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Komatsu WA450-6, WA480-6 GALEO (KA SPEC) 6600 Wheel Loader Shop Manual SEN00809-04 – PDF DOWNLOAD
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Komatsu WA450-6, WA480-6 GALEO (KA SPEC) 6600 Wheel Loader Shop Manual
SERIAL NUMBERS:
WA450-6 66001 and up
WA480-6 85001 and up
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Description
Komatsu WA450-6, WA480-6 GALEO (KA SPEC) 6600 Wheel Loader Shop Manual
FILE DETAILS:
Komatsu WA450-6, WA480-6 GALEO (KA SPEC) 6600 Wheel Loader Shop Manual
Brands: Komatsu
Equipment Type: Wheel Loader
Manuals Type: Shop Manual
Machine Model: WA450-6, WA480-6 GALEO (KA SPEC.)
Serial Number: 66001 and up, 85001 and up
Book Code: SEN00809-04
Language: English
Pages: 1596
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu WA450-6, WA480-6 GALEO (KA SPEC) 6600 Wheel Loader Shop Manual
How to read the shop manual:
1. Composition of shop manual:
This shop manual contains the necessary technical information for services performed in a workshop. For ease of understanding, the manual is divided into the following sections.
00. Index and foreword:
This section contains the index, foreword, safety and basic information. If any revision is made, the LIST OF REVISED PAGES will be added.
01. Specification:
This section explains the specifications of the machine.
10. Structure and function:
This section explains the structure and function of each component. It serves not only to give an understanding for the structure of each component, but also serves as reference material for troubleshooting.
20. Standard value table:
This section explains the standard values for new machine and judgement criteria for testing, adjusting, and troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting.
30. Testing and adjusting:
This section explains measuring tools and measuring methods for testing and adjusting, as well as the adjusting method of each part. The standard values and judgment criteria for “Testing and adjusting” are explained in “Standard value table”.
40. Troubleshooting:
This section explains how to find out failed parts and how to repair them. The troubleshooting is divided by failure modes. The “S mode” of the troubleshooting related to the engine may be also explained in the Chassis volume and Engine volume. In this case, see the Chassis volume.
50. Disassembly and assembly:
This section explains the special tools and procedures for removing, installing, disassembling, and assembling each component, as well as precautions for them. In addition, tightening torque, and quantity and weight of coating material, oil, grease, and coolant necessary for the work are also explained.
60. Maintenance standard:
This section gives maintenance standard values of each component. The maintenance standard sub-section explains the criteria and remedies for disassembly and service.
80. Appendix:
This section explains the structure, function, testing, adjusting, and troubleshooting for the equipment not classifiable in other sections.
90. Diagrams and drawings (chassis volume) /Repair and replacement of parts (engine volume):
- Chassis volume
This section gives hydraulic circuit diagrams and electrical circuit diagrams. - Engine volume
This section explains the method of remanufacturing and repairing engine and replacing parts.
TABLE OF CONTENTS:
Komatsu WA450-6, WA480-6 GALEO (KA SPEC) 6600 Wheel Loader Shop Manual
MAIN MENU................................................................................................................................................ 0 COVER PAGE............................................................................................................................................... 1 00 Index and foreword.................................................................................................................................... 3 Index................................................................................................................................................ 3 Composition of shop manual....................................................................................................................... 4 Table of contents................................................................................................................................ 6 Foreword and general information..................................................................................................................... 21 Safety notice.................................................................................................................................... 22 How to read the shop manual...................................................................................................................... 27 Explanation of terms for maintenance standard.................................................................................................... 29 Handling electric equipment and hydraulic component.............................................................................................. 31 Precautions when carrying out operation.......................................................................................................... 46 Method of disassembling and connecting push-pull type coupler.................................................................................... 49 Standard tightening torque table................................................................................................................. 52 Conversion table................................................................................................................................. 56 01 Specification......................................................................................................................................... 63 Specification and technical data..................................................................................................................... 63 Specification and technical data................................................................................................................. 65 Specification dimension drawing.............................................................................................................. 65 Specifications............................................................................................................................... 66 Weight table................................................................................................................................. 70 Table of fuel, coolant and lubricants........................................................................................................ 72 10 Structure, function and maintenance standard.......................................................................................................... 75 Engine and cooling system............................................................................................................................ 75 Engine and cooling system........................................................................................................................ 76 Engine mount and transmission mount.............................................................................................................. 76 Cooling system................................................................................................................................... 77 Cooling fan pump................................................................................................................................. 78 Cooling fan motor................................................................................................................................ 86 Power train.......................................................................................................................................... 93 Power train...................................................................................................................................... 95 Power train.................................................................................................................................. 95 Power train system diagram................................................................................................................... 96 Drive shaft.................................................................................................................................. 98 Power train piping diagram................................................................................................................... 99 Torque converter............................................................................................................................. 100 Transmission................................................................................................................................. 108 Flow control valve........................................................................................................................... 125 Transmission control valve................................................................................................................... 126 ECMV......................................................................................................................................... 128 Main relief valve and torque converter relief valve.......................................................................................... 134 Axle......................................................................................................................................... 136 Differential................................................................................................................................. 140 Limited slip differential.................................................................................................................... 145 Final drive.................................................................................................................................. 152 Steering system...................................................................................................................................... 161 Steering system.................................................................................................................................. 162 Steering piping diagram...................................................................................................................... 162 Steering column.............................................................................................................................. 163 Steering pump................................................................................................................................ 164 Steering valve............................................................................................................................... 177 Orbit-roll valve............................................................................................................................. 192 Stop valve................................................................................................................................... 196 Steering relief valve........................................................................................................................ 197 Steering cylinder............................................................................................................................ 198 Emergency steering motor..................................................................................................................... 