................................................................1180 DLM3KA..........................................................................................................................1182 Fan Speed Sensor: Disconnection.............................................................................................1182 DLM3LC..........................................................................................................................1184 Fan Speed Sensor: Short Circuit.............................................................................................1184 DLT3KA..........................................................................................................................1186 Transmission Output Speed Sensor: Disconnection.............................................................................1186 DLT3LC..........................................................................................................................1188 Transmission Output Speed Sensor: Out Of Input Signal Range.................................................................1188 DT20KB..........................................................................................................................1190 Transmission Cut-Off Indicator Lamp: Short Circuit..........................................................................1190 DUM1KB..........................................................................................................................1192 Remote Positioner Raise Set Indicator Lamp: Short Circuit...................................................................1192 DUM2KB..........................................................................................................................1194 Remote Positioner Lower Set Indicator Lamp: Short Circuit...................................................................1194 DV00KB..........................................................................................................................1196 Alarm Buzzer: Short Circuit.................................................................................................1196 DW4PKA..........................................................................................................................1198 Lift Arm Raise EPC Solenoid: Disconnection..................................................................................1198 DW4PKB..........................................................................................................................1200 Lift Arm Raise EPC Solenoid: Short Circuit..................................................................................1200 DW4PKY..........................................................................................................................1202 Lift Arm Raise EPC Solenoid: Short Circuit With Power Supply Line...........................................................1202 DW4QKA..........................................................................................................................1204 Lift Arm Lower EPC Solenoid: Disconnection..................................................................................1204 DW4QKB..........................................................................................................................1206 Lift Arm Lower EPC Solenoid: Short Circuit..................................................................................1206 DW4QKY..........................................................................................................................1208 Lift Arm Lower EPC Solenoid: Short Circuit With Power Supply Line...........................................................1208 DW4RKA..........................................................................................................................1210 Bucket Tilt EPC Solenoid: Disconnection.....................................................................................1210 DW4RKB..........................................................................................................................1212 Bucket Tilt EPC Solenoid: Short Circuit.....................................................................................1212 DW4RKY..........................................................................................................................1214 Bucket Tilt EPC Solenoid: Short Circuit With Power Supply Line..............................................................1214 DW4SKA..........................................................................................................................1216 Bucket Dump EPC Solenoid: Disconnection.....................................................................................1216 DW4SKB..........................................................................................................................1218 Bucket Dump EPC Solenoid: Short Circuit.....................................................................................1218 DW4SKY..........................................................................................................................1220 Bucket Dump EPC Solenoid: Short Circuit With Power Supply Line..............................................................1220 DW7BKA..........................................................................................................................1222 Fan Reverse Solenoid: Disconnection.........................................................................................1222 DW7BKB..........................................................................................................................1224 Fan Reverse Solenoid: Short Circuit.........................................................................................1224 DW7BKY..........................................................................................................................1226 Fan Reverse Solenoid: Short Circuit With Power Supply Line..................................................................1226 DWM1KA..........................................................................................................................1228 Work Equipment Neutral Lock Solenoid: Disconnection.........................................................................1228 DWM1KB..........................................................................................................................1230 Work Equipment Neutral Lock Solenoid: Short Circuit.........................................................................1230 DWM1KY..........................................................................................................................1232 Work Equipment Neutral Lock Solenoid: Short Circuit With Power Supply Line..................................................1232 DWN6KA..........................................................................................................................1234 Lift Arm Raise Magnet Detent Solenoid: Disconnection........................................................................1234 DWN6KB..........................................................................................................................1236 Lift Arm Raise Magnet Detent Solenoid: Short Circuit........................................................................1236 DWN6KY..........................................................................................................................1238 Lift Arm Raise Magnet Detent Solenoid: Short Circuit With Power Supply Line.................................................1238 DWN7KA..........................................................................................................................1240 Lift Arm Float Magnet Detent Solenoid: Disconnection........................................................................1240 DWN7KB..........................................................................................................................1242 Lift Arm Float Magnet Detent Solenoid: Short Circuit........................................................................1242 DWN7KY..........................................................................................................................1244 Lift Arm Float Magnet Detent Solenoid: Short Circuit With Power Supply Line.................................................1244 DWN8KA..........................................................................................................................1246 Bucket Tilt Magnet Detent Solenoid: Disconnection...........................................................................1246 DWN8KB..........................................................................................................................1248 Bucket Tilt Magnet Detent Solenoid: Short Circuit...........................................................................1248 DWN8KY..........................................................................................................................1250 