###### **WA600-6 Wheel Loader: A Paragon of Construction Efficiency**

The WA600-6 Wheel Loader stands as an undisputed titan of construction machinery, meticulously engineered to transcend expectations in the most demanding work environments. Its robust design, exceptional performance, and unwavering reliability make it an indispensable asset for any project seeking unrivaled productivity and efficiency.

Beneath the hood lies a formidable engine, a testament to the relentless pursuit of power and torque. This finely tuned powerhouse delivers extraordinary thrust, effortlessly powering through the most challenging tasks. Precision-engineered transmissions and drivelines ensure seamless transfers of this immense force, translating into rapid acceleration and optimized fuel consumption.

The WA600-6's hydraulic system represents the pinnacle of engineering prowess, boasting unparalleled responsiveness and control. State-of-the-art valves and components work in perfect harmony, enabling operators to execute precise movements with exceptional finesse and minimal effort. The result is an unprecedented level of productivity and operator satisfaction.

At the heart of the WA600-6 lies an advanced operator's cab, designed to maximize comfort, visibility, and control. Ergonomically positioned controls and a spacious layout create an environment conducive to extended work sessions without fatigue. Advanced instrumentation and intuitive displays provide instant access to critical information, empowering operators with real-time insights into the machine's performance.

The WA600-6's robust undercarriage is crafted from high-strength steel, providing an unwavering foundation for tackling demanding terrain. Durable tires and a sophisticated suspension system work in unison to ensure excellent traction, stability, and ground clearance, enabling the loader to navigate uneven surfaces with ease.

Safety is paramount in the design of the WA600-6. Its ROPS/FOPS-certified cab offers exceptional protection from falling debris and rollovers, ensuring operator safety in even the most hazardous environments. Advanced braking systems, backup alarms, and emergency stop switches further enhance the machine's safety credentials.

The WA600-6 Wheel Loader is not merely a machine; it is an embodiment of engineering excellence, representing the relentless pursuit of innovation and performance. Its unwavering reliability, exceptional efficiency, and unparalleled operator comfort make it the ultimate choice for construction professionals seeking the highest levels of productivity and profitability.

Komatsu WA600-6 Wheel Loader Workshop Repair Service Manual

This is a COMPLETE Service and Repair Manual for your Komatsu WA600-6 Wheel Loader. It covers every single detail. All models, and all engines are included.

This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! Detailed illustrations, exploded diagrams, drawings and photos guide you through every service repair procedure. This manual can be viewed on any computer, as well as zoomed and printed. All repair procedures are covered A-Z. This manual for Komatsu WA600-6 Wheel Loader makes any repair job easy to do with very easy to follow step-by-step instructions & pictures on all areas of repair.

Fixing problems in your vehicle is a do-it-approach with the this Repair Manual for Komatsu WA600-6 Wheel Loader as they contain comprehensive instructions and procedures on how to fix the problems in your ride. Repair Manuals can come in handy especially when you have to do immediate repair. The durability of your vehicle/bike is unquestionable but you also know that no matter how tough they are, constant use can cause them to deteriorate. When this happens, and ultimately it will, you will have to replace them. Some car/bike parts are very simple to mount and do not require professional help. By having a trusty repair manual you not only save money but you also get to experience the fun of do-it-yourself projects. A repair manual comes with comprehensive details regarding technical data, diagrams, a complete list of car parts and pictures. Even the most novice can easily follow the step-by-step guides which are made simple by the illustrations and drawings. You can find a complete list of accessories that can further enhance the performance of your engine. This Repair Manual for Komatsu WA600-6 Wheel Loader can save you a lot of time. These packages are complete with all the information needs. You will surely enjoy browsing through the pages and learning how to repair the different parts. It makes you up-to-date and more knowledge. Now, you dont have to rely on your mechanic for the simplest repair. You can do it at the comfort of your garage. All pages are printable, so print off what you need and take it with you into the garage or workshop. This manual will never get dirty and rip as you can keep it safely on your PC and print the pages you need in matter of seconds.