200 Emergency steering pump...................................................................................................................... 201 Brake system......................................................................................................................................... 203 Brake system..................................................................................................................................... 204 Brake piping diagram......................................................................................................................... 204 Charge valve................................................................................................................................. 205 Brake valve.................................................................................................................................. 212 Accumulator (for brake)...................................................................................................................... 217 Slack adjuster............................................................................................................................... 218 Brake........................................................................................................................................ 220 Parking brake control........................................................................................................................ 225 Parking brake................................................................................................................................ 226 Parking brake solenoid valve................................................................................................................. 228 Emergency parking brake release valve........................................................................................................ 230 Undercarriage and frame.............................................................................................................................. 233 Undercarriage and frame.......................................................................................................................... 234 Tires............................................................................................................................................ 238 Hydraulic system, Part 1............................................................................................................................. 241 Hydraulic system, Part 1......................................................................................................................... 242 Hydraulic piping diagram......................................................................................................................... 242 Work equipment control lever linkage............................................................................................................. 245 Hydraulic tank................................................................................................................................... 246 Power train pump................................................................................................................................. 248 Work equipment pump.............................................................................................................................. 250 Work equipment control valve..................................................................................................................... 270 CLSS............................................................................................................................................. 281 Each function and operation of each valve........................................................................................................ 286 Hydraulic system, Part 2............................................................................................................................. 301 Hydraulic system, Part 2......................................................................................................................... 302 PPC valve.................................................................................................................................... 302 Accumulator (for PPC circuit)................................................................................................................ 308 Accumulator (for ECSS)....................................................................................................................... 309 Work equipment....................................................................................................................................... 311 Work equipment................................................................................................................................... 312 Work equipment linkage....................................................................................................................... 312 Bucket....................................................................................................................................... 315 Bucket positioner and boom kick-out.......................................................................................................... 316 Work equipment cylinder...................................................................................................................... 322 Cab and its attachments.............................................................................................................................. 325 Cab and its attachments.......................................................................................................................... 327 Cab.......................................................................................................................................... 327 Air conditioner.............................................................................................................................. 328 Electrical system, Part 1............................................................................................................................ 347 Electrical system, Part 1........................................................................................................................ 348 Machine monitor system....................................................................................................................... 348 Machine monitor.............................................................................................................................. 353 Electrical system, Part 2............................................................................................................................ 375 Electrical system, Part 2........................................................................................................................ 376 Electrical system (Transmission controller system)........................................................................................... 376 Transmission controller...................................................................................................................... 400 Electrical system, Part 3............................................................................................................................ 403 Electrical system, Part 3........................................................................................................................ 404 Electric transmission control................................................................................................................ 404 Combination switch........................................................................................................................... 406 Kickdown switch and hold switch.............................................................................................................. 408 KOMTRAX terminal system...................................................................................................................... 410 Engine starting circuit...................................................................................................................... 412 Engine stopping circuit...................................................................................................................... 414 Preheating circuit........................................................................................................................... 415 Engine power mode selector circuit........................................................................................................... 416 Engine output derating function.............................................................................................................. 417 Automatic warm-up function................................................................................................................... 417 Parking brake circuit........................................................................................................................ 418 Sensor....................................................................................................................................... 420 20 Standard value table.................................................................................................................................. 429 Standard service value table......................................................................................................................... 430 Standard value table for engine.................................................................................................................. 430 Standard value table for chassis................................................................................................................. 431 30 Testing and adjusting................................................................................................................................. 441 Testing and adjusting, Part 1........................................................................................................................ 441 Testing and adjusting, Part 1.................................................................................................................... 443 Tools for testing, adjusting, and troubleshooting............................................................................................ 443 Measuring engine speed....................................................................................................................... 446 Measuring exhaust gas color.................................................................................................................. 448 Measuring exhaust temperature................................................................................................................ 449 Adjusting valve clearance.................................................................................................................... 451 Measuring compression pressure............................................................................................................... 453 Measuring blow-by pressure................................................................................................................... 455 Measuring engine oil pressure................................................................................................................ 456 Measuring intake air (boost) pressure........................................................................................................ 458 Handling fuel system equipment............................................................................................................... 