Bucket Tilt Magnet Detent Solenoid: Shorted With The Power Source...........................................................1250 DX16KA..........................................................................................................................1252 Fan Pump EPC Solenoid: Disconnection........................................................................................1252 DX16KB..........................................................................................................................1254 Fan Pump EPC Solenoid: Short Circuit........................................................................................1254 DX16KY..........................................................................................................................1256 Fan Pump EPC Solenoid: Short Circuit With Power Supply Line.................................................................1256 DXA1KA..........................................................................................................................1258 Loader Pump PC-EPC Solenoid: Disconnection..................................................................................1258 DXA1KB..........................................................................................................................1260 Loader Pump PC-EPC Solenoid: Short Circuit..................................................................................1260 DXANKA..........................................................................................................................1262 Steering Pump PC-EPC Solenoid: Disconnection................................................................................1262 DXANKB..........................................................................................................................1264 Steering Pump PC-EPC Solenoid: Short Circuit................................................................................1264 DXH1KA..........................................................................................................................1266 Lockup ECMV Solenoid: Disconnection.........................................................................................1266 DXH1KB..........................................................................................................................1268 Lockup ECMV Solenoid: Short Circuit.........................................................................................1268 DXH1KY..........................................................................................................................1270 Lockup ECMV Solenoid: Short Circuit With Power Supply Line..................................................................1270 DXH4KA..........................................................................................................................1272 1st Clutch ECMV Solenoid: Disconnection.....................................................................................1272 DXH4KB..........................................................................................................................1274 1st Clutch ECMV Solenoid: Short Circuit.....................................................................................1274 DXH4KY..........................................................................................................................1276 1st Clutch ECMV Solenoid: Short Circuit With Power Supply Line..............................................................1276 DXH5KA..........................................................................................................................1278 2nd Clutch ECMV Solenoid: Disconnection.....................................................................................1278 DXH5KB..........................................................................................................................1280 2nd Clutch ECMV Solenoid: Short Circuit.....................................................................................1280 DXH5KY..........................................................................................................................1282 2nd Clutch ECMV Solenoid: Short Circuit With Power Supply Line..............................................................1282 DXH6KA..........................................................................................................................1284 3rd Clutch ECMV Solenoid: Disconnection.....................................................................................1284 DXH6KB..........................................................................................................................1286 3rd Clutch ECMV Solenoid: Short Circuit.....................................................................................1286 DXH6KY..........................................................................................................................1288 3rd Clutch ECMV Solenoid: Short Circuit With Power Supply Line..............................................................1288 DXH7KA..........................................................................................................................1290 R Clutch ECMV Solenoid: Disconnection.......................................................................................1290 DXH7KB..........................................................................................................................1292 R Clutch ECMV Solenoid: Short Circuit.......................................................................................1292 DXH7KY..........................................................................................................................1294 R Clutch ECMV Solenoid: Short Circuit With Power Supply Line................................................................1294 DXH8KA..........................................................................................................................1296 F Clutch ECMV Solenoid: Disconnection.......................................................................................1296 DXH8KB..........................................................................................................................1298 F Clutch ECMV Solenoid: Short Circuit.......................................................................................1298 DXH8KY..........................................................................................................................1300 F Clutch ECMV Solenoid: Short Circuit With Power Supply Line................................................................1300 DXHHKA..........................................................................................................................1302 4th Clutch ECMV Solenoid: Disconnection.....................................................................................1302 DXHHKB..........................................................................................................................1304 4th Clutch ECMV Solenoid: Short Circuit.....................................................................................1304 DXHHKY..........................................................................................................................1306 4th Clutch ECMV Solenoid: Short Circuit With Power Supply Line..............................................................1306 DXHLKA..........................................................................................................................1308 Joystick Steering Right EPC Solenoid: Disconnection.........................................................................1308 DXHLKB..........................................................................................................................1310 Joystick Steering Right EPC Solenoid: Short Circuit.........................................................................1310 DXHLKY1.........................................................................................................................1312 Joystick Steering Right EPC Solenoid: Short Circuit With Power Supply Line..................................................1312 DXHMKA..........................................................................................................................1314 Joystick Steering Left EPC Solenoid: Disconnection..........................................................................1314 DXHMKB..........................................................................................................................1316 Joystick Steering Left EPC Solenoid: Short Circuit..........................................................................1316 DXHMKY..........................................................................................................................1318 Joystick Steering Left EPC Solenoid: Short Circuit With Power Supply Line...................................................1318 