Trusted Business
Verified & Licensed
Virus Free Files
100% Safe Downloads
Secure Payment
SSL Protected
Instant Delivery
Available Immediately
Sale!
KOMATSU WA500-6 WHEEL LOADER SERVICE REPAIR MANUAL – PDF Download
Original price was: $81.95.$27.95Current price is: $27.95.
- KOMATSU WA500-6 WHEEL LOADER SERVICE REPAIR MANUAL
- SERIAL NUMBERS WA500-6 A93001-UP
- PUBLICATION NUMBER:CEBM022902
Instant PDF Download
Available immediately
Save to Your Device
Download & keep forever
Antivirus Scanned
100% virus-free
Trusted Worldwide
175,000+ customers
Description
KOMATSU WA500-6 WHEEL LOADER SERVICE REPAIR MANUAL
KOMATSU WA500-6 WHEEL LOADER SERVICE REPAIR MANUAL – PDF DOWNLOAD:
SCREENSHOT OF THE MANUAL:
DESCRIPTION:
KOMATSU WA500-6 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 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.
- (00) Index and Forward Section 00 explains the safety information, basic information, Torque tables, conversion tables, Coating Materials table, electric wire code information.
- (01) General Section 01 lists the general machine dimensions, performance specifications, component weights, and fuel, coolant, and lubricant specification charts.
- (10) Structure, Function, and Maintenance Standard Section 10 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 judgment standards when inspecting disassembled parts.
- (20) Standard Value Tables Section 20 explains the standard values for a new machine and judgment 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.
- (30) Testing and Adjusting Section 30 explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs.
- (40) Troubleshooting Section 40 includes the troubleshooting charts correlating Problems to Causes.
- (50) Disassembly and Assembly Section 50 explains the order to be followed when removing, installing, disassembling, or assembling each component, as well as precautions to be taken for these operations.
- (90) Diagrams and Schematics Section 90 has the foldout drawings for the machine.
TABLE OF CONTENTS:
KOMATSU WA500-6 WHEEL LOADER SERVICE REPAIR MANUAL
WA500-6 s/n A93001 - CEBM022902............................................................................... 0 CONTENTS.................................................................................................. 2 REVISED PAGES............................................................................................. 3 SAFETY.................................................................................................... 21 SAFETY NOTICE......................................................................................... 21 IMPORTANT SAFETY NOTICE........................................................................... 21 General Precautions............................................................................... 21 Preparations for Work............................................................................. 22 Precautions During Work........................................................................... 22 GENERAL................................................................................................... 23 HOW TO READ THE SHOP MANUAL............................................................................... 24 Volumes............................................................................................... 24 Distribution and Updating............................................................................. 24 Filing Method......................................................................................... 24 Revised Edition Mark.................................................................................. 24 Revisions............................................................................................. 24 Symbols............................................................................................... 24 HOISTING INSTRUCTIONS..................................................................................... 25 Hoisting.............................................................................................. 25 Making Signs.......................................................................................... 25 Precautions........................................................................................... 25 Precautions for Sling Work........................................................................ 25 Precautions for Using Mobile Crane................................................................ 26 Precautions for Using Overhead Hoist Crane........................................................ 26 Selecting Wire Ropes.................................................................................. 27 AIR CONDITIONER CIRCUITS.................................................................................. 28 Precautions for Handling Hoses and Tubes.............................................................. 28 Disconnecting Hoses and Tubes..................................................................... 28 Connecting Hoses and Tubes........................................................................ 28 MAINTENANCE STANDARD TERMS................................................................................ 29 HANDLING ELECTRIC AND HYDRAULIC EQUIPMENT................................................................. 31 Handling Electric Equipment........................................................................... 31 Handling Wiring Harnesses and Connectors.......................................................... 31 Main Failures Occurring in Wiring Harness......................................................... 31 Removing, Installing, and Drying Connectors and Wiring Harnesses.................................. 32 Handling Controller............................................................................... 36 Troubleshooting Electric Circuits................................................................. 36 Handling Hydraulic Equipment.......................................................................... 37 Handling Connectors Used for Engines.................................................................. 39 Slide Lock Type................................................................................... 39 Pull Lock Type.................................................................................... 40 Push Lock Type.................................................................................... 40 Turn-housing Type (Round Green Connector)......................................................... 42 PRECAUTIONS FOR OPERATIONS................................................................................ 43 Precautions when Carrying Out Removal Work............................................................ 43 Precautions when Carrying Out Installation Work....................................................... 44 Precautions when Completing the Operation............................................................. 45 PUSH-PULL COUPLER......................................................................................... 46 Type 1................................................................................................ 46 Disconnection..................................................................................... 46 Connection........................................................................................ 46 Type 2................................................................................................ 47 Disconnection..................................................................................... 47 Connection........................................................................................ 47 Type 3................................................................................................ 48 Disconnection..................................................................................... 48 Connection........................................................................................ 48 COATING MATERIALS......................................................................................... 49 STANDARD TIGHTENING TORQUE................................................................................ 51 Standard Tightening Torques of Bolts and Nuts......................................................... 51 Tightening Torques for Split Flange Bolts............................................................. 52 Tightening Torques for O-Ring Boss Piping Joints...................................................... 52 Tightening Torques for O-Ring Boss Plugs.............................................................. 53 Tightening Torques for Hoses (Taper Seal Type and Face Seal Type)..................................... 53 Tightening Toques for Face Seal Joints................................................................ 54 For 102, 107, and 114 Engine Series (Bolts and Nuts).............................................. 54 For 102, 107, and 114 Engine Series (Eye Joints).................................................. 54 For 102, 107, and 114 Engine Series (Taper Screws)................................................ 55 ELECTRIC WIRE CODE........................................................................................ 56 How to Read Electric Wire Code........................................................................ 56 CONVERSION TABLES......................................................................................... 57 Method of Using the Conversion Table.................................................................. 57 01 GENERAL.................................................................................................... 63 SPECIFICATIONS............................................................................................ 64 Dimension Drawing..................................................................................... 64 Specification Tables.................................................................................. 65 WEIGHT TABLE.............................................................................................. 68 FUEL, COOLANT, AND LUBRICANTS............................................................................. 70 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD............................................................... 73 ENGINE AND COOLING SYSTEM................................................................................. 79 Cooling System........................................................................................ 79 Engine and Transmission Mount......................................................................... 82 Joint................................................................................................. 84 Cooling Fan Pump...................................................................................... 86 Servo Valve........................................................................................... 94 Cooling Fan Motor..................................................................................... 98 Hydraulic Motor................................................................................... 102 Suction Valve..................................................................................... 103 Reversible Valve.................................................................................. 104 Safety Valve...................................................................................... 105 POWER TRAIN............................................................................................... 106 Drive Line Components................................................................................. 106 Power Train System Diagram............................................................................ 107 Without Lockup Clutch............................................................................. 107 With Lockup Clutch................................................................................ 108 Drive Shaft........................................................................................... 110 Power Train Piping Diagram............................................................................ 114 Torque Converter without Lockup Clutch................................................................ 116 Power Transmission Route.......................................................................... 122 Oil Flow.......................................................................................... 123 Torque Converter with Lockup Clutch................................................................... 124 Power Transmission Route: Lockup Clutch Disengaged................................................ 131 Power Transmission Route: Lockup Clutch Engaged................................................... 132 Oil Flow.......................................................................................... 133 Torque Converter Regulator Valve...................................................................... 134 Transmission with Lockup Clutch....................................................................... 136 Disc Clutch....................................................................................... 150 Power Transmission Route.......................................................................... 152 Transfer.......................................................................................... 162 Transmission Control Valve (without Lockup Clutch).................................................... 164 Transmission Control Value (with Lockup Clutch)....................................................... 168 ECMV (Electronic Control Modulation Valve)............................................................ 172 Pressure Control Valve and Fill Switch............................................................ 173 Operation of ECMV................................................................................. 174 For Lockup Clutch................................................................................. 177 Main Relief Valve and Torque Converter Relief Valve................................................... 180 Outline........................................................................................... 182 Operation......................................................................................... 182 Lubrication Relief Valve.............................................................................. 184 Torque Converter Oil Cooler........................................................................... 186 Torque Converter Oil Filter........................................................................... 188 Center Support........................................................................................ 190 Axle.................................................................................................. 194 Front Axle........................................................................................ 194 Rear Axle......................................................................................... 196 Differential.......................................................................................... 198 Front Differential................................................................................ 198 Front Differential (with Limited Slip Differential)............................................... 199 Rear Differential................................................................................. 200 Rear Differential (with Limited Slip Differential)................................................ 201 Limited Slip Differential (if equipped)........................................................... 207 Final Drive........................................................................................... 213 STEERING SYSTEM........................................................................................... 217 Steering Piping Diagram............................................................................... 217 Steering Column....................................................................................... 218 Steering Control Valve................................................................................ 220 Steering Relief Valve................................................................................. 227 Safety Suction Valve.................................................................................. 229 Steering Valve........................................................................................ 231 Stop Valve............................................................................................ 236 Joystick Steering Lever Linkage (if equipped)......................................................... 237 Steering Cylinder..................................................................................... 238 Emergency Steering (if equipped)...................................................................... 241 Piping Diagram.................................................................................... 241 Diverter Valve (for emergency steering)........................................................... 242 Operation......................................................................................... 246 BRAKE SYSTEM.............................................................................................. 248 Piping Diagram........................................................................................ 248 Brake Valve........................................................................................... 250 Slack Adjuster........................................................................................ 256 Accumulator Charge Valve.............................................................................. 259 PPC Relief Valve...................................................................................... 263 Accumulator (for Brake)............................................................................... 265 Brake................................................................................................. 266 Parking Brake Control................................................................................. 270 Parking Brake......................................................................................... 272 Parking Brake Solenoid Valve.......................................................................... 274 Emergency Parking Brake Release Valve................................................................. 276 UNDERCARRIAGE AND FRAME................................................................................... 