459 Releasing residual pressure in fuel system................................................................................................... 459 Testing fuel pressure........................................................................................................................ 460 Testing fuel return and leak amount.......................................................................................................... 461 Bleeding air from fuel circuit............................................................................................................... 464 Testing fuel circuit for leakage............................................................................................................. 466 Handling of reduced cylinder mode operation.................................................................................................. 467 Handling of no injection cranking operation.................................................................................................. 467 Handling controller voltage circuit.......................................................................................................... 468 Testing and adjusting air conditioner compressor belt tension................................................................................ 471 Testing and adjusting alternator belt tension................................................................................................ 472 Adjusting transmission speed sensor.......................................................................................................... 473 Measuring directional lever.................................................................................................................. 475 Measuring and adjusting power train oil pressure............................................................................................. 476 Procedure for flushing torque converter and transmission hydraulic circuit................................................................... 491 Method of moving machine when transmission valve is broken................................................................................... 492 Testing and adjusting steering stop valve.................................................................................................... 495 Testing and adjusting steering wheel......................................................................................................... 497 Testing steering oil pressure................................................................................................................ 499 Bleeding air from steering circuit........................................................................................................... 502 Testing and adjusting, Part 2........................................................................................................................ 505 Testing and adjusting, Part 2.................................................................................................................... 507 Testing hydraulic drive fan.................................................................................................................. 507 Bleeding air from hydraulic drive fan circuit................................................................................................ 509 Measuring brake pedal........................................................................................................................ 511 Measuring brake performance.................................................................................................................. 513 Testing and adjusting accumulator charge pressure............................................................................................ 514 Testing wheel brake oil pressure............................................................................................................. 515 Measuring wear of wheel brake disc........................................................................................................... 517 Bleeding air from wheel brake circuit........................................................................................................ 518 Releasing residual pressure in brake accumulator circuit..................................................................................... 519 Testing parking brake performance............................................................................................................ 519 Measuring parking brake oil pressure......................................................................................................... 520 Manual release method for parking brake...................................................................................................... 523 Measuring and adjusting work equipment control lever......................................................................................... 524 Measuring and adjusting work equipment PPC oil pressure...................................................................................... 525 Measuring and adjusting work equipment oil pressure.......................................................................................... 528 Bleeding air from work equipment circuit..................................................................................................... 532 Releasing residual pressure in work equipment circuit........................................................................................ 533 Testing and adjusting bucket positioner...................................................................................................... 534 Testing and adjusting boom kick out.......................................................................................................... 536 Checking proximity switch operation pilot lamp............................................................................................... 537 Procedure for testing diodes................................................................................................................. 538 Preparation work for troubleshooting for electrical system................................................................................... 539 Starting KOMTRAX terminal operations......................................................................................................... 542 Indicator lamps of KOMTRAX terminal.......................................................................................................... 546 Adjusting machine monitor.................................................................................................................... 549 Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor....................................................... 550 Testing and adjusting, Part 3........................................................................................................................ 553 Testing and adjusting, Part 3.................................................................................................................... 554 Special functions of machine monitor (EMMS).................................................................................................. 554 Pm-clinic inspection table................................................................................................................... 617 40 Troubleshooting....................................................................................................................................... 621 Failure code table and fuse locations................................................................................................................ 621 Failure code table and fuse locations............................................................................................................ 622 Failure code table........................................................................................................................... 622 Fuse locations............................................................................................................................... 634 General information on troubleshooting............................................................................................................... 639 General information on troubleshooting........................................................................................................... 640 Points to remember when troubleshooting...................................................................................................... 640 Sequence of events in troubleshooting........................................................................................................ 641 Testing before troubleshooting............................................................................................................... 642 Classification and procedures of troubleshooting............................................................................................. 643 Information contained in troubleshooting table............................................................................................... 646 Connection table for connector pin numbers................................................................................................... 648 T-branch box and T-branch adapter table...................................................................................................... 671 Troubleshooting by failure code (Display of code), Part 1............................................................................................ 675 Troubleshooting by failure code (Display of code), Part 1........................................................................................ 677 Failure code [1500L0] (TORQFLOW transmission: Double meshing)................................................................................ 677 Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON)........................................................ 678 Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF)........................................................ 680 Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON)........................................................ 682 Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)........................................................ 684 Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)...................................................... 686 Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF)...................................................... 688 Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON)...................................................... 690 Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF)...................................................... 692 Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON)...................................................... 694 Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF)...................................................... 696 Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON)...................................................... 698 Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF)...................................................... 700 Failure code [2F00MA] (Parking brake: Malfunction)........................................................................................... 702 Failure code [2G43ZG] (Accumulator: Low oil pressure)........................................................................................ 704 Failure code [44K0L4] (Bucket positioner: ON/OFF signals disagree)........................................................................... 706 Troubleshooting by failure code (Display of code), Part 2............................................................................................ 