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Komatsu WA600-6 Wheel Loader
===========
SERVICE REPAIR MANUAL COVERS:
Table of contents
00 Index and foreword
Index
SEN00398-05
Composition of shop manual .............................2
Table of contents................................................4
Foreword and general information
SEN00415-01
Safety notice ......................................................2
How to read the shop manual............................7
Explanation of terms for maintenance standard ......................................................................9
Handling electric equipment and hydraulic component ........................................................... 11
How to read electric wire code........................... 23
Precautions when carrying out operation .......... 26
Method of disassembling and connecting push-pull type coupler ........................................... 29
Standard tightening torque table........................ 32
Conversion table................................................ 36
01 Specification
Specification and technical data
SEN00400-02
Specification and technical data ............................2
Specification dimension drawing........................2
Specifications.....................................................3
Weight table ....................................................... 10
Table of fuel, coolant and lubricants .................. 12
10 Structure, function and maintenance standard
Engine and cooling system
SEN00402-01
Engine and cooling system ...................................2
Engine mount and transmission mount .............2
Cooling system ..................................................6
Cooling fan pump............................................... 10
Cooling fan motor .............................................. 18
Power train, Part 1
SEN00403-02
Power train, Part 1.................................................2
Power train.........................................................2
Power train system diagram ..............................3
Torque converter and transmission piping diagram .................................................................4
Torque converter................................................6
Modulation clutch............................................... 15
Torque converter regulator valve ....................... 16
Transmission...................................................... 18
Transfer.............................................................. 38
Transmission control valve ................................ 40
ECMV ................................................................ 43
Main relief valve and torque converter relief valve .................................................................. 50
Lubrication relief valve ....................................... 52
Power train, Part 2
SEN02455-00
Power train, Part 2.................................................2
Torque converter oil cooler ................................2
Torque converter oil filter ...................................3
Drive shaft..........................................................5
Center support ...................................................6
Axle....................................................................8
Differential.......................................................... 12
Limited slip differential ....................................... 21
Final drive .......................................................... 26
4
WA600-600 Index and foreword
SEN00398-05
SEN00404-01
Steering system
Steering system.....................................................4
Steering piping diagram.....................................4
Steering column.................................................6
Joystick steering lever linkage...........................7
Joystick EPC valve ............................................8
Lock valve..........................................................9
Steering valve .................................................... 10
Rotary valve....................................................... 13
Steering control valve ........................................ 16
Two-way restrictor valve .................................... 32
Stop valve .......................................................... 33
Steering pump ................................................... 34
Steering cylinder ................................................ 48
Emergency steering piping diagram .................. 49
Diverter valve..................................................... 50
Emergency steering pump................................. 58
Brake system
SEN00405-01
Brake system ........................................................2
Brake piping diagram.........................................2
Brake .................................................................4
Brake valve........................................................8
Accumulator charge valve ................................. 16
EPC relief valve ................................................. 22
Accumulator (for brake) ..................................... 24
Slack adjuster .................................................... 26
Parking brake .................................................... 30
Parking brake solenoid valve............................. 32
Emergency parking brake release valve ........... 34
Brake cooling pump........................................... 35
Undercarriage and frame
SEN00406-00
Undercarriage and frame ......................................2
Axle mount.........................................................2
Center hinge pin ................................................7
Hydraulic system, Part 1
SEN00407-01
Hydraulic system, Part 1 .......................................2
Hydraulic piping diagram ...................................2
Work equipment control lever linkage ...............4
Hydraulic tank....................................................6
Work equipment hydraulic pump .......................8
Hydraulic system, Part 2
SEN02456-00
Hydraulic system, Part 2 .......................................2
Control valve......................................................2
CLSS ................................................................. 16
Each function and operation of each valve........ 21
Accumulator (for PPC circuit) ............................ 36