278 Axle Mount............................................................................................ 278 Center Hinge Pin...................................................................................... 282 HYDRAULIC SYSTEM.......................................................................................... 286 Hydraulic Piping Diagram.............................................................................. 286 Work Equipment Control Lever Linkage.................................................................. 288 Hydraulic Tank........................................................................................ 289 Steering Pump......................................................................................... 292 Pump Unit......................................................................................... 294 Servo Valve....................................................................................... 299 LS Valve.......................................................................................... 302 CO Valve.......................................................................................... 302 Work Equipment Hydraulic Pump HPV190.................................................................. 304 LS Valve.......................................................................................... 311 PC Valve.......................................................................................... 317 PC-EPC Valve...................................................................................... 324 Control Valve......................................................................................... 328 CLSS (Closed Center Load-Sensing System).............................................................. 342 Function and Operation of Each Valve.................................................................. 348 Pressure Compensation Valve....................................................................... 348 LS Shuttle Valve.................................................................................. 354 LS Bypass Valve................................................................................... 356 ECSS Control Valve................................................................................ 358 Accumulator Pressure Relief Valve................................................................. 360 Accumulator Charge Valve.......................................................................... 362 Accumulator (for PPC Circuit)......................................................................... 367 Work Equipment Electric Lever......................................................................... 368 WORK EQUIPMENT............................................................................................ 374 Work Equipment Linkage................................................................................ 374 Bucket................................................................................................ 378 Bucket 5.6 M3 (with Bolt-On Cutting Edge)......................................................... 378 Bucket 5.2 M3 (with Teeth and Segment Edge)....................................................... 379 Bucket Positioner and Boom Kickout.................................................................... 380 Work Equipment Lubrication............................................................................ 381 CAB AND ITS ATTACHMENTS................................................................................... 383 ROPS Cab.............................................................................................. 383 Air Conditioner....................................................................................... 385 Air Conditioner Piping Diagram.................................................................... 385 Cooling Circuit Diagram........................................................................... 386 Air Conditioner Unit.............................................................................. 387 Condenser......................................................................................... 388 Receiver.......................................................................................... 390 Air Conditioner Panel............................................................................. 391 ELECTRICAL SYSTEM......................................................................................... 394 Machine Monitor System................................................................................ 394 Machine Monitor Circuits.......................................................................... 396 Machine Monitor................................................................................... 402 Machine Monitor Operation Switches................................................................ 404 Items Displayed on Monitor........................................................................ 405 Character Display Function........................................................................ 415 Operator Mode Functions............................................................................... 416 Service Mode Functions................................................................................ 419 Service Mode Menu................................................................................. 420 Electrical System Failure History Display Function................................................ 424 Mechanical System Failure History Display Function................................................ 426 Real-Time Monitor Function........................................................................ 427 Engine Reduced-Cylinder (Cylinder Cut-out) Function............................................... 433 No Injection Cranking Function.................................................................... 434 Adjustment Function............................................................................... 435 Maintenance Monitoring Function................................................................... 437 Operating Information Display Function............................................................ 441 Optional Device Selecting Function................................................................ 443 Machine Serial Number Input Function.............................................................. 443 Model Selection Function.......................................................................... 443 Load Meter Function (if equipped)................................................................. 444 Rear Side of Machine Monitor.......................................................................... 451 Connector Signal Tables........................................................................... 453 Work Equipment Control System......................................................................... 461 Work Equipment Controller......................................................................... 461 Work Equipment Controls........................................................................... 463 Remote Positioner................................................................................. 471 Lift Arm Positioner............................................................................... 473 Semi-Automatic Digging............................................................................ 478 Pump Swash Plate Control.......................................................................... 481 Joystick Steering Control......................................................................... 484 Real-Time Monitor................................................................................. 486 Diagnosis......................................................................................... 491 Input and Output Signals.......................................................................... 492 Transmission Controller System........................................................................ 495 Electrical Circuit Diagram........................................................................ 495 Transmission Controller Gearshifting Control...................................................... 497 Auto-Shift Points Table........................................................................... 501 Transmission Controller Protection Function....................................................... 502 Engine Control.................................................................................... 505 Transmission Cutoff Control....................................................................... 508 ECSS Function..................................................................................... 510 Economy Lamp...................................................................................... 512 Cooling Fan Control............................................................................... 513 Right FNR Switch Control (if equipped)............................................................ 517 Joystick Control.................................................................................. 519 Real-Time Monitor................................................................................. 522 Diagnosis......................................................................................... 530 Input and Output Signals.......................................................................... 531 ELECTRONIC TRANSMISSION CONTROL........................................................................... 534 Combination Switch.................................................................................... 536 Engine Starting Circuit............................................................................... 538 Engine Stopping Circuit............................................................................... 540 Preheating Circuit.................................................................................... 541 Parking Brake Circuit................................................................................. 543 Backup and Stop Lamp circuit.......................................................................... 548 Small Lamp and Head Lamp Circuits..................................................................... 550 Working Lamp Circuit.................................................................................. 551 Horn Circuit.......................................................................................... 552 Wiper and Window Washer Circuits...................................................................... 553 Sensors and Switches.................................................................................. 556 Input Shaft Speed Sensor.......................................................................... 556 Output Shaft Speed Sensor......................................................................... 556 Left Brake Pressure Sensor........................................................................ 557 Transmission Oil Temperature Sensor............................................................... 558 Torque Converter Oil Temperature Sensor........................................................... 558 Hydraulic Oil Temperature Sensor.................................................................. 558 Axle Oil Temperature Sensor....................................................................... 558 Kickdown Hold Switch.............................................................................. 559 Joystick Knob (if equipped)....................................................................... 560 Right FNR Switch (if equipped).................................................................... 561 Lift Arm Angle Sensor (if equipped)............................................................... 562 Loader Pump Pressure Sensor....................................................................... 563 Lift Arm Cylinder Bottom Pressure Sensor.......................................................... 563 Lift Arm Cylinder Head Pressure Sensor (Load Meter) (if equipped)................................. 563 Fuel Level Sensor................................................................................. 565 Parking Brake Pressure Switch..................................................................... 566 Stop Lamp Pressure Switch......................................................................... 566 Air Cleaner Clogging Sensor....................................................................... 567 Transmission Clogging Sensor...................................................................... 568 Steering Oil Pressure Sensor Switch............................................................... 569 Radiator Coolant Level Sensor..................................................................... 570 Brake Accumulator Pressure Switch (front and rear)................................................ 571 Battery Electrolyte Level Sensor.................................................................. 572 Accelerator Pedal Sensor.......................................................................... 573 Emergency Brake Pressure Switch (front)........................................................... 574 Emergency Brake Pressure Switch (rear)............................................................ 574 KOMTRAX SYSTEM............................................................................................ 576 KOMTRAX Terminal System............................................................................... 576 KOMTRAX Terminal.................................................................................. 577 Input and Output Signals.............................................................................. 578 20 STANDARD VALUE TABLES...................................................................................... 579 STANDARD VALUE TABLES..................................................................................... 580 Standard Service Value Table for Engine............................................................... 580 Standard Service Value Table for Chassis.............................................................. 581 MACHINE POSTURE........................................................................................... 588 30 TESTING AND ADJUSTING...................................................................................... 591 TOOLS..................................................................................................... 595 Tools for Testing, Adjusting, and Troubleshooting..................................................... 595 ENGINE COMPONENTS......................................................................................... 599 Measuring Engine Speed................................................................................ 599 Measuring Exhaust Gas Color........................................................................... 602 Using Handy Smoke Checker (A1).................................................................... 602 Using Smoke Meter (A2)............................................................................ 602 Measuring Exhaust Temperature......................................................................... 604 Adjusting Valve Clearance............................................................................. 606 Testing Compression Pressure.......................................................................... 608 Measuring Blow-By Pressure............................................................................ 611 Measuring Engine Oil Pressure......................................................................... 613 Measuring Intake Air (Boost) Pressure................................................................. 614 FUEL SYSTEM............................................................................................... 616 Handling Fuel System Equipment........................................................................ 616 Releasing Residual Pressure in Fuel System............................................................ 616 Testing Fuel Pressure................................................................................. 617 Testing Fuel Return Rate and Leakage.................................................................. 618 Bleeding Air from Fuel Circuit........................................................................ 622 Testing Leakage in Fuel System........................................................................ 624 Handling Reduced-Cylinder Mode Operation.............................................................. 625 Handling No-Injection Cranking Operation.............................................................. 625 Handling Controller Voltage Circuit................................................................... 625 BELTS..................................................................................................... 626 Alternator Belt Tension............................................................................... 626 Air Conditioner Compressor Belt Tension............................................................... 627 TRANSMISSION SPEED SENSOR................................................................................. 628 DIRECTIONAL LEVER......................................................................................... 630 POWER TRAIN OIL PRESSURES................................................................................. 631 Measuring............................................................................................. 633 Transmission Main Relief Pressure................................................................. 633 Torque Converter Relief Pressure.................................................................. 634 Torque Converter Outlet Pressure.................................................................. 635 Lockup Clutch Pressure............................................................................ 636 F (Forward) Clutch Pressure....................................................................... 637 R (Reverse) Clutch Pressure....................................................................... 638 1st Clutch Pressure............................................................................... 639 2nd Clutch Pressure............................................................................... 640 3rd Clutch Pressure............................................................................... 641 4th Clutch Pressure............................................................................... 