DY30MA..........................................................................................................................1320 Motor-Driven Emergency Steering Pump Failure (During Operation Of Machine)..................................................1320 DY30MC..........................................................................................................................1323 Motor-Driven Emergency Steering Pump Failure (Malfunction In Manual Mode)...................................................1323 DY30ME..........................................................................................................................1326 Emergency Steering: Operating For More Than 1 Minute........................................................................1326 E-1.............................................................................................................................1329 Engine Does Not Start.......................................................................................................1329 E-2.............................................................................................................................1336 Wiper does not operate......................................................................................................1336 E-3.............................................................................................................................1340 Windshield Washer Does Not Operate..........................................................................................1340 E-4.............................................................................................................................1343 Headlamp, Clearance Lamp, Tail Lamp, And License Lamp Do Not Light Up Or Go Off.............................................1343 E-5.............................................................................................................................1351 Working Lamp Does Not Light Up Or Go Off....................................................................................1351 E-6.............................................................................................................................1356 Turn Signal Lamp And Hazard Lamp Do Not Light Up Or Go Off..................................................................1356 E-7.............................................................................................................................1362 Brake Lamp Does Not Light Or It Keeps Lighting Up...........................................................................1362 E-8.............................................................................................................................1364 Backup Lamp Does Not Light Or It Keeps Lighting Up..........................................................................1364 E-9.............................................................................................................................1366 Backup Buzzer Does Not Sound Or It Keeps Sounding...........................................................................1366 E-10............................................................................................................................1368 Horn Does Not Sound Or It Keeps Sounding....................................................................................1368 E-11............................................................................................................................1370 Alarm Buzzer Does Not Sound Or It Keeps Sounding............................................................................1370 E-12............................................................................................................................1372 Air Conditioner Does Not Operate Or Stops...................................................................................1372 E-13............................................................................................................................1376 The KOMTRAX System Does Not Work Properly...................................................................................1376 E-14............................................................................................................................1378 When Kick-down Switch Is Turned ON, Kick-down Operation Does Not Start......................................................1378 E-15............................................................................................................................1380 When Hold Switch Is Pressed, Holding Operation Does Not Start...............................................................1380 E-16............................................................................................................................1382 Transmission Is Kept In Neutral, Or Brake Drags When Directional Lever Is Operated While Parking Brake Is Applied...........1382 E-17............................................................................................................................1384 Transmission Cut-off Mode Cannot Be Set Or Reset............................................................................1384 E-18............................................................................................................................1386 Transmission Cut-off Set Cannot Be Reset....................................................................................1386 E-19............................................................................................................................1388 FNR Switch Mode Cannot Be Set Or Reset......................................................................................1388 E-20............................................................................................................................1390 Fan Reverse Function Cannot Be Used Or Reset................................................................................1390 E-21............................................................................................................................1392 Discharge From Loader Pump Does Not Rise From Minimum Level.................................................................1392 E-22............................................................................................................................1394 ECSS Function Cannot Be Used Or Reset.......................................................................................1394 E-23............................................................................................................................1396 When Parking Brake Is Turned ON, Parking Brake Indicator Lamp Does Not Light Up.............................................1396 E-24............................................................................................................................1400 When Emergency Brake Operates, Brake Oil Pressure Caution Lamp Does Not Operate.............................................1400 E-25............................................................................................................................1402 Air Cleaner Clogging Indicator Lamp Does Not Light Up.......................................................................1402 E-26............................................................................................................................1404 Radiator Coolant Level Caution Lamp Does Not Light Up.......................................................................1404 E-27............................................................................................................................1405 Hydraulic Oil Temperature Gauge Does Not Rise And Hydraulic Oil Temperature Caution Lamp Does Not Light Up..................1405 E-28............................................................................................................................1406 Torque Converter Oil Temperature Gauge Does Not Rise And Torque Converter Oil Temperature Caution Lamp Does Not Light Up....1406 E-29............................................................................................................................1408 Steering Oil Pressure Caution Lamp Does Not Light Up........................................................................1408 E-30............................................................................................................................1410 Abnormality In n Switch (Panel Switch 1) Input..............................................................................1410 E-31............................................................................................................................1412 Abnormality In ‡ Switch (Panel Switch 1) Input..............................................................................1412 E-32............................................................................................................................1414 Abnormality