709 Troubleshooting by failure code (Display of code), Part 2........................................................................................ 712 Failure code [AA1ANX] (Air cleaner: Clogging)................................................................................................ 712 Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine).......................................................... 714 Failure code [AB00MA] (Alternator: Malfunction).............................................................................................. 716 Failure code [B@BAZG] (Rotation derating by low engine oil pressure)......................................................................... 718 Failure code [B@BAZK] (Engine oil: Low level)................................................................................................ 721 Failure code [B@BCNS] (Coolant: Overheating)................................................................................................. 722 Failure code [B@BCZK] (Coolant: Low level)................................................................................................... 724 Failure code [B@C7NS] (Brake oil: Overheating)............................................................................................... 726 Failure code [b@CENS] (Torque converter oil: Overheating).................................................................................... 728 Failure code [B@CENS] (Torque converter oil: Overheating).................................................................................... 730 Failure code [B@HANS] (Hydraulic oil: Overheating)........................................................................................... 732 Failure code [CA111] (Abnormality in engine controller)...................................................................................... 734 Failure code [CA115] (Engine Ne or Bkup speed sensor error).................................................................................. 737 Failure code [CA122] (Charge pressure sensor high error)..................................................................................... 738 Failure code [CA123] (Charge pressure sensor low error)...................................................................................... 740 Failure code [CA131] (Throttle sensor high error)............................................................................................ 742 Failure code [CA132] (Throttle sensor low error)............................................................................................. 744 Failure code [CA135] (Engine oil pressure sensor high error)................................................................................. 746 Failure code [CA141] (Engine oil pressure sensor low error).................................................................................. 748 Failure code [CA144] (Coolant sensor high error)............................................................................................. 750 Failure code [CA145] (Coolant sensor low error).............................................................................................. 752 Failure code [CA153] (Charge temperature sensor high error).................................................................................. 754 Failure code [CA154] (Charge temperature sensor low error)................................................................................... 756 Failure code [CA187] (Sensor power supply 2 low error)....................................................................................... 758 Failure code [CA221] (Atmospheric pressure sensor high error)................................................................................ 759 Failure code [CA222] (Atmospheric pressure sensor low error)................................................................................. 761 Failure code [CA227] (Sensor power supply 2 high error)...................................................................................... 762 Failure code [CA234] (Engine overspeed)...................................................................................................... 764 Failure code [CA238] (Ne speed sensor power supply error).................................................................................... 766 Troubleshooting by failure code (Display of code), Part 3............................................................................................ 769 Troubleshooting by failure code (Display of code), Part 3........................................................................................ 772 Failure code [CA263] (Fuel temperature sensor high error).................................................................................... 772 Failure code [CA265] (Fuel temperature sensor low error)..................................................................................... 774 Failure code [CA271] (PCV1 Short circuit).................................................................................................... 776 Failure code [CA272] (PCV1 Disconnection).................................................................................................... 778 Failure code [CA273] (PCV2 Short circuit).................................................................................................... 780 Failure code [CA274] (PCV2 Disconnection).................................................................................................... 782 Failure code [CA322] (Injector #1 (L/B #1) open/short error)................................................................................. 784 Failure code [CA323] (Injector #5 (L/B #5) open/short error)................................................................................. 786 Failure code [CA324] (Injector #3 (L/B #3) open/short error)................................................................................. 788 Failure code [CA325] (Injector #6 (L/B #6) open/short error)................................................................................. 790 Failure code [CA331] (Injector #2 (L/B #2) open/short error)................................................................................. 792 Failure code [CA332] (Injector #4 (L/B #4) open/short error)................................................................................. 794 Failure code [CA342] (Calibration code inconsistency)........................................................................................ 796 Failure code [CA351] (Injectors drive circuit error)......................................................................................... 797 Failure code [CA352] (Sensor power supply 1 low error)....................................................................................... 799 Failure code [CA386] (Sensor power supply 1 high error)...................................................................................... 800 Failure code [CA431] (Idle validation switch error).......................................................................................... 802 Failure code [CA432] (Idle validation action error).......................................................................................... 804 Failure code [CA441] (Battery voltage low error)............................................................................................. 806 Failure code [CA442] (Battery voltage high error)............................................................................................ 809 Failure code [CA449] Common rail pressure high error 2....................................................................................... 811 Failure code [CA451] (Common rail pressure sensor high error)................................................................................ 812 Failure code [CA452] (Common rail pressure sensor low error)................................................................................. 814 Failure code [CA553] (Common rail pressure high error 1)..................................................................................... 815 Failure code [CA554] (Common rail pressure sensor in-range error)............................................................................ 816 Failure code [CA559] (Supply pump pressure very low error)................................................................................... 817 Failure code [CA689] (Engine Ne speed sensor error).......................................................................................... 821 Failure code [CA731] (Engine Bkup speed sensor phase error).................................................................................. 823 Failure code [CA757] (All continuous data lost error)........................................................................................ 823 Failure code [CA778] (Engine Bkup speed sensor error)........................................................................................ 824 Failure code [CA1228] (EGR valve servo error 1).............................................................................................. 826 Failure code [CA1625] (EGR valve servo error 2).............................................................................................. 827 Failure code [CA1633] (KOMNET datalink timeout error)........................................................................................ 828 Failure code [CA2185] (Throttle sensor supply voltage high error)............................................................................ 830 Failure code [CA2186] (Throttle sensor power supply low error)............................................................................... 831 Troubleshooting by failure code (Display of code), Part 4............................................................................................ 833 Troubleshooting by failure code (Display of code), Part 4........................................................................................ 835 Failure code [CA2249] (Supply pump pressure very low error 2)................................................................................ 835 Failure code [CA2271] (EGR valve lift sensor high error)..................................................................................... 836 Failure code [CA2272] (EGR valve lift sensor low error)...................................................................................... 838 Failure code [CA2351] (EGR valve solenoid operation short circuit)........................................................................... 839 Failure code [CA2352] (EGR valve solenoid operation disconnect).............................................................................. 841 Failure code [CA2555] (Intake heater relay disconnection error).............................................................................. 842 Failure code [CA2556] (Intake heater relay short circuit error).............................................................................. 844 Failure code [D150KA] (Emergency steering relay: Disconnection).............................................................................. 846 Failure code [D150KB] (Emergency steering relay: Short circuit).............................................................................. 848 Failure code [D150KY] (Emergency steering relay: Short circuit with power supply line)....................................................... 850 Failure code [D160KA] (Backup lamp relay: Disconnection)..................................................................................... 852 Failure code [D160KB] (Backup lamp relay: Short circuit)..................................................................................... 