642 Lubrication Pressure.............................................................................. 643 Adjusting............................................................................................. 644 Transmission Main Relief Valve.................................................................... 644 Torque Converter Relief Valve..................................................................... 644 FLUSHING TRANSMISSION SYSTEM.............................................................................. 645 Torque Converter and Transmission Hydraulic Circuit................................................... 645 WHEN TRANSMISSION VALVE FAILS............................................................................. 648 Moving Machine when Transmission Valve is Broken...................................................... 648 STEERING SYSTEM........................................................................................... 650 Steering Stop Valve................................................................................... 650 Testing........................................................................................... 650 Adjusting......................................................................................... 651 Steering Wheel........................................................................................ 652 Measuring Play.................................................................................... 652 Measuring Operating Effort........................................................................ 653 Measuring Operating Time.......................................................................... 654 Steering Oil Pressure................................................................................. 655 Measuring Steering Relief Pressure................................................................ 655 Measuring Pilot Circuit Pressure.................................................................. 657 Measuring LS Circuit Pressure..................................................................... 658 Adjusting Steering Relief Pressure................................................................ 659 Bleeding Air From Steering Cylinder Circuit........................................................... 660 HYDRAULIC FAN............................................................................................. 661 Measuring Fan Speed................................................................................... 661 Measuring Fan Drive Oil Pressure...................................................................... 662 Measuring Fan Reverse Solenoid Output Pressure........................................................ 663 Bleeding Air from Hydraulic Drive Fan Circuit......................................................... 664 BRAKE SYSTEM.............................................................................................. 666 Measuring Brake Pedal................................................................................. 666 Measuring Brake Performance........................................................................... 667 Accumulator Charge Pressure........................................................................... 668 Testing Wheel Brake Oil Pressure...................................................................... 671 Measuring Wear of Brake Disc.......................................................................... 673 Bleeding Air from Brake Circuit....................................................................... 675 Bleeding Air from Slack Adjuster.................................................................. 675 Bleeding Air from Brake Cylinder.................................................................. 676 Releasing Residual Pressure in Brake Accumulator Circuit.............................................. 677 Parking Brake......................................................................................... 678 Testing Parking Brake Performance................................................................. 678 Measuring Parking Brake Oil Pressure.............................................................. 679 Testing Wear of Parking Brake Disc................................................................ 683 Releasing Parking Brake Manually.................................................................. 684 WORK EQUIPMENT............................................................................................ 685 Control Lever......................................................................................... 685 Measuring Operating Effort........................................................................ 685 Measuring Stroke.................................................................................. 685 PPC Oil Pressure...................................................................................... 686 Shutoff Valve Basic Pressure...................................................................... 686 Shutoff Valve Output Pressure..................................................................... 688 Oil Pressure.......................................................................................... 689 Preparation Work.................................................................................. 689 Measuring Work Equipment Relief Pressure.......................................................... 689 Measuring Unload Pressure......................................................................... 690 Measuring LS Differential Pressure................................................................ 691 Adjusting Unload Valve............................................................................ 694 Adjusting Work Equipment Relief Pressure.......................................................... 694 Adjusting LS Differential Pressure................................................................ 695 Bleeding Air from Work Equipment Circuit.............................................................. 696 From Work Equipment Pump (piston pump)............................................................ 696 From Hydraulic Cylinder........................................................................... 696 Releasing Residual Pressure in Hydraulic Circuit...................................................... 697 Between Respective Hydraulic Cylinders and Control Valve.......................................... 697 From ECSS (Travel Damper) Circuit................................................................. 697 Moving Machine When Removing Operator Cab............................................................. 698 Bucket Positioner..................................................................................... 699 Testing and Adjusting............................................................................. 699 Adjusting Clearance............................................................................... 699 Adjusting Bucket-Levelness Detecting Proximity Switch............................................. 700 Adjusting Maximum Tilt-Detecting Proximity Switch................................................. 701 Position-Detecting Lever.............................................................................. 702 Checking Proximity Switch Operation Pilot Lamp........................................................ 703 ELECTRICAL SYSTEM......................................................................................... 704 Troubleshooting....................................................................................... 704 Procedure for Testing Diodes...................................................................... 704 Using Digital-Type Circuit Tester................................................................. 704 Using Analog-Type Circuit Tester.................................................................. 705 Preparation Work for Troubleshooting Electrical System................................................ 706 Machine Monitor................................................................................... 706 Transmission Controller........................................................................... 707 Work Equipment Controller......................................................................... 708 KOMTRAX Terminal.................................................................................. 708 KOMTRAX TERMINAL SYSTEM................................................................................... 709 Starting KOMTRAX Terminal Operations.................................................................. 709 Station Opening Check in Machine Side............................................................. 709 Application for the Start of Use.................................................................. 713 KOMTRAX Terminal Indicator Lamps (if equipped).................................................... 714 MACHINE MONITOR SYSTEM.................................................................................... 717 Adjusting Replaced, Reassembled, or Added Sensors and Controllers..................................... 717 Adjustment for User’s Needs....................................................................... 718 Normal and Special Functions of Machine Monitor....................................................... 719 Normal Functions: Operator Mode................................................................... 719 Special Functions: Service Mode................................................................... 719 Functions and Flow of Service Mode.................................................................... 720 Operator Mode......................................................................................... 723 Service Meter/Clock Display Function (1).......................................................... 723 Load Meter Function (if equipped) (2)............................................................. 723 Odometer Display Function (3)..................................................................... 723 Maintenance Monitoring Function (4)............................................................... 724 Telephone Number Input Function (5)............................................................... 724 Language Selection Function (6)................................................................... 724 Monitor Brightness Adjustment Function (7)........................................................ 724 Time Adjustment Function (8)...................................................................... 725 Travel Speed/Engine Speed Display Selecting Function (9).......................................... 725 Travel Speed/Engine Speed Display/Non-Display Selecting Function (10)............................. 725 Action Code Display Function (11)................................................................. 726 Failure Code Display Function (12)................................................................ 726 Service Mode.......................................................................................... 728 Switching to Service Mode and Screen Display (1).................................................. 728 Electrical System Failure History Display Function (ELECTRIC FAULT) (2)........................... 730 Mechanical System Failure History Display Function (MACHINE FAULT) (3)............................ 732 Real-Time Monitoring Function (REAL-TIME MONITOR) (4)............................................. 733 Real-Time Monitoring Codes Tables................................................................. 736 Cylinder Cutout Function (CYLINDER CUT-OUT) (5)................................................... 761 No-Injection Cranking Function (NO INJECTION) (6)................................................. 762 Adjustment Function (TUNING) (7).................................................................. 763 Maintenance Monitoring Function (MAINTENANCE MONITOR) (8)......................................... 794 Operating Information Display Function (OPERATION INFO) (9)....................................... 799 Optional Device Selecting Function (OPTIONAL SELECT) (10)......................................... 802 Machine Serial Number Input Function (MACHINE No. SET) (11)....................................... 806 Model Selection Function (MACHINE WA500) (12)..................................................... 807 Initialize Function (INITIALIZE) (13)............................................................. 808 PM CLINIC INSPECTION TABLES............................................................................... 809 40 TROUBLESHOOTING............................................................................................ 813 TROUBLESHOOTING POINTS.................................................................................... 829 TROUBLESHOOTING EVENTS.................................................................................... 831 MAINTENANCE PRECAUTIONS................................................................................... 832 Precautions when Handling Electrical Equipment........................................................ 832 Handling Electronic Control Unit...................................................................... 837 Points to Remember when Troubleshooting Electrical Circuits........................................... 838 ELECTRIC WIRE CODE........................................................................................ 839 How to Read Electric Wire Code........................................................................ 839 Type, Symbol, and Material........................................................................ 839 Dimensions........................................................................................ 840 Color Codes Table................................................................................. 841 Circuits and Color Codes.......................................................................... 842 Classification by Thickness....................................................................... 842 HANDLING HYDRAULIC EQUIPMENT.............................................................................. 843 CHECKS BEFORE TROUBLESHOOTING............................................................................. 845 Categories and Method of Using Troubleshooting Charts................................................. 846 Troubleshooting Individual Electrical Circuits........................................................ 847 Chart Use......................................................................................... 849 Chart Tips........................................................................................ 849 Troubleshooting Individual Hydraulic Circuits......................................................... 850 CONNECTOR PIN NUMBERS..................................................................................... 852 Connection Tables for Connector PIN Numbers........................................................... 852 X-Type Connectors................................................................................. 852 SWP-Type Connectors............................................................................... 854 M-Type Connectors................................................................................. 856 S-Type Connectors................................................................................. 858 MIC-Type Connectors............................................................................... 860 AMP040-Type Connectors............................................................................ 862 AMP070-Type Connectors............................................................................ 864 AMP Connector..................................................................................... 866 L-Type Connector.................................................................................. 866 PA-Type Connector................................................................................. 867 Bendix (MS) Connector............................................................................. 867 KES1 (Automobile) Connectors...................................................................... 868 F-Type Connector.................................................................................. 869 Connectors for Relay (Socket-Type)................................................................ 870 HD30 Series Connectors............................................................................ 871 DT Series Connectors.............................................................................. 876 DTM Series Connectors............................................................................. 878 DTHD Series Connectors............................................................................ 878 DTP Series Connectors............................................................................. 879 DRC26 Series Connectors........................................................................... 880 DRC12, 16 Series Connectors....................................................................... 882 AMP Connectors for Pump Controller (CH700)........................................................ 883 BOSCH Connectors for Engine....................................................................... 884 SUMITOMO Connectors for Engine.................................................................... 885 CANNON Connector for Engine....................................................................... 886 AMP Connectors for Engine......................................................................... 887 FRAMATOME Connectors for Engine................................................................... 888 PACKARD Connectors for Engine..................................................................... 890 DT Series Connectors for Engine................................................................... 891 T-BRANCH BOX and T-BRANCH ADAPTER TABLE................................................................... 892 MODE CHART................................................................................................ 897 INFORMATION IN TESTING PROCEDURES......................................................................... 900 TROUBLESHOOTING BY FAILURE CODE........................................................................... 902 Failure Code Table.................................................................................... 902 FUSE BOX AND SLOW-BLOW FUSES.............................................................................. 916 Connection Table...................................................................................... 