In < Switch (Panel Switch 2) Input..............................................................................1414 E-33............................................................................................................................1416 Abnormality In > Switch (Panel Switch 2) Input..............................................................................1416 H-MODE HYDRAULIC AND MECHANICAL SYSTEM..........................................................................................1418 Method Of Using Troubleshooting Chart.......................................................................................1418 Table Of Failure And Causes.................................................................................................1420 H-1.............................................................................................................................1424 The Machine Does Not Start..................................................................................................1424 H-2.............................................................................................................................1426 Torque Converter Lockup Is Not Switched Off (Engine Stalls) [Machine With Lockup Clutch (If Equipped)]......................1426 H-3.............................................................................................................................1427 Torque Converter Lockup Is Not Switched On [Machine With Lockup Clutch (If Equipped)].......................................1427 H-4.............................................................................................................................1428 The Travel Speed Is Slow, The Thrusting Force Is Weak, The Uphill Traveling Power Is Weak, And The Gear Is Not Shifted......1428 H-5.............................................................................................................................1430 Shocks Are Large At The Times Of Starting And Shifting Gear.................................................................1430 H-6.............................................................................................................................1432 Time Lag Is Large At The Times Of Starting And Shifting Gear................................................................1432 H-7.............................................................................................................................1434 The Torque Converter Oil Temperature Is High................................................................................1434 H-8.............................................................................................................................1435 Steering Does Not Turn......................................................................................................1435 H-9.............................................................................................................................1436 Steering Does Not Turn [Machine With Joystick Steering (If Equipped)].......................................................1436 H-10............................................................................................................................1437 Steering Response Is Poor...................................................................................................1437 H-11............................................................................................................................1438 Turning, Response Of Steering Is Poor [Machine With Joystick Steering (If Equipped)]........................................1438 H-12............................................................................................................................1439 Steering Is Heavy...........................................................................................................1439 H-13............................................................................................................................1440 When Machine Turns, It Shakes Or Makes Large Shocks.........................................................................1440 H-14............................................................................................................................1441 When Machine Turns, It Shakes Or Makes Large Shocks [Machine With Joystick Steering (If Equipped)]..........................1441 H-15............................................................................................................................1442 The Wheel Brake Does Not Work Or Does Not Work Well.........................................................................1442 H-16............................................................................................................................1443 The Wheel Brake Is Not Released Or It Drags.................................................................................1443 H-17............................................................................................................................1444 The Parking Brake Does Not Work Or Does Not Work Well.......................................................................1444 H-18............................................................................................................................1445 The Parking Brake Is Not Released Or It Drags (Including Emergency Release System)..........................................1445 H-19............................................................................................................................1446 Lift Arm Does Not Rise......................................................................................................1446 H-20............................................................................................................................1447 LIft Arm Speed Is Low Or Rising Force Of Lift Arm Is Insufficient...........................................................1447 H-21............................................................................................................................1448 When Rising, The Lift Arm Comes To Move Slowly At Specific Height...........................................................1448 H-22............................................................................................................................1448 The Lift Arm Cylinder Cannot Hold Down The Bucket (Bucket Floats)...........................................................1448 H-23............................................................................................................................1448 Hydraulic Drift Of The Lift Arm Is Large....................................................................................1448 H-24............................................................................................................................1448 The Lift Arm Wobbles During Operation.......................................................................................1448 H-25............................................................................................................................1449 Bucket Does Not Tilt Back...................................................................................................1449 H-26............................................................................................................................1450 Bucket Speed Is Low Or Tilting Back Force Is Insufficient...................................................................1450 H-27............................................................................................................................1451 The Bucket Comes To Operate Slowly In The Midst Of Tilting-back.............................................................1451 H-28............................................................................................................................1451 The Bucket Cylinder Cannot Hold Down The Bucket.............................................................................1451 H-29............................................................................................................................1451 Hydraulic Drift Of The Bucket Is Large......................................................................................1451 H-30............................................................................................................................1451 The Bucket Wobbles During Travel With Cargo (The Work Equipment Valve Is Set To “Hold”).....................................1451 H-31............................................................................................................................1452 Lift Arm And Bucket Control Levers Do Not Move Smoothly And Are Heavy.......................................................1452 H-32............................................................................................................................1453 During Operation Of The Machine, Engine