854 Failure code [D160KZ] (Backup lamp relay: Disconnection or shortcircuit)..................................................................... 856 Failure code [D191KA] (Joystick steering neutral safety relay: Disconnection)............................................................... 858 Failure code [D191KB] (Joystick steering neutral safety relay: Short circuit)................................................................ 860 Failure code [D191KY] (Joystick steering neutral safety relay: Short circuit with power supply line)......................................... 862 Failure code [D192KA] (ECSS solenoid: Disconnection)......................................................................................... 864 Failure code [D192KB] (ECSS solenoid: Short circuit)......................................................................................... 865 Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line).................................................................. 866 Failure code [D193KA] (Joystick steering solenoid cut relay: Disconnection).................................................................. 867 Failure code [D193KB] (Joystick steering solenoid cut relay: Short circuit).................................................................. 869 Failure code [D193KY] (Joystick steering solenoid cut relay: Short circuit with power supply line)........................................... 871 Failure code [D5ZHKA] (Terminal C signal: Disconnection)..................................................................................... 873 Failure code [D5ZHKB] (Terminal C signal: Short circuit)..................................................................................... 877 Failure code [D5ZHKZ] (Terminal C signal: Disconnection or short circuit).................................................................... 880 Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or stopped state)............................................. 885 Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)...................................................................... 888 Failure code [DAF3KK] (Machine monitor: Low source voltage (input)).......................................................................... 890 Failure code [DAF5KP] (Machine monitor: Low output voltage).................................................................................. 892 Failure code [DAFRKR] (CAN communication with machine monitor: Defective communication (Abnormality in target component system))............ 896 Troubleshooting by failure code (Display of code), Part 5............................................................................................ 899 Troubleshooting by failure code (Display of code), Part 5........................................................................................ 901 Failure code [DAQ0KK] (Transmission controller: Low source voltage).......................................................................... 901 Failure code [DAQ0KT] (Transmission controller: Abnormality in controller)................................................................... 903 Failure code [DAQ2KK] (Transmission controller load power supply line: Low source voltage (input))........................................... 904 Failure code [DAQ9KQ] (Transmission controller model selection:Disagreement of model selection signals)...................................... 906 Failure code [DAQRKR] (CAN communication with transmission controller: Defective communication (Abnormality in target component system))..... 907 Failure code [DAQRMA] (Transmission controller option setting: Malfunction)................................................................. 909 Failure code [DB2RKR] (CAN communication with engine controller: Defective communication (Abnormality in target component system)........... 910 Failure code [DB90KK] Work equipment controller: Low source voltage (input).................................................................. 912 Failure code [DB90KT] Work equipment controller: Abnormality in controller................................................................... 914 Failure code [DB92KK] Work equipment controller load power supply line: Low source voltage (input)........................................... 915 Failure code [DB95KX] Work equipment controller power supply output: Out of input signal range.............................................. 917 Failure code [DB99KQ] (Work equipment controller model selection: Disagreement in model selection signals).................................. 920 Failure code [DB9RKR] CAN communication with work equipment controller: Defective communication (Abnormality in target component system)).... 921 Failure code [DB9RMA] (Work equipment controller option setting: Malfunction)............................................................... 923 Failure code [DB9RMC] (CAN communication with transmission controller: Defective operation).................................................. 924 Failure code [DD15LD] __ switch (Panel switch 1): Switch is kept pressed for long time....................................................... 928 Failure code [DD16LD] __ switch (Panel switch 2): Switch is kept pressed for long time....................................................... 930 Failure code [DD17LD] < switch (Panel switch 3): Switch is kept pressed for long time........................................................ 932 Failure code [DD18LD] > switch (Panel switch 4): Switch is kept pressed for long time........................................................ 934 Failure code [DD1ALD] Remote positioner raise/lower set switch (raise): Switch is kept pressed for long time................................ 936 Failure code [DD1BLD] Remote positioner raise/lower set switch (lower): Switch is kept pressed for long time................................. 938 Failure code [DD1CLD] Load meter subtotal switch: Switch is kept pressed for long time....................................................... 940 Failure code [DD1FLD] Load meter mode selector switch (A/B): Switch is kept pressed for long time............................................ 942 Failure code [DD1GLD] Load meter mode selector switch (+/–): Switch is kept pressed for long time............................................ 944 Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed for long time)............................................. 946 Failure code [DD1NLD] (Fan reverse switch: Switch is kept pressed for long time)............................................................. 948 Failure code [DD1NL4] (Fan automatic reverse switch: Switch is kept pressed for long time)................................................... 950 Failure code [DDB6L4] (Parking brake switch (Neutralizer): ON/OFF signals disagree).......................................................... 952 Failure code [DDD1LD] (Remote positioner bucket angle set switch: Switch is kept pressed for long time)..................................... 956 Troubleshooting by failure code (Display of code), Part 6............................................................................................ 959 Troubleshooting by failure code (Display of code), Part 6........................................................................................ 962 Failure code [DDE5MA] (Emergency steering drive switch:Malfunction).......................................................................... 962 Failure code [DDK3KA] (Right FNR switch: Disconnection)...................................................................................... 964 Failure code [DDK4KA] (Joystick steering FNR switch: Disconnection).......................................................................... 967 Failure code [DDK5L4] (Joystick steering shift-up/down switch: ON/OFF signals disagree)...................................................... 970 Failure code [DDK6KA] (FNR lever switch: Disconnection)...................................................................................... 972 Failure code [DDK6KB] (FNR lever switch: Short circuit)...................................................................................... 976 Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree).................................................................. 978 Failure code [DDT4LD] (Transmission cut-off set switch: Switch is kept pressed for long time)................................................ 980 Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time)............................................................... 982 Failure code [DDWLLD] (Hold switch: Switch is kept pressed for longtime)..................................................................... 984 Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time)....................................................... 986 Failure code [DF10KA] (Transmission shift lever switch: Disconnected)........................................................................ 988 Failure code [DF10KB] (Transmission shift lever switch: Short circuit)....................................................................... 992 Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnected)................................................................... 994 Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit)................................................................... 996 Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range).......................................................... 998 Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnected).....................................................................1000 Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range).........................................................1002 Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal range)...................................................1004 Troubleshooting by failure code (Display of code), Part 7............................................................................................1007 Troubleshooting by failure code (Display of code), Part 7........................................................................................1010 Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal range)......................................................1010 Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out ofinput signal range).........................................................1012 Failure code [DHT1KX] (Transmission cut-off pressure sensor: Out of input signal range)..........................................................1014 Failure code [DHT8KA] (Steering pump pressure sensor: Disconnection)............................................................................1016 Failure code [DHT8KB] (Steering pump pressure sensor: Short circuit).............................................................................1018 Failure code [DK59KA] (Lift arm EPC lever potentiometer (Main): Disconnection)..................................................................1020 Failure code [DK59KY] (Lift arm EPC lever potentiometer (Main): Short circuit with power supply line)............................................1023 Failure code [DK59L8] (Lift arm EPC lever potentiometer (Main): Analog signals disagree).........................................................1026 Failure code [DK5AKA] (Lift arm EPC lever potentiometer (Sub): Disconnection)....................................................................1029 Failure code [DK5AKY] (Lift arm EPC lever potentiometer (Sub): Short circuit with power supply line).............................................1032 Failure code [DK5BKA] (Bucket