916 Fuse Box A........................................................................................ 916 Fuse Box B........................................................................................ 916 Slow-Blow Fuses................................................................................... 917 FAILURE CODES............................................................................................. 918 1500LO.................................................................................................... 919 TORQFLOW Transmission: Double Meshing................................................................. 919 15BONX.................................................................................................... 920 Transmission Filter: Clogging......................................................................... 920 15SAL1.................................................................................................... 922 ECMV F Clutch: When Command Current is OFF, Fill Signal is ON......................................... 922 15SALH.................................................................................................... 924 ECMV F Clutch: When Command Current is ON, Fill Signal is OFF......................................... 924 15SBL1.................................................................................................... 926 ECMV R Clutch: When Command Current is OFF, Fill Signal is ON......................................... 926 15SBLH.................................................................................................... 928 ECMV R Clutch: When Command Current is ON, Fill Signal is OFF......................................... 928 15SEL1.................................................................................................... 930 ECMV 1st Clutch: When Command Current is OFF, Fill Signal is ON....................................... 930 15SELH.................................................................................................... 932 ECMV 1st Clutch: When Command Current is ON, Fill Signal is OFF....................................... 932 15SFL1.................................................................................................... 934 ECMV 2nd Clutch: When Command Current is OFF, FIll Signal is ON....................................... 934 15SFLH.................................................................................................... 936 ECMV 2nd Clutch: When Command Current is ON, Fill Signal is OFF....................................... 936 15SGL1.................................................................................................... 938 ECMV 3rd Clutch: When Command Current is OFF, Fill Signal is ON....................................... 938 15SGLH.................................................................................................... 940 ECMV 3rd Clutch: When Command Current is ON, Fill Signal is OFF....................................... 940 15SHL1.................................................................................................... 942 ECMV 4th Clutch: When Command Current is OFF, Fill Signal is ON....................................... 942 15SHLH.................................................................................................... 944 ECMV 4th Clutch: When Command Current is ON, Fill Signal is OFF....................................... 944 2F00MA.................................................................................................... 946 Parking Brake: Malfunction............................................................................ 946 2G42ZG.................................................................................................... 948 Front Accumulator: Low Oil Pressure................................................................... 948 2G43ZG.................................................................................................... 950 Rear Accumulator: Low Oil Pressure.................................................................... 950 44K0L4.................................................................................................... 952 Bucket Positioner: ON/OFF Signals Disagree............................................................ 952 AA1ANX.................................................................................................... 954 Air Cleaner: Clogging................................................................................. 954 AB00L6.................................................................................................... 956 Alternator: Signal Disagrees with Operating State of Engine........................................... 956 AB00MA.................................................................................................... 958 Alternator: Malfunction............................................................................... 958 B@BAZG.................................................................................................... 960 Engine: Low Engine Oil Pressure....................................................................... 960 B@BAZK.................................................................................................... 962 Engine Oil: Low Level................................................................................. 962 B@BCNS.................................................................................................... 964 Engine: Coolant: Overheating.......................................................................... 964 B@BCZK.................................................................................................... 966 Engine: Coolant: Low Level............................................................................ 966 B@C7NS.................................................................................................... 968 Brake: Brake Oil: Overheating......................................................................... 968 b@CENS.................................................................................................... 970 Torque Converter Oil: Overheating..................................................................... 970 B@CENS.................................................................................................... 972 Torque Converter Oil: Overheating..................................................................... 972 B@GAZK.................................................................................................... 974 Battery Electrolyte: Low Level........................................................................ 974 B@HANS.................................................................................................... 976 Hydraulic Oil: Overheating............................................................................ 976 CA111..................................................................................................... 978 Abnormality in Engine Controller...................................................................... 978 CA115..................................................................................................... 981 Engine Ne or Bkup Speed Sensor Error.................................................................. 981 CA122..................................................................................................... 982 Charge Pressure Sensor High Error..................................................................... 982 CA123..................................................................................................... 984 Charge Pressure Sensor Low Error...................................................................... 984 CA131..................................................................................................... 986 Throttle Sensor High Error............................................................................ 986 CA132..................................................................................................... 988 Throttle Sensor Low Error............................................................................. 988 CA135..................................................................................................... 990 Engine Oil Pressure Sensor High Error................................................................. 990 CA141..................................................................................................... 992 Engine Oil Pressure Sensor Low Error.................................................................. 992 CA144..................................................................................................... 994 Coolant Temperature Sensor High Error................................................................. 994 CA145..................................................................................................... 996 Coolant Temperature Sensor Low Error.................................................................. 996 CA153..................................................................................................... 998 Charge Temperature Sensor High Error.................................................................. 998 CA154.....................................................................................................1000 Charge Temperature Sensor Low Error...................................................................1000 CA187.....................................................................................................1001 Sensor Power Supply 2 Low Error.......................................................................1001 CA221.....................................................................................................1002 Atmospheric Pressure Sensor High Error................................................................1002 CA222.....................................................................................................1004 Atmospheric Pressure Sensor Low Error.................................................................1004 CA227.....................................................................................................1006 Sensor Power Supply 2 High Error......................................................................1006 CA234.....................................................................................................1008 Engine Overspeed......................................................................................1008 CA238.....................................................................................................1010 Ne Speed Sensor Power Supply Error....................................................................1010 CA263.....................................................................................................1012 Fuel Temperature Sensor High Error....................................................................1012 CA265.....................................................................................................1014 Fuel Temperature Sensor Low Error.....................................................................1014 CA271.....................................................................................................1016 PCV1 Short Circuit....................................................................................1016 CA272.....................................................................................................1018 PCV1 Disconnection....................................................................................1018 CA273.....................................................................................................1020 PCV2 Short Circuit....................................................................................1020 CA274.....................................................................................................1022 PCV2 Disconnection....................................................................................1022 CA322.....................................................................................................1024 Injector #1 (L/B #1) Open/Short Error.................................................................1024 CA323.....................................................................................................1026 Injector #5 (L/B #5) Open/Short Error.................................................................1026 CA324.....................................................................................................1028 Injector #3 (L/B #3) Open/Short Error.................................................................1028 CA325.....................................................................................................1030 Injector #6 (L/B #6) Open/Short Error.................................................................1030 CA331.....................................................................................................1032 Injector #2 (L/B #2) Open/Short Error.................................................................1032 CA332.....................................................................................................1034 Injector #4 (L/B #4) Open/Short Error.................................................................1034 CA342.....................................................................................................1036 Calibration Code Data Inconsistency...................................................................1036 CA351.....................................................................................................1037 Injectors Drive Circuit Error.........................................................................1037 CA352.....................................................................................................1040 Sensor Power Supply 1 Low Error.......................................................................1040 CA386.....................................................................................................1042 Sensor Power Supply 1 High Error......................................................................1042 CA431.....................................................................................................1044 Idle Validation Switch Error..........................................................................1044 CA432.....................................................................................................1046 Idle Validation Action Error..........................................................................1046 CA441.....................................................................................................1047 Battery Voltage Low Error.............................................................................1047 CA442.....................................................................................................1048 Battery Voltage High Error............................................................................1048 CA449.....................................................................................................1049 Common Rail Pressure High Error 2.....................................................................1049 CA451.....................................................................................................1050 Common Rail Pressure Sensor High Error................................................................1050 CA452.....................................................................................................1052 Common Rail Pressure Sensor Low Error.................................................................1052 CA553.....................................................................................................1053 Common Rail Pressure High Error 1.....................................................................1053 CA554.....................................................................................................1054 Common Rail Pressure In-Range Error...................................................................1054 CA559.....................................................................................................1056 Supply Pump Pressure Very Low Error 1.................................................................1056 Checksheet for No-Pressure Feed...................................................................1058 CA689.....................................................................................................1060 Engine Ne Speed Sensor Error..........................................................................1060 CA731.....................................................................................................1062 Engine Bkup Speed Sensor Phase Error..................................................................1062 CA757.....................................................................................................1063 All Continuous Data Lost Error........................................................................1063 CA778.....................................................................................................1064 Engine Bkup Speed Sensor Error........................................................................1064 CA1228....................................................................................................1066 EGR Valve Servo Error 1...............................................................................1066 CA1625....................................................................................................1067 EGR Valve Servo Error 2...............................................................................1067 CA1626....................................................................................................1068 Bypass Valve Solenoid Current High Error..............................................................1068 CA1627....................................................................................................1070 Bypass Valve Solenoid Drive Circuit Disconnection Error...............................................1070 CA1628....................................................................................................1071 Bypass Valve Servo Error 1............................................................................1071 CA1629....................................................................................................1072 Bypass Valve Servo Error 2............................................................................1072 