Speed Lowers Remarkably Or Engine Stalls............................................1453 H-33............................................................................................................................1453 Large Shock Is Made When Work Equipment Starts And Stops....................................................................1453 H-34............................................................................................................................1453 When Work Equipment Circuit Is Relieved Singly, Other Work Equipment Moves..................................................1453 H-35............................................................................................................................1454 ECSS Does Not Operate, And Pitching, Bouncing Occur.........................................................................1454 COMMUNICATION FAILURE WITH TC300/TC301 KOMTRAX..................................................................................1455 Introduction................................................................................................................1455 Using This Checklist Method.............................................................................................1455 Checklist...............................................................................................................1455 50 DISASSEMBLY AND ASSEMBLY ........................................................................................................1459 HOW TO READ THIS MANUAL.........................................................................................................1463 Removal And Installation Of Assemblies......................................................................................1463 Special Tools...........................................................................................................1463 Removal.................................................................................................................1463 Installation............................................................................................................1463 Disassembly And Assembly Of Assemblies......................................................................................1464 Special Tools...........................................................................................................1464 Disassembly.............................................................................................................1464 Assembly................................................................................................................1465 SPECIAL TOOLS LIST..............................................................................................................1466 Sketches of special tools...................................................................................................1471 CONNECTOR REPAIR PROCEDURES.....................................................................................................1493 Stripping Insulation........................................................................................................1493 Wire Inspection.............................................................................................................1493 Contact Terminal Removal (HD30 Type)........................................................................................1494 Crimping Contact Terminal (HD30 Type).......................................................................................1495 Insertion Of Contact Terminal (HD30 Type)...................................................................................1496 Contact Terminal Removal (DT Type)..........................................................................................1497 Crimping Contact Terminal (DT Type).........................................................................................1498 Insertion Of Contact Terminal (DT Type).....................................................................................1499 ENGINE AND COOLING SYSTEM.......................................................................................................1500 Engine......................................................................................................................1500 Removal.................................................................................................................1500 Installation............................................................................................................1504 Engine Hood.................................................................................................................1505 Removal.................................................................................................................1505 Installation............................................................................................................1507 Radiator....................................................................................................................1508 Removal.................................................................................................................1508 Installation............................................................................................................1511 Aftercooler.................................................................................................................1512 Removal.................................................................................................................1512 Installation............................................................................................................1514 Oil Cooler..................................................................................................................1515 Removal.................................................................................................................1515 Installation............................................................................................................1516 Cooling Fan And Drive Motor.................................................................................................1517 Removal.................................................................................................................1517 Installation............................................................................................................1521 Fuel Supply Pump............................................................................................................1522 Removal.................................................................................................................1522 Installation............................................................................................................1526 Fuel Injector...............................................................................................................1531 Removal.................................................................................................................1531 Installation............................................................................................................1534 Cylinder Head...............................................................................................................1539 Removal.................................................................................................................1539 Installation............................................................................................................1545 Engine Front Oil Seal.......................................................................................................1548 Removal.................................................................................................................1548 Installation............................................................................................................1549 Engine Rear Oil Seal........................................................................................................1550 Removal.................................................................................................................1550 Installation............................................................................................................1551 Fuel Tank...................................................................................................................1555 Removal.................................................................................................................1555 Installation............................................................................................................1558 POWER TRAIN.....................................................................................................................1559 Torque Converter And Transmission...........................................................................................1559 