EPC lever potentiometer (Main): Disconnection)....................................................................1035 Failure code [DK5BKY] (Bucket EPC lever potentiometer (Main): Short circuit with power supply line)..............................................1038 Failure code [DK5BL8] (Bucket EPC lever potentiometer (Main): Analog signals disagree)...........................................................1041 Failure code [DK5CKA] (Bucket EPC lever potentiometer (Sub): Disconnection).....................................................................1044 Failure code [DK5CKY] (Bucket EPC lever potentiometer (Sub): Short circuit with power supply line)...............................................1047 Failure code [DK5DKA] (3-spool valve (attachment) EPC lever potentiometer (Main): Disconnection).................................................1050 Failure code [DK5DKY] (3-spool valve (attachment) EPC lever potentiometer (Main): Short circuit with power supply line)..........................1053 Failure code [DK5DL8] (3-spool valve (attachment) EPC lever potentiometer (Main): Analog signals disagree).......................................1055 Failure code [DK5EKA] (3-spool valve (attachment) EPC lever potentiometer (Sub): Disconnection)..................................................1058 Failure code [DK5EKY] (3-spool valve EPC lever potentiometer (Sub): Short circuit with power supply line).......................................1062 Troubleshooting by failure code (Display of code), Part 8............................................................................................1065 Troubleshooting by failure code (Display of code), Part 8........................................................................................1067 Failure code [DK5FKA] (Joystick steering EPC lever potentiometer (Main): Disconnection)......................................................1067 Failure code [DK5FKY] (Joystick steering EPC lever potentiometer (Main): Short circuit with power supply line)...............................1070 Failure code [DK5GKA] (Joystick steering EPC lever potentiometer (Sub): Disconnection).......................................................1072 Failure code [DK5GKY] (Joystick steering EPC lever potentiometer (Sub): Short circuit with power supply line)................................1075 Failure code [DK5FL8] (Joystick steering EPC lever potentiometer (Main): Analog signals disagree)............................................1077 Failure code [DKA0KA] (Lift arm angle sensor: Disconnection).................................................................................1080 Failure code [DKA0KY] (Lift arm angle sensor: Short circuit with power supply line)..........................................................1082 Failure code [DKA0L0] (Lift arm angle sensor: Double meshing)................................................................................1084 Failure code [DLT3KA] (Transmission output shaft speed sensor: Disconnection)................................................................1086 Failure code [DLT3LC] (Transmission output shaft speed sensor: Out of input signal range)....................................................1088 Failure code [DT20KB] (Transmission cut-off indicator lamp: Short circuit)...................................................................1090 Failure code [DUM1KB] (Remote positioner raise set indicator lamp: Short circuit)...........................................................1092 Failure code [DUM2KB] (Remote positioner lower set indicator lamp: Short circuit)............................................................1094 Failure code [DV00KB] (Alarm buzzer: Short circuit)..........................................................................................1096 Failure code [DW4PKA] (Lift arm raise EPC solenoid: Disconnection)...........................................................................1098 Failure code [DW4PKB] (Lift arm raise EPC solenoid: Short circuit)...........................................................................1100 Failure code [DW4PKY] (Lift arm raise EPC solenoid: Short circuit with power supply line)....................................................1102 Failure code [DW4QKA] (Lift arm lower EPC solenoid: Disconnection)...........................................................................1104 Failure code [DW4QKB] (Lift arm lower EPC solenoid: Short circuit)...........................................................................1105 Failure code [DW4QKY] (Lift arm lower EPC solenoid: Short circuit with power supply line)....................................................1106 Failure code [DW4RKA] (Bucket tilt EPC solenoid: Disconnection)..............................................................................1108 Failure code [DW4RKB] (Bucket tilt EPC solenoid: Short circuit)..............................................................................1109 Failure code [DW4RKY] (Bucket tilt EPC solenoid: Short circuit with power supply line).......................................................1110 Troubleshooting by failure code (Display of code), Part 9............................................................................................1113 Troubleshooting by failure code (Display of code), Part 9........................................................................................1115 Failure code [DW4SKA] (Bucket dump EPC solenoid: Disconnection)..............................................................................1115 Failure code [DW4SKB] (Bucket dump EPC solenoid: Short circuit)..............................................................................1116 Failure code [DW4SKY] (Bucket dump EPC solenoid: Short circuit withpower supply line)........................................................1117 Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)..................................................................................1119 Failure code [DW7BKB] (Fan reverse solenoid: Short circuit)..................................................................................1120 Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line)...........................................................1121 Failure code [DW7DKA] (Hydraulic drive fan neutral solenoid: Disconnection)..................................................................1123 Failure code [DW7DKB] (Hydraulic drive fan neutral solenoid: Short circuit)..................................................................1124 Failure code [DW7DKY] (Hydraulic drive fan neutral solenoid: Short circuit with power supply line)...........................................1125 Failure code [DWM1KA] (Work equipment neutral lock solenoid: Disconnection)..................................................................1126 Failure code [DWM1KB] (Work equipment neutral lock solenoid: Short circuit)..................................................................1128 Failure code [DWM1KY] (Work equipment neutral lock solenoid: Short circuit with power supply line)...........................................1130 Failure code [DWN6KA] (Lift arm raise magnet detent solenoid: Disconnection).................................................................1132 Failure code [DWN6KB] (Lift arm raise magnet detent solenoid: Short circuit).................................................................1134 Failure code [DWN6KY] (Lift arm raise magnet detent solenoid: Short circuit with power supply line)..........................................1136 Failure code [DWN7KA] (Lift arm float magnet detent solenoid: Disconnection).................................................................1138 Failure code [DWN7KB] (Lift arm float magnet detent solenoid: Short circuit).................................................................1140 Failure code [DWN7KY] (Lift arm float magnet detent solenoid: Short circuit with power supply line)..........................................1142 Failure code [DWN8KA] (Bucket tilt magnet detent solenoid: Disconnection)....................................................................1144 Failure code [DWN8KB] (Bucket tilt magnet detent solenoid: Short circuit)....................................................................1146 Failure code [DWN8KY] (Bucket tilt magnet detent solenoid: Shorted with the power source)....................................................1148 Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection).................................................................................1150 Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit).................................................................................1151 Failure code [DX16KY] (Fan pump EPC solenoid: Short circuit with power supply line)..........................................................1152 Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection)..................................................................................1154 Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit)..................................................................................1156 Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line)...........................................................1158 Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection)..............................................................................1160 Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit)..............................................................................1162 Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit withpower supply line)........................................................1164 Troubleshooting by failure code (Display of code), Part 10...........................................................................................1167 Troubleshooting by failure code (Display of code), Part 10.......................................................................................1170 Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection)..............................................................................1170 Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit)..............................................................................1172 Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line).......................................................1174 Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection)..............................................................................1176 Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit)..............................................................................1178 Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line).......................................................1180 Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)................................................................................1182 Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit)................................................................................1184 Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line).........................................................1186 Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection)................................................................................1188 Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)................................................................................1190 Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line).........................................................1192 Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)..............................................................................1194 Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit)..............................................................................1196 Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line).......................................................1198 Failure code [DXHJKA] (3-spool valve extend EPC solenoid: Disconnection).....................................................................1200 Failure code [DXHJKB] (3-spool valve extend EPC solenoid: Short circuit).....................................................................1202 Failure code [DXHJKY] (3-spool valve extend EPC solenoid: Short circuit with power supply line)..............................................1204 Failure code [DXHKKA] (3-spool valve retract EPC solenoid: Disconnection)....................................................................1206 Failure code [DXHKKB] (3-spool valve retract EPC solenoid: Short circuit)....................................................................1208 Failure code [DXHKKY] (3-spool valve retract EPC solenoid: Short circuit with power supply line).............................................1210 Failure code [DXHLKA] (Joystick steering right EPC solenoid: Disconnection)..................................................................1212 Failure code [DXHLKB] (Joystick steering right EPC solenoid: Short circuit)..................................................................1214 Failure code [DXHLKY] (Joystick steering right EPC solenoid: Short circuit with power supply line)...........................................1216 Failure code [DXHMKA] (Joystick steering left EPC solenoid: Disconnection)...................................................................1218 Failure code [DXHMKB] (Joystick steering left EPC solenoid: Short circuit)...................................................................1220 Failure code [DXHMKY] (Joystick steering left EPC solenoid: Short circuit with power supply line)............................................1222 Troubleshooting of electrical system (E-mode)........................................................................................................1225 Troubleshooting of electrical system (E-mode)....................................................................................................1227 Before carrying out troubleshooting for electrical system....................................................................................1227 Information in troubleshooting table.........................................................................................................1230 E-1 Engine does not start....................................................................................................................1232 E-2 Wiper does not operate...................................................................................................................1238 E-3 Windshield washer does not operate.......................................................................................................1242 E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not lightup or go off...........................................................1245 E-5 Working lamp does not light up or go off.................................................................................................1253 E-6 Turn signal lamp and hazard lamp do not light up or go off...............................................................................1258 E-7 Brake lamp does not light or it keeps lighting up........................................................................................1264 E-8 Backup lamp does not light or it keeps lighting up.......................................................................................1266 E-9 Backup buzzer does not sound or it keeps sounding........................................................................................1268 E-10 Horn does not sound or it keeps sounding................................................................................................1270 E-11 Alarm buzzer does not sound or it keeps sounding........................................................................................1272 E-12 Air conditioner does not operate or stop................................................................................................1274 E-13 The KOMTRAX system does not work properly...............................................................................................1277 Troubleshooting of hydraulic and mechanical system (H-mode)..........................................................................................1281 Troubleshooting of hydraulic and mechanical system (H-mode)......................................................................................1283 Method of using troubleshooting chart........................................................................................................1283 Table of failure modes and causes............................................................................................................1286 H-1 The machine does not start...............................................................................................................1290 H-2 Torque converter lockup is not switched off (engine stalls) [Machinewith lockup clutch (if equipped)]....................................1292 H-2 Torque converter lockup is not switched off (engine stalls) [Machinewith lockup clutch (if equipped)]....................................1292 H-2 Torque converter lockup is not switched off (engine stalls) [Machine with lockup clutch (if equipped)]...................................1292 H-3 Torque converter lockup is not switched on [Machine with lockup clutch (if equipped)]....................................................1293 H-4 The travel speed is slow, the thrusting force is weak, the uphill traveling power is weak, and the gear is not shifted...................1294 H-5 Shocks are large at the times of starting and shifting gear..............................................................................1296 H-6 Time lag is large at the times of starting and shifting gear.............................................................................1298 H-7 The torque converter oil temperature is high.............................................................................................1300 H-8 Steering does not turn...................................................................................................................1301 H-9 Steering does not turn [Machine with joystick steering (if equipped)]....................................................................1302 H-10 Steering response is low................................................................................................................1303 H-11 Turning, response of steering is poor [machine with joystick steering (if equipped)]....................................................1304 H-12 Steering is heavy.......................................................................................................................1305 H-13 When machine turns, it shakes or makes large shocks.....................................................................................1306 H-14 When machine turns, it shakes or makes large shocks [machine with joystick steering (if equipped)]......................................1307 H-15 The wheel brake does not work or does not work well.....................................................................................1308 H-16 The wheel brake is not released or it drags.............................................................................................1309 H-17 The parking brake does not work or does not work well...................................................................................1310 H-18 The parking brake is not released or it drags (including emergency release system)......................................................1311 H-19 Lift arm does not rise..................................................................................................................1312 H-20 Lift arm speed is low or rising force of lift arm is insufficient.......................................................................1313 H-21 When rising, the lift arm comes to move slowly at specific height.......................................................................1314 H-22 The lift arm cylinder cannot hold down the bucket (Bucket floats).......................................................................1314 H-23 Hydraulic drifts of the lift arm is large...............................................................................................1314 H-24 The lift arm wobbles during operation...................................................................................................1314 H-25 Bucket does not tilt back...............................................................................................................1315 H-26 Bucket speed is low or tilting back force is insufficient...............................................................................1316 H-27 The bucket comes to operate slowly in the midst of tilting-back.........................................................................1317 H-28 The bucket cylinder cannot hold down the bucket.........................................................................................1317 H-29 Hydraulic drifts of the bucket is large.................................................................................................1317 H-30 The bucket wobbles during travel with cargo (The work equipment valve is set to “HOLD”).................................................1317 H-31 Lift arm and bucket control levers do not move smoothly and are heavy...................................................................1318 H-32 During operation of the machine, engine speed lowers remarkablyor engine stalls.........................................................1319 H-33 Large shock is made when work equipment starts and stops................................................................................1319 H-34 When work equipment circuit is relieved singly, other work equipment moves..............................................................1319 H-35 ECSS does not operate, and pitching, bouncing occur.....................................................................................1320 Troubleshooting of engine (S-mode)...................................................................................................................1323 Troubleshooting of engine (S-mode)...............................................................................................................1325 Method of using troubleshooting chart............................................................................................................1325 S-1 Starting performance is poor.............................................................................................................1328 S-2 Engine does not start....................................................................................................................1330 S-3 Engine does not pick up smoothly.........................................................................................................1334 S-4 Engine stops during operation............................................................................................................1335 S-5 Engine does not rotate smoothly..........................................................................................................1336 S-6 Engine lacks output (or lacks power).....................................................................................................1337 S-7 Exhaust smoke is black (Incomplete