CA1631....................................................................................................1074 Bypass Valve Lift Sensor High Error...................................................................1074 CA1632....................................................................................................1076 Bypass Valve Lift Sensor Low Error....................................................................1076 CA1633....................................................................................................1077 KOMNET Datalink Timeout Error.........................................................................1077 CA1642....................................................................................................1078 Abnormally Low Signal in EGR Inlet Pressure Sensor....................................................1078 EGR Inlet Pressure Sensor Low Error...................................................................1079 CA1653....................................................................................................1080 Abnormally High Signal in EGR Inlet Pressure Sensor...................................................1080 EGR Inlet Pressure Sensor High Error..................................................................1082 CA2185....................................................................................................1084 Throttle Sensor Supply Voltage High Error.............................................................1084 CA2186....................................................................................................1086 Throttle Sensor Power Supply Low Error................................................................1086 CA2249....................................................................................................1087 Supply Pump Pressure Very Low Error 2.................................................................1087 CA2271....................................................................................................1088 EGR Valve Lift Sensor High Error......................................................................1088 CA2272....................................................................................................1090 EGR Valve Lift Sensor Low Error.......................................................................1090 CA2351....................................................................................................1092 EGR Valve Solenoid Operation Short Circuit............................................................1092 CA2352....................................................................................................1094 EGR Valve Solenoid Operation Disconnection Error......................................................1094 CA2555....................................................................................................1095 Intake Heater Relay Disconnection Error...............................................................1095 CA2556....................................................................................................1096 Intake Heater Relay Short Circuit Error...............................................................1096 D160KZ....................................................................................................1098 Backup Lamp Relay: Disconnection or Short Circuit.....................................................1098 D191KA....................................................................................................1100 Joystick Steering Neutral Safety Relay: Disconnection.................................................1100 D191KB....................................................................................................1102 Joystick Steering Neutral Safety Relay: Short Circuit.................................................1102 D192KA....................................................................................................1104 ECSS Solenoid: Disconnection..........................................................................1104 D192KB....................................................................................................1105 ECSS Solenoid: Short Circuit..........................................................................1105 D192KY....................................................................................................1106 ECSS Solenoid Relay: Short Circuit with Power Supply Line.............................................1106 D193KA....................................................................................................1108 Joystick Steering Solenoid Cut Relay: Disconnection...................................................1108 D193KB....................................................................................................1110 Joystick Steering Solenoid Cut Relay: Short Circuit...................................................1110 D193KY....................................................................................................1112 Joystick Steering Solenoid Cut Relay: Short Circuit with Power Supply Line............................1112 D5ZHKA....................................................................................................1114 Terminal C Signal: Disconnection......................................................................1114 D5ZHKB....................................................................................................1118 Terminal C Signal: Short Circuit......................................................................1118 D5ZHKZ....................................................................................................1120 Terminal C Signal: Disconnection or Short Circuit.....................................................1120 D5ZHL6....................................................................................................1124 Terminal C Signal: Signal Does Not Match Engine Running or Stopped State..............................1124 DA80L4....................................................................................................1126 Auto-Grease Controller: ON/OFF Signals Disagree.......................................................1126 DAF3KK....................................................................................................1128 Machine Monitor: Low Source Voltage (input)...........................................................1128 DAF5KP....................................................................................................1130 Machine Monitor: Low Output Voltage...................................................................1130 DAFRKR....................................................................................................1134 Machine Monitor: CAN Defective Communication..........................................................1134 DAQ0KK....................................................................................................1136 Transmission Controller: Low Source Voltage...........................................................1136 DAQ0KT....................................................................................................1138 Transmission Controller: Abnormality in Controller....................................................1138 DAQ2KK....................................................................................................1140 Transmission Controller Load Power Supply Line: Low Source Voltage (input)............................1140 DAQ9KQ....................................................................................................1142 Transmission Controller: Disagreement of Model Selection Signals......................................1142 DAQRKR....................................................................................................1144 Transmission Controller: CAN Defective Communication..................................................1144 DAQRMA....................................................................................................1146 Transmission Controller Option Setting: Malfunction...................................................1146 DB2RKR....................................................................................................1148 Engine Controller: CAN Defective Communication........................................................1148 DB90KK....................................................................................................1150 Work Equipment Controller: Low Source Voltage (input).................................................1150 DB90KT....................................................................................................1152 Work Equipment Controller: Abnormality in Controller..................................................1152 DB92KK....................................................................................................1154 Work Equipment Controller Load Power Supply Line: Low Source Voltage (input)..........................1154 DB95KX....................................................................................................1156 Work Equipment Controller Power Supply Output: Out-of-Input Signal Range..............................1156 DB99KQ....................................................................................................1159 Work Equipment Controller: Disagreement of Model Selection Signals....................................1159 DB9RKR....................................................................................................1160 Work Equipment Controller: CAN Defective Communication................................................1160 DB9RMA....................................................................................................1162 Work Equipment Controller Option Setting: Malfunction.................................................1162 DB9RMC....................................................................................................1164 Work Equipment Controller: CAN Communication Defective Operation......................................1164 DD15LD....................................................................................................1166 Switch (Panel Switch 1 n): Switch is Kept Pressed for Long Time.......................................1166 DD16LD....................................................................................................1168 Switch (Panel Switch 2 ‡): Switch is Kept Pressed for Long Time.......................................1168 DD17LD....................................................................................................1170 Switch (Panel Switch 3 <): Switch is Kept Pressed for Long Time.......................................1170 DD18LD....................................................................................................1172 Switch (Panel Switch 4 >): Switch is Kept Pressed for Long Time.......................................1172 DD1ALD....................................................................................................1174 Remote Positioner Raise/Lower Set Switch (raise): Switch Is Kept Pressed for Long Time................1174 DD1BLD....................................................................................................1176 Remote Positioner Raise/Lower Set Switch (lower): Switch is Kept Pressed for Long Time................1176 DD1CLD....................................................................................................1178 Load Meter Subtotal Switch: Switch is Kept Pressed for Long Time......................................1178 DD1FLD....................................................................................................1180 Load Meter Mode Selector Switch (A/B): Switch is Kept Pressed for Long Time...........................1180 DD1GLD....................................................................................................1182 Load Meter Mode Selector Switch (+/-): Switch is Kept Pressed for Long Time...........................1182 DD1HLD....................................................................................................1184 Load Meter Display Selector Switch: Switch is Kept Pressed for Long Time..............................1184 DDA7L4....................................................................................................1186 RPM Set ON/OFF Switch: ON/OFF Signals Disagree........................................................1186 DDA8KB....................................................................................................1188 RPM Set Idle UP/DOWN Selector Switch (idle UP): Short Circuit.........................................1188 DDA9KB....................................................................................................1190 RPM Set Idle UP/DOWN Selector Switch (idle DOWN): Short Circuit.......................................1190 DDB6L4....................................................................................................1192 Parking Brake Switch (Neutralizer): ON/OFF Signals Disagree...........................................1192 DDD1LD....................................................................................................1196 Remote Positioner Bucket Angle Set Switch: Switch is Kept Pressed for Long Time.......................1196 DDE5MA....................................................................................................1198 Emergency Steering Drive Switch: Malfunction..........................................................1198 DDK3KA....................................................................................................1200 Right FNR Switch: Disconnection.......................................................................1200 DDK3KB....................................................................................................1203 Right FNR Switch: Short Circuit.......................................................................1203 DDK4KA....................................................................................................1206 Joystick Steering FNR Switch: Disconnection...........................................................1206 DDK4KB....................................................................................................1209 Joystick Steering FNR Switch: Short Circuit...........................................................1209 DDK5L4....................................................................................................1212 Joystick Steering with Shift UP/DOWN Switch: ON/OFF Signals Disagree..................................1212 DDK6KA....................................................................................................1214 FNR Lever Switch: Disconnection.......................................................................1214 DDK6KB....................................................................................................1217 FNR Lever Switch: Short Circuit.......................................................................1217 DDT0L4....................................................................................................1220 Shift Mode Selector Switch: ON/OFF Signals Disagree...................................................1220 DDT4LD....................................................................................................1222 Transmission Cutoff Set Switch: Switch is Kept Pressed for Long Time..................................1222 DDW9LD....................................................................................................1224 Kickdown Switch: Switch is Kept Pressed for Long Time.................................................1224 DDWLLD....................................................................................................1226 Hold Switch: Switch is Kept Pressed Down for Long Time................................................1226 DDY0LD....................................................................................................1228 Load Meter Cancel Switch: Switch is Kept Pressed for Long Time........................................1228 DF10KA....................................................................................................1230 Transmission Shift Lever Switch: Disconnection........................................................1230 DF10KB....................................................................................................1233 Transmission Shift Lever Switch: Short Circuit........................................................1233 DGF1KA....................................................................................................1236 Transmission Oil Temperature Sensor: Disconnection....................................................1236 DGF1KB....................................................................................................1238 Transmission Oil Temperature Sensor: Short Circuit....................................................1238 DGH2KX....................................................................................................1240 Hydraulic Oil Temperature Sensor: Out-of-Input Signal Range...........................................1240 DGR2KA....................................................................................................1242 Rear Brake Oil Temperature Sensor: Disconnection......................................................1242 DGR2KX....................................................................................................1244 Rear Brake Oil Pressure Sensor: Out-of-Input Signal Range.............................................1244 DGT1KX....................................................................................................1246 Torque Converter Oil Temperature Sensor: Out-of-Input Signal Range....................................1246 DH21KA....................................................................................................1248 Work Equipment Pump Oil Pressure Sensor: Disconnection................................................1248 DH21KB....................................................................................................1250 Work Equipment Pump Oil Pressure Sensor: Short Circuit................................................1250 DHPCKX....................................................................................................1252 Lift Arm Cylinder Bottom Pressure Sensor: Out-of-Input Signal Range...................................1252 DHPDKX....................................................................................................1254 Lift Arm Cylinder Head Pressure Sensor: Out-of-Input Signal Range.....................................1254 