Removal.................................................................................................................1559 Installation............................................................................................................1565 Disassembly.............................................................................................................1566 Assembly................................................................................................................1585 Torque Converter (Standard Specification)...................................................................................1610 Disassembly.............................................................................................................1610 Assembly................................................................................................................1613 Torque Converter (Lockup Specification).....................................................................................1616 Disassembly.............................................................................................................1616 Assembly................................................................................................................1620 Clutch Pack.................................................................................................................1626 Disassembly.............................................................................................................1626 Assembly................................................................................................................1643 Front Axle..................................................................................................................1662 Removal.................................................................................................................1662 Installation............................................................................................................1664 Rear Axle...................................................................................................................1665 Removal.................................................................................................................1665 Installation............................................................................................................1671 Axle Housing................................................................................................................1673 Disassembly.............................................................................................................1673 Assembly................................................................................................................1678 Differential................................................................................................................1685 Disassembly.............................................................................................................1686 Assembly................................................................................................................1694 BRAKE SYSTEM....................................................................................................................1709 Parking Brake Disc And Plate................................................................................................1709 Removal.................................................................................................................1709 Installation............................................................................................................1712 UNDERCARRIAGE AND FRAME.........................................................................................................1713 Center Hinge Pin............................................................................................................1713 Removal.................................................................................................................1713 Installation............................................................................................................1718 Counterweight...............................................................................................................1723 Removal.................................................................................................................1723 Installation............................................................................................................1725 HYDRAULIC SYSTEM................................................................................................................1726 Steering Demand Valve.......................................................................................................1726 Removal.................................................................................................................1726 Installation............................................................................................................1729 Work Equipment Valve........................................................................................................1730 Removal.................................................................................................................1730 Installation............................................................................................................1733 Brake Charge Valve..........................................................................................................1734 Removal.................................................................................................................1734 Installation............................................................................................................1734 Hydraulic Tank..............................................................................................................1735 Removal.................................................................................................................1735 Installation............................................................................................................1737 Steering And Power Train Pump...............................................................................................1738 Removal.................................................................................................................1738 Installation............................................................................................................1738 Work Equipment and Cooling Fan Pump.........................................................................................1739 Removal.................................................................................................................1739 Installation............................................................................................................1740 Hydraulic Cylinder..........................................................................................................1741 Disassembly.............................................................................................................1742 Assembly................................................................................................................1745 WORK EQUIPMENT..................................................................................................................1751 Removal.....................................................................................................................1751 Installation................................................................................................................1754 CAB AND ITS ATTACHMENTS.........................................................................................................1756 Operator's Cab And Floor Frame..............................................................................................1756 Removal.................................................................................................................1756 Installation............................................................................................................1761 Operator's Cab Glass (Stuck Glass)..........................................................................................1762 Removal.................................................................................................................1762 Installation............................................................................................................1764 Operator's Seat.............................................................................................................1772 Disassembly.............................................................................................................1772 Assembly................................................................................................................1779 Manufactured By GRAMMER (Seat)..............................................................................................1784 