combustion)...........................................................................................1338 S-8 Oil is consumed much (or exhaust gas color is blue)......................................................................................1340 S-9 Engine oil becomes contaminated quickly..................................................................................................1341 S-10 Fuel consumption is excessive...........................................................................................................1342 S-11 Coolant contains oil (blows back or reduces)............................................................................................1343 S-12 Oil pressure drops......................................................................................................................1344 S-13 Oil level rises (Water, fuel in oil)....................................................................................................1345 S-14 Coolant temperature rises too high (Overheating)........................................................................................1347 S-15 Abnormal noise is made..................................................................................................................1348 S-16 Vibration is excessive..................................................................................................................1349 50 Disassembly and assembly..............................................................................................................................1351 General information on disassembly andassembly.......................................................................................................1351 General information on disassembly and assembly..................................................................................................1352 How to read this manual..........................................................................................................................1352 Coating materials list...........................................................................................................................1354 Special tools list...............................................................................................................................1357 Sketches of special tools........................................................................................................................1361 Engine and cooling system............................................................................................................................1373 Engine and cooling system........................................................................................................................1374 Removal and installation of engine assembly..................................................................................................1374 Removal and installation of hood.............................................................................................................1378 Removal and installation of radiator assembly................................................................................................1381 Removal and installation of aftercooler assembly.............................................................................................1384 Removal and installation of oil cooler assembly..............................................................................................1386 Removal and installation of cooling fan and drive motor assembly.............................................................................1388 Removal and installation of fuel supply pump assembly........................................................................................1391 Removal and installation of fuel injector assembly...........................................................................................1396 Removal and installation of cylinder head assembly...........................................................................................1401 Removal and installation of fuel tank assembly...............................................................................................1412 Power train, Part 1..................................................................................................................................1417 Power train, Part 1..............................................................................................................................1418 Removal and installation of torque converter and transmission assembly.......................................................................1418 Disassembly and assembly of torque converter assembly (Standard specification)...............................................................1424 Disassembly and assembly of torque converter assembly (Lockup specification).................................................................1428 Disassembly and assembly of transmission assembly............................................................................................1435 Disassembly and assembly of transmission clutch pack assembly................................................................................1449 Disassembly and assembly of parking brake assembly...........................................................................................1466 Power train, Part 2..................................................................................................................................1475 Power train, Part 2..............................................................................................................................1476 Removal and installation of front axle assembly..............................................................................................1476 Removal and installation of rear axle assembly...............................................................................................1478 Disassembly and assembly of axle housing assembly............................................................................................1484 Disassembly and assembly of differential assembly............................................................................................1493 Undercarriage and frame..............................................................................................................................1513 Undercarriage and frame..........................................................................................................................1514 Removal and installation of centerhinge pin..................................................................................................1514 Removal and installation of counterweight....................................................................................................1522 Hydraulic system.....................................................................................................................................1525 Hydraulic system.................................................................................................................................1526 Removal and installation of steering demand valve assembly.......................................................................................1526 Removal and installation of work equipment valve assembly........................................................................................1529 Removal and installation of brake charge valve assembly..........................................................................................1532 Removal and installation of hydraulic tank assembly..............................................................................................1533 Removal and installation ofsteering and power train pump assembly................................................................................1535 Removal and installation of workequipment and cooling fan pump assembly..........................................................................1537 Work equipment.......................................................................................................................................1541 Work equipment...................................................................................................................................1542 Removal and installation of work equipment assembly..........................................................................................1542 Cab and its attachments..............................................................................................................................1547 Cab and its attachments..........................................................................................................................1548 Removal and installation of operator's cab and floor frame assembly..........................................................................1548 Removal and installation of operator's cab glass (stuck glass)...............................................................................1552 Disassembly and assembly of operator's seat assembly.........................................................................................1560 Electrical system....................................................................................................................................1571 Electrical system................................................................................................................................1572 Removal and installation of air conditioner unit assembly....................................................................................1572 Removal and installation of engine controller assembly.......................................................................................1576 Removal and installation of transmission controller assembly.................................................................................1577 Removal and installation of KOMTRAX controller assembly......................................................................................1578 90 Diagrams and drawings.................................................................................................................................1581 Hydraulic diagrams and drawings......................................................................................................................1581 Hydraulic diagrams and drawings..................................................................................................................1582 Power train hydraulic circuit diagram............................................................................................................1582 Hydraulic circuit diagram........................................................................................................................1585 Electrical diagrams and drawings.....................................................................................................................1588 Electrical diagrams and drawings.................................................................................................................1590 Electrical circuit diagram (1/2).............................................................................................................1590 Electrical circuit diagram (2/2).............................................................................................................1592 Connector arrangement diagram................................................................................................................1594
KOMATSU WA450-6, WA480-6 GALEO (KA SPEC) 6600 WHEEL LOADER SHOP MANUAL SEN00809-04 – PDF DOWNLOAD:
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