DHT1KX....................................................................................................1256 Left Brake Pressure Sensor: Out-of-Input Signal.......................................................1256 DHT2L6....................................................................................................1258 Transmission Filter Clogging Sensor: Signal Disagrees with Operating and Stopped States of Engine.....1258 DK59KA....................................................................................................1260 Lift Arm EPC Lever Potentiometer (Main): Disconnection................................................1260 DK59KY....................................................................................................1263 Lift Arm EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line.........................1263 DK59L8....................................................................................................1266 Lift Arm EPC Lever Potentiometer (Main): Analog Signals Disagree......................................1266 DK5AKA....................................................................................................1270 Lift Arm EPC Lever Potentiometer (Sub): Disconnection.................................................1270 DK5AKY....................................................................................................1273 Lift Arm EPC Lever Potentiometer (Sub): Short Circuit with Power Supply LIne..........................1273 DK5BKA....................................................................................................1276 Bucket EPC Lever Potentiometer (Main): Disconnection..................................................1276 DK5BKY....................................................................................................1279 Bucket EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line...........................1279 DK5BL8....................................................................................................1282 Bucket EPC Lever Potentiometer (Main): Analog Signals Disagree........................................1282 DK5CKA....................................................................................................1285 Bucket EPC Lever Potentiometer (Sub): Disconnection...................................................1285 DK5CKY....................................................................................................1288 Bucket EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line............................1288 DK5DKA....................................................................................................1291 3-Spool Valve (Attachment) EPC Lever Potentiometer (Main): Disconnection..............................1291 DK5DKY....................................................................................................1294 3-Spool Valve (Attachment) EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line.......1294 DK5DL8....................................................................................................1296 3-Spool Valve (Attachment) EPC Lever Potentiometer (Main): Analog Signals Disagree....................1296 DK5EKA....................................................................................................1300 3-Spool Valve (Attachment) EPC Lever Potentiometer (Sub): Disconnection...............................1300 DK5EKY....................................................................................................1302 3-Spool Valve (Attachment) EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line........1302 DK5FKA....................................................................................................1304 Joystick Steering EPC Lever Potentiometer (Main): Disconnection.......................................1304 DK5FKY....................................................................................................1306 Joystick Steering EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line................1306 DK5GKA....................................................................................................1308 Joystick Steering EPC Lever Potentiometer (Sub): Disconnection........................................1308 DK5GKY....................................................................................................1310 Joystick Steering EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line.................1310 DK5FL8....................................................................................................1312 Joystick Steering EPC Lever Potentiometer (Main): Analog Signals Disagree.............................1312 DKA0KA....................................................................................................1316 Lift Arm Angle Sensor: Disconnection..................................................................1316 DKA0KX....................................................................................................1318 Lift Arm Angle Sensor: Out-of-Input Signal Range......................................................1318 DKA0KY....................................................................................................1322 Lift Arm Angle Sensor: Short Circuit with Power Supply Line...........................................1322 DKA0L0....................................................................................................1324 Lift Arm Angle Sensor: Double Meshing.................................................................1324 DLF1KA....................................................................................................1326 Transmission Input Shaft Speed Sensor: Disconnection..................................................1326 DLF1LC....................................................................................................1328 Transmission Input Shaft Speed Sensor: Speed Signals Disagree.........................................1328 DLT4KB....................................................................................................1330 Transmission Input Shaft Speed Sensor: Short Circuit..................................................1330 DLT4KX....................................................................................................1332 Transmission Output Shaft Speed Sensor: Out-of-Input Signal Range.....................................1332 DT20KB....................................................................................................1334 Transmission Cutoff Indicator Lamp: Short Circuit.....................................................1334 DUM1KB....................................................................................................1336 Remote Positioner Raise Set Indicator Lamp: Short Circuit.............................................1336 DUM2KB....................................................................................................1338 Remote Positioner Lower Set Indicator Lamp: Short Circuit.............................................1338 DV00KB....................................................................................................1340 Alarm Buzzer: Short Circuit...........................................................................1340 DW4PKA....................................................................................................1342 Lift Arm Raise EPC Solenoid: Disconnection............................................................1342 DW4PKB....................................................................................................1344 Lift Arm Raise EPC Solenoid: Short Circuit............................................................1344 DW4PKY....................................................................................................1346 Lift Arm Raise EPC Solenoid: Short Circuit with Power Supply Line.....................................1346 DW4QKA....................................................................................................1348 Lift Arm Lower EPC Solenoid: Disconnection............................................................1348 DW4QKB....................................................................................................1350 Lift Arm Lower EPC Solenoid: Short Circuit............................................................1350 DW4QKY....................................................................................................1352 Lift Arm Lower EPC Solenoid: Short Circuit with Power Supply Line.....................................1352 DW4RKA....................................................................................................1354 Bucket Tilt EPC Solenoid: Disconnection...............................................................1354 DW4RKB....................................................................................................1356 Bucket Tilt EPC Solenoid: Short Circuit...............................................................1356 DW4RKY....................................................................................................1358 Bucket Tilt EPC Solenoid: Short Circuit with Power Supply Line........................................1358 DW4SKA....................................................................................................1360 Buck Dump EPC Solenoid: Disconnection.................................................................1360 DW4SKB....................................................................................................1362 Bucket Dump EPC Solenoid: Short Circuit...............................................................1362 DW4SKY....................................................................................................1364 Bucket Dump EPC Solenoid: Short Circuit with Power Supply Line........................................1364 DW7BKA....................................................................................................1366 Fan Reverse Solenoid: Disconnection...................................................................1366 DW7BKB....................................................................................................1368 Fan Reverse Solenoid: Short Circuit...................................................................1368 DW7BKY....................................................................................................1370 Fan Reverse Solenoid: Short Circuit with Power Supply Line............................................1370 DW7DKA....................................................................................................1372 Hydraulic Drive Fan Neutral Solenoid: Disconnection...................................................1372 DW7DKB....................................................................................................1373 Hydraulic Drive Fan Neutral Solenoid: Short Circuit...................................................1373 DW7DKY....................................................................................................1374 Hydraulic Drive Fan Solenoid: Short Circuit with Power Supply Line....................................1374 DWM1KA....................................................................................................1376 Work Equipment Neutral Lock Solenoid: Disconnection...................................................1376 DWM1KB....................................................................................................1378 Work Equipment Neutral Lock Solenoid: Short Circuit...................................................1378 DWM1KY....................................................................................................1380 Work Equipment Neutral Lock Solenoid: Short Circuit with Power Supply Line............................1380 DWN6KA....................................................................................................1382 Lift Arm Raise Magnet Detent Solenoid: Disconnection..................................................1382 DWN6KB....................................................................................................1384 Lift Arm Raise Magnet Detent Solenoid: Short Circuit..................................................1384 DWN6KY....................................................................................................1386 Lift Arm Raise Magnet Detent Solenoid: Short Circuit with Power Supply Line...........................1386 DWN7KA....................................................................................................1388 Lift Arm Float Magnet Detent Solenoid: Disconnection..................................................1388 DWN7KB....................................................................................................1390 Lift Arm Float Magnet Detent Solenoid: Short Circuit..................................................1390 DWN7KY....................................................................................................1392 Lift Arm Float Magnet Detent Solenoid: Short Circuit with Power Supply Line...........................1392 DWN8KA....................................................................................................1394 Bucket Tilt Magnet Detent Solenoid: Disconnection.....................................................1394 DWN8KB....................................................................................................1396 Bucket Tilt Magnet Detent Solenoid: Short Circuit.....................................................1396 DWN8KY....................................................................................................1398 Bucket Tilt Magnet Detent Solenoid: Shorted with the Power Source.....................................1398 DX16KA....................................................................................................1400 Fan Pump EPC Solenoid: Disconnection..................................................................1400 DX16KB....................................................................................................1401 Fan Pump EPC Solenoid: Short Circuit..................................................................1401 DX16KY....................................................................................................1402 Fan Pump EPC Solenoid: Short Circuit with Power Supply Line...........................................1402 DXA1KA....................................................................................................1403 Pump PC-EPC Solenoid: Disconnection...................................................................1403 DXA1KB....................................................................................................1404 Pump PC-EPC Solenoid: Short Circuit...................................................................1404 DXH1KA....................................................................................................1406 Lockup ECMV Solenoid: Disconnection...................................................................1406 DXH1KB....................................................................................................1408 Lockup ECMV Solenoid: Short Circuit...................................................................1408 DXH1KY....................................................................................................1410 Lockup ECMV Solenoid: Short Circuit with Power Supply Line............................................1410 DXH4KA....................................................................................................1412 1st Clutch ECMV Solenoid: Disconnection...............................................................1412 DXH4KB....................................................................................................1414 1st Clutch ECMV Solenoid: Short Circuit...............................................................1414 DXH4KY....................................................................................................1416 1st Clutch ECMV Solenoid: Short Circuit with Power Supply Line........................................1416 DXH5KA....................................................................................................1418 2nd Clutch ECMV Solenoid: Disconnection...............................................................1418 DXH5KB....................................................................................................1420 2nd Clutch ECMV Solenoid: Short Circuit...............................................................1420 DXH5KY....................................................................................................1422 2nd Clutch ECMV Solenoid: Short Circuit with Power Supply Line........................................1422 DXH6KA....................................................................................................1424 3rd Clutch ECMV Solenoid: Disconnection...............................................................1424 DXH6KB....................................................................................................1426 3rd Clutch ECMV Solenoid: Short Circuit...............................................................1426 DXH6KY....................................................................................................1428 3rd Clutch ECMV Solenoid: Short Circuit with Power Supply Line........................................1428 DXH7KA....................................................................................................1430 R Clutch ECMV Solenoid: Disconnection.................................................................1430 DXH7KB....................................................................................................1432 R Clutch ECMV Solenoid: Short Circuit.................................................................1432 DXH7KY....................................................................................................1434 R Clutch ECMV Solenoid: Short Circuit with Power Supply Line..........................................1434 DXH8KA....................................................................................................1436 F Clutch ECMV Solenoid: Disconnection.................................................................1436 DXH8KB....................................................................................................1438 F Clutch ECMV Solenoid: Short Circuit.................................................................1438 DXH8KY....................................................................................................1440 F Clutch ECMV Solenoid: Short Circuit with Power Supply Line..........................................1440 