Upper Seat..............................................................................................................1784 Suspension..............................................................................................................1792 Air Conditioner Unit........................................................................................................1826 Removal.................................................................................................................1826 Installation............................................................................................................1831 Engine Controller...........................................................................................................1832 Removal.................................................................................................................1832 Installation............................................................................................................1832 Transmission Controller.....................................................................................................1833 Removal.................................................................................................................1833 Installation............................................................................................................1833 KOMTRAX Terminal............................................................................................................1834 Removal.................................................................................................................1834 Installation............................................................................................................1834 Rear Electrical Harness.....................................................................................................1835 Removal.................................................................................................................1835 Installation............................................................................................................1835 60 AIR CONDITIONER .................................................................................................................1837 PRECAUTIONS FOR REFRIGERANT.....................................................................................................1839 TROUBLESHOOTING PROCEDURE.......................................................................................................1840 Basic Flow Of Troubleshooting...............................................................................................1840 CIRCUIT DIAGRAM AND CONNECTOR PINS..............................................................................................1842 SYSTEM DIAGRAM..................................................................................................................1847 DETAIL OF AIR CONDITIONER UNIT..................................................................................................1849 Parts and Connectors Layout.................................................................................................1851 Testing wIth Self-Diagnosis Function (Control Panel Display)................................................................1855 Testing Temperature Control.................................................................................................1858 Testing Vent (Mode) Changeover..............................................................................................1859 Testing Fresh/Recirc Changeover.............................................................................................1862 Testing Inside and Outside Air Temp. Sensor.................................................................................1864 Testing Evaporator Temperature Sensor.......................................................................................1866 Testing Sunlight Sensor.....................................................................................................1867 Testing Relays 1............................................................................................................1868 TROUBLESHOOTING CHART 1.........................................................................................................1869 TROUBLESHOOTING CHART 2.........................................................................................................1870 INFORMATION IN TROUBLESHOOTING TABLE............................................................................................1873 TROUBLESHOOTING FOR POWER.......................................................................................................1874 Air Conditioner Does Not Operate............................................................................................1874 TROUBLESHOOTING COMPRESSOR AND REFRIGERANT SYSTEM...............................................................................1878 Air Is Not Cooled...........................................................................................................1878 TROUBLESHOOTING FOR BLOWER MOTOR................................................................................................1881 No Air Comes Out Or Air Flow Is Abnormal....................................................................................1881 TROUBLESHOOTING TEMPERATURE CONTROL.............................................................................................1887 TROUBLESHOOTING VENT (MODE) CHANGEOVER..........................................................................................1890 Machine Equipped With Automatic Air Conditioner.............................................................................1890 TROUBLESHOOTING FRESH/RECIRC AIR CHANGEOVER.....................................................................................1893 Machine Equipped With Automatic Air Conditioner.............................................................................1893 TROUBLESHOOTING WITH GAUGE PRESSURE.............................................................................................1895 CONNECTION OF SERVICE TOOL......................................................................................................1897 HANDLING OF COMPRESSOR OIL......................................................................................................1898 90 DIAGRAMS AND SCHEMATICS .........................................................................................................1901 POWER TRAIN HYDRAULIC CIRCUIT DIAGRAM...........................................................................................1902 Without Lockup Clutch.......................................................................................................1902 With Lockup Clutch..........................................................................................................1903 AUTOMATIC GREASING CIRCUIT DIAGRAM..............................................................................................1904 Hydraulic Circuit Diagram.......................................................................................................1907 Electrical Circuit Diagram (1/10)...............................................................................................1908 Electrical Circuit Diagram (2/10)...............................................................................................1909 Electrical Circuit Diagram (3/10)...............................................................................................1910 Electrical Circuit Diagram (4/10)...............................................................................................1911 Electrical Circuit Diagram (5/10)...............................................................................................1912 Electrical Circuit Diagram (6/10)...............................................................................................1913 Electrical Circuit Diagram (7/10)...............................................................................................1914 Electrical Circuit Diagram (8/10)...............................................................................................1915 Electrical Circuit Diagram (9/10)...............................................................................................1916 Electrical Circuit Diagram (10/10)..............................................................................................1917 Work Equipment Controller System Electrical Circuit Diagram.....................................................................1918 Connector List and Stereogram...................................................................................................1919
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⦁ This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
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