DXHHKA....................................................................................................1442 4th Clutch ECMV Solenoid: Disconnection...............................................................1442 DXHHKB....................................................................................................1444 4th Clutch ECMV Solenoid: Short Circuit...............................................................1444 DXHHKY....................................................................................................1446 4th Clutch ECMV Solenoid: Short Circuit with Power Supply Line........................................1446 DXHJKA....................................................................................................1448 3-Spool Valve Extract EPC Solenoid: Disconnection.....................................................1448 DXHJKB....................................................................................................1449 3-Spool Valve Extract EPC Solenoid: Short Circuit.....................................................1449 DXHJKY....................................................................................................1450 3-Spool Valve Extract EPC Solenoid: Short Circuit with Power Supply Line..............................1450 DXHKKA....................................................................................................1452 3-Spool Valve Retract EPC Solenoid: Disconnection.....................................................1452 DXHKKB....................................................................................................1453 3-Spool Valve Retract EPC Solenoid: Short Circuit.....................................................1453 DXHKKY....................................................................................................1454 3-Spool Valve Retract EPC Solenoid: Short Circuit with Power Supply Line..............................1454 DXHLKA....................................................................................................1456 Joystick Steering Right EPC Solenoid: Disconnection...................................................1456 DXHLKB....................................................................................................1458 Joystick Steering Right EPC Solenoid: Short Circuit...................................................1458 DXHLKY....................................................................................................1461 Joystick Steering Right EPC Solenoid: Short Circuit with Power Supply Line............................1461 DXHMKA....................................................................................................1464 Joystick Steering Left EPC Solenoid: Disconnection....................................................1464 DXHMKB....................................................................................................1466 Joystick Steering Left EPC Solenoid: Short Circuit....................................................1466 DXHMKY....................................................................................................1469 Joystick Steering Left EPC Solenoid: Short Circuit with Power Supply Line.............................1469 TROUBLESHOOTING: E-MODE...................................................................................1472 Troubleshooting Electrical System.....................................................................1472 Information in Troubleshooting Table..............................................................1472 E-1.......................................................................................................1474 Engine Does Not Start.................................................................................1474 E-2.......................................................................................................1480 Wiper Does Not Operate................................................................................1480 E-3.......................................................................................................1484 Windshield Washer Does Not Operate....................................................................1484 E-4.......................................................................................................1488 Headlamp, Clearance Lamp, Tail Lamp, and License Lamp Do Not Light Up or Go Off.......................1488 E-5.......................................................................................................1496 Working Lamp Does Not Light Up or Go Off..............................................................1496 E-6.......................................................................................................1502 Turn Signal Lamp and Hazard Lamp Do Not Light Up or Go Off............................................1502 E-7.......................................................................................................1508 Brake Lamp Does Not Light or It Keeps Lighting Up.....................................................1508 E-8.......................................................................................................1512 Backup Lamp Does Not Light or It Keeps Lighting Up....................................................1512 E-9.......................................................................................................1514 Backup Buzzer Does Not Sound or It Keeps Sounding.....................................................1514 E-10......................................................................................................1516 Horn Does Not Sound or It Keeps Sounding..............................................................1516 E-11......................................................................................................1520 Alarm Buzzer Does Not Sound or It Keeps Sounding......................................................1520 E-12......................................................................................................1522 Air Conditioner Does Not Operate or Stop..............................................................1522 E-13......................................................................................................1526 KOMTRAX System Does Not Work Properly.................................................................1526 Lamp Display Section of KOMTRAX Terminal..........................................................1528 TROUBLESHOOTING: H-MODE...................................................................................1530 Troubleshooting Hydraulic and Mechanical Systems......................................................1530 Using Troubleshooting Chart.......................................................................1530 Failure Codes and Causes Table........................................................................1532 H-1.......................................................................................................1536 Machine Does Not Start................................................................................1536 H-2.......................................................................................................1538 Torque Converter Lockup is Not Switched OFF (Engine Stalls)...........................................1538 H-3.......................................................................................................1539 Torque Converter Lockup is Not Switched ON............................................................1539 H-4.......................................................................................................1540 Travel Speed is Slow, Thrusting Force is Weak, Uphill Traveling Power is Weak, Gear is Not Shifted....1540 H-5.......................................................................................................1542 Large Shocks When Starting and Shifting Gears.........................................................1542 H-6.......................................................................................................1543 Large Time Lag When Starting and Shifting Gear........................................................1543 H-7.......................................................................................................1544 Torque Converter Oil Temperature is High..............................................................1544 H-8.......................................................................................................1545 Steering Does Not Turn................................................................................1545 H-9.......................................................................................................1546 Steering Does Not Turn (Joystick Steering, if equipped)...............................................1546 H-10......................................................................................................1547 Steering Response is Poor.............................................................................1547 H-11......................................................................................................1548 Steering Turning Response is Poor (Joystick Steering, if Equipped)....................................1548 H-12......................................................................................................1549 Steering is Heavy.....................................................................................1549 H-13......................................................................................................1550 When Machine Turns, It Shakes or Jerks................................................................1550 H-14......................................................................................................1551 When Machine Turns, It Shakes or Jerks (Joystick Steering, if Equipped)...............................1551 H-15......................................................................................................1552 Wheel Brake Does Not Work or Does Not Work Well.......................................................1552 H-16......................................................................................................1553 Wheel Brake is Not Released or It Drags...............................................................1553 H-17......................................................................................................1554 Parking Brake Does Not Work or Does Not Work Well.....................................................1554 H-18......................................................................................................1555 Parking Brake is Not Released or It Drags.............................................................1555 H-19......................................................................................................1556 Lift Arm Does Not Rise................................................................................1556 H-20......................................................................................................1557 Lift Arm is Low or Rising Force is Insufficient.......................................................1557 H-21......................................................................................................1558 When Rising, Lift Arm Starts to Move Slowly at a Specific Height......................................1558 H-22......................................................................................................1558 Lift Arm Cylinder Cannot Hold Down Bucket (Bucket Floats).............................................1558 H-23......................................................................................................1558 Hydraulic Drifts of the Lift Arm Occur Often..........................................................1558 H-24......................................................................................................1559 Lift Arm Wobbles During Operation.....................................................................1559 H-25......................................................................................................1560 Bucket Does Not Tilt Back.............................................................................1560 H-26......................................................................................................1561 Bucket Speed is Low or Tilting-Back Force Is Insufficient.............................................1561 H-27......................................................................................................1562 Bucket Starts to Operate Slowly in the Midst of Tilting Back..........................................1562 H-28......................................................................................................1562 Bucket Cylinder Cannot Hold Down the Bucket...........................................................1562 H-29......................................................................................................1562 Hydraulic Drifts of the Bucket Occur Often............................................................1562 H-30......................................................................................................1563 Bucket Wobbles During Travel with Load................................................................1563 H-31......................................................................................................1563 During Operation of Machine, Engine Speed Drops Remarkably or Engine Stalls...........................1563 H-32......................................................................................................1563 Large Shocks When Work Equipment Starts and Stops.....................................................1563 H-33......................................................................................................1563 When Work Equipment Circuit is Relieved Singly, Other Work Equipment Moves............................1563 H-34......................................................................................................1564 ECSS Does Not Operate; Pitching and Bouncing Occur....................................................1564 50 DISASSEMBLY AND ASSEMBLY...................................................................................1565 HOW TO READ THIS MANUAL...................................................................................1570 Removal and Installation of Assemblies................................................................1570 Disassembly and Assembly of Assemblies................................................................1572 COATING MATERIALS LIST....................................................................................1574 SPECIAL TOOLS LIST........................................................................................1578 SKETCHES OF SPECIAL TOOLS.................................................................................1583 CONNECTOR REPAIR PROCEDURES...............................................................................1590 Stripping Insulation..................................................................................1590 Wire Inspection.......................................................................................1590 Contact Terminal Removal (HD30 Type)..................................................................1591 Crimping Contact Terminal (HD30 Type).................................................................1592 Insertion of Contact Terminal (HD30 Type).............................................................1593 Contact Terminal Removal (DT Type)....................................................................1594 Crimping Contact Terminal (DT Type)...................................................................1595 Insertion of Contact Terminal (DT Type)...............................................................1596 ENGINE AND COOLING SYSTEM.................................................................................1598 Engine................................................................................................1598 Removal...........................................................................................1598 Installation......................................................................................1604 Radiator..............................................................................................1606 Removal...........................................................................................1606 Installation......................................................................................1608 Air Aftercooler.......................................................................................1609 Removal...........................................................................................1609 Installation......................................................................................1610 Cooling Fan and Fan Motor.............................................................................1611 Removal...........................................................................................1611 Installation......................................................................................1613 Radiator Guard and Cooling Fan........................................................................1614 Removal...........................................................................................1614 Installation......................................................................................1617 Fuel Tank.............................................................................................1618 Removal...........................................................................................1618 Installation......................................................................................1620 Engine Hood...........................................................................................1621 Removal...........................................................................................1621 Installation......................................................................................1624 Fuel Supply Pump......................................................................................1625 Removal...........................................................................................1625 Installation......................................................................................1629 Cylinder Head.........................................................................................1631 Removal...........................................................................................1631 Installation......................................................................................1641 Fuel Injector.........................................................................................1647 Removal...........................................................................................1647 Installation......................................................................................1649 Engine Front Seal.....................................................................................1651 Removal...........................................................................................1651 Installation......................................................................................1653 Engine Rear Seal......................................................................................1656 Removal...........................................................................................1656 Installation......................................................................................1659 POWER TRAIN...............................................................................................1663 Torque Converter and Transmission Assembly............................................................1663 Removal...........................................................................................1663 Installation......................................................................................1670 Power Train...........................................................................................1672 Preparation.......................................................................................1672 Disassembly.......................................................................................1674 Assembly..........................................................................................1676 Input Transfer........................................................................................1678 Disassembly.......................................................................................1678 Assembly..........................................................................................1682 Torque Converter (Lockup Specification)...............................................................1687 Disassembly.......................................................................................1687 Assembly..........................................................................................1695 Torque Converter (Without Lockup).....................................................................1705 Disassembly.......................................................................................1705 Assembly..........................................................................................1712 Transmission..........................................................................................1720 Disassembly.......................................................................................1720 Assembly..........................................................................................1739 Transfer and Parking Brake Assembly...................................................................1760 Disassembly.......................................................................................1761 Assembly..........................................................................................1771 Front Axle............................................................................................1783 Removal...........................................................................................1783 Installation......................................................................................1785 Rear Axle.............................................................................................1786 Removal...........................................................................................1786 Installation......................................................................................1788 Front Differential....................................................................................1789 Removal...........................................................................................1789 Installation......................................................................................1790 Differential (with Limited Slip Differential).........................................................1791 Disassembly.......................................................................................1791 Assembly..........................................................................................1797 Differential (without Limited Slip Differential)......................................................1809 Disassembly.......................................................................................1809 Assembly..........................................................................................1815 Final Drive (Front and Rear)..........................................................................1824 Disassembly.......................................................................................1824 Assembly..........................................................................................1828 BRAKE SYSTEM..............................................................................................1833 Brakes (Front and Rear)...............................................................................1833 Removal...........................................................................................1833 Installation......................................................................................1835 Disassembly.......................................................................................1836 Assembly..........................................................................................1840 Slack Adjuster........................................................................................1844 Brake Accumulator Charge Valve........................................................................1845 UNDERCARRIAGE AND FRAME...................................................................................1846 Center Hinge Pin......................................................................................1846 Removal...........................................................................................1847 Installation......................................................................................1851 HYDRAULIC SYSTEM..........................................................................................1856 Hydraulic Tank........................................................................................1856 Removal...........................................................................................1856 Installation......................................................................................1860 Cooling Pump..........................................................................................1861 Removal...........................................................................................1861 Installation......................................................................................1862 Fan Pump..............................................................................................1863 Removal...........................................................................................1863 Installation......................................................................................1864 Work Equipment Pump...................................................................................1865 Removal...........................................................................................1865 Installation......................................................................................1867 Steering, Torque Converter Charge, and EPC Pump Assembly..............................................1868 Removal...........................................................................................1868 Installation......................................................................................1869 Work Equipment Valve..................................................................................1870 Removal...........................................................................................1870 Installation......................................................................................1873 Work Equipment Control Valve Assembly.................................................................1874 Disassembly and Assembly..........................................................................1874 Steering Cylinder.....................................................................................1878 Disassembly.......................................................................................1878 Assembly..........................................................................................1881 Lift Arm and Bucket Cylinder..........................................................................1883 Disassembly.......................................................................................1883 Assembly..........................................................................................1887 Steering Valve........................................................................................1892 Removal...........................................................................................1892 Installation......................................................................................1893 WORK EQUIPMENT............................................................................................1894 Work Equipment........................................................................................1894 Removal...........................................................................................1894 Installation......................................................................................1898 Counterweight (Large).................................................................................1900 Removal...........................................................................................1900 Installation......................................................................................1901 Counterweight (Small).................................................................................1902 Removal...........................................................................................1902 Installation......................................................................................1902 CAB AND ITS ATTACHMENTS...................................................................................1903 Cab (Separate Cab and Floor)..........................................................................1903 Removal...........................................................................................1903 Installation......................................................................................1910 Cab and Floor Frame (Cab-Floor Unit)..................................................................1911 Installation......................................................................................1916 Cab Glass (Stuck Glass)...............................................................................1917 Removal...........................................................................................1918 Installation......................................................................................1919 Operator Seat (Upper Seat)............................................................................1927 Storage Box.......................................................................................1927 Seat Pad and Backrest Upholstery..................................................................1927 Mechanical Lumbar Support.........................................................................1928 Armrests (if equipped)............................................................................1929 Backrest..........................................................................................1930 Backrest Adjustment...............................................................................1932 Seat Angle and Seat Depth Adjuster................................................................1933 Covers............................................................................................1935 Slide Rails.......................................................................................1936 Operator Seat (Suspension)............................................................................1937 Top Cover.........................................................................................1937 Front Cover.......................................................................................1937 Bellows...........................................................................................1938 Bowden Pull Wire and Handle (Vertical Shock Absorber Adjustment)..................................1940 Vertical Shock Absorber...........................................................................1944 Compressor........................................................................................1946 Height Level Controller...........................................................................1950 Compressed-Air Hoses..............................................................................1956 Bowden Pull Wires and Handle (Height Adjustment)..................................................1960 Pneumatic Spring..................................................................................1964 Air Tank for Additional Air Supply................................................................1966 Cable Harness.....................................................................................1968 Suspension System (Upper Part)....................................................................1970 Suspension System (Lower Part)....................................................................1974 Swinging Structure................................................................................1978 ELECTRICAL SYSTEM.........................................................................................1982 Engine Controller.....................................................................................1982 Removal...........................................................................................1982 Installation......................................................................................1982 Transmission Controller...............................................................................1983 Removal...........................................................................................1983 Installation......................................................................................1983 Work Equipment Controller.............................................................................1984 Removal...........................................................................................1984 Installation......................................................................................1984 KOMTRAX Terminal......................................................................................1985 Removal...........................................................................................1985 Installation......................................................................................1985 Air Conditioner Unit..................................................................................1986 Removal...........................................................................................1986 Installation......................................................................................1990 90 DIAGRAMS AND SCHEMATICS....................................................................................1991 HYDRAULIC SYSTEM..........................................................................................1993 Power Train Hydraulic Circuit.........................................................................1993 Without Lockup Clutch.............................................................................1993 With Lockup Clutch................................................................................1994 Brake Hydraulic Circuit...............................................................................1995 Without Forced Brake Cooling System...............................................................1995 With Forced Brake Cooling System..................................................................1996 Work Equipment........................................................................................1997 ELECTRICAL SYSTEM.........................................................................................1998 Air Conditioner Electrical Circuit....................................................................1998 Electrical Circuit Diagram (1/7)......................................................................1999 Electrical Circuit Diagram (2/7)......................................................................2000 Electrical Circuit Diagram (3/7)......................................................................2001 Electrical Circuit Diagram (4/7)......................................................................2002 Electrical Circuit Diagram (5/7)......................................................................2003 Electrical Circuit Diagram (6/7)......................................................................2004 Electrical Circuit Diagram (7/7)......................................................................2005 Connector List and Stereogram.........................................................................2006 Chassis...........................................................................................2006 Operator's Compartment............................................................................2007 Engine and Transmission...........................................................................2008
PLEASE NOTE:
⦁ This is the SAME MANUAL used by the dealerships to diagnose your vehicle
⦁ No waiting for couriers / posts as this is a PDF manual and you can download it within 2 minutes time once you make the payment.
⦁ Your payment is all safe and the delivery of the manual is INSTANT – You will be taken to the DOWNLOAD PAGE.
⦁ So have no hesitations whatsoever and write to us about any queries you may have : heydownloadss @gmail.com
1 review for KOMATSU WA500-6 WHEEL LOADER SERVICE REPAIR MANUAL – PDF Download
Add a review
Van Gunner –