Triple pump........................................................ 37
Work equipment
SEN00408-01
Work equipment ....................................................2
Work equipment linkage ....................................2
Bucket................................................................6
Bucket positioner and boom kick-out.................8
Work equipment lubrication ...............................9
Cab and its attachments
SEN00409-01
Cab and its attachments........................................2
ROPS cab..........................................................2
WA600-6
5SEN00398-05
00 Index and foreword
4
Air conditioner....................................................Electrical system, Part 1
SEN01009-01
Electrical system, Part 1........................................2
Machine monitor system....................................2
Machine monitor ................................................8
Electrical system, Part 2
SEN00410-02
Electrical system, Part 2........................................2
Work equipment control system ........................2
Transmission controller system ......................... 38
Electrical system, Part 3
SEN00411-02
Electrical system, Part 3........................................2
Electric transmission control ..............................2
Engine starting/stopping circuit..........................4
Parking brake circuit ..........................................7
Sensor ............................................................... 11
VHMS controller related..................................... 33
Work equipment electric lever ........................... 37
20 Standard value table
Standard service value table
SEN00552-01
Standard service value table .................................2
Standard service value table for engine.............2
Standard service value table for chassis ...........3
30 Testing and adjusting
Testing and adjusting, Part 1
SEN00553-01
Testing and adjusting, Part 1 .................................3
Tools for testing, adjusting, and troubleshooting......................................................................3
Measuring engine speed ...................................6
Measuring exhaust gas color.............................8
Measuring exhaust temperature ........................9
Adjusting valve clearance .................................. 11
Testing compression pressures ......................... 13
Measuring blow-by pressure.............................. 16
Measuring engine oil pressure........................... 17
Measuring intake air (boost) pressure ............... 18
Handling fuel system equipment........................ 19
Releasing residual pressure in fuel system ....... 19
Testing fuel pressures........................................ 20
Testing return rate and leakage ......................... 21
Bleeding air from fuel circuit .............................. 24
Testing leakage in fuel system........................... 25
Handling reduced cylinder mode operation ....... 26
Handling no-injection cranking operation........... 26
Handling controller voltage circuit...................... 27
Replacing and adjusting alternator and air conditioner compressor belt tension .................... 28
Adjusting modulation clutch speed sensor and speed sensor................................................. 29
Measuring directional lever (Steering wheel specification) ...................................................... 31
Testing and adjusting power train oil pressure......................................................................... 32
Flushing procedure for torque converter and transmission hydraulic circuit............................ 46
Method of moving machine when transmission valve is broken.............................................. 48
Adjusting steering stop valve ............................. 50
Testing and adjusting, Part 2
SEN00554-01
Testing and adjusting, Part 2 .................................3
Measuring operating effort of AJSS lever (AJSS specification) ...............................................3
Testing and adjusting AJSS lever angle sensor and frame angle sensor (AJSS specification) 4
6
WA600-600 Index and foreword
SEN00398-05
6
Testing and adjusting steering stopper bolt (AJSS specification) ............................................Testing and adjusting steering wheel (Steering wheel specification).......................................8
Testing steering oil pressure.............................. 10
Bleeding air from steering cylinder circuit.......... 14
Testing hydraulic drive fan ................................. 15
Bleeding air from hydraulic drive fan circuit....... 18
Measuring brake pedal ...................................... 20
Measuring brake performance........................... 21
Testing and adjusting accumulator charge pressure ............................................................... 22
Testing wheel brake oil pressure ....................... 24
Measuring wear of wheel brake disc ................. 26
Bleeding air from wheel brake circuit................. 27
Releasing residual pressure in brake accumulator circuit ....................................................... 28
Testing parking brake performance ................... 29
Measuring parking brake oil pressure ............... 30
Testing wear of parking brake disc .................... 33
Method of releasing parking brake manually ..... 34
Measuring and adjusting work equipment control lever .......................................................... 35
Measuring work equipment oil pressure............ 36
Bleeding air from work equipment circuit........... 41
Releasing residual pressure in work equipment circuit ........................................................... 42
Moving machine for removing operator cab ...... 43
Testing and adjusting bucket positioner............. 45
Testing and adjusting lift arm position detecting lever ............................................................. 47
Checking proximity switch operation indication lamp .............................................................. 48
Preparations for work on troubleshooting of electric system ................................................... 49
Procedure for testing diodes.............................. 53
Testing and adjusting, Part 3
SEN00555-01
Testing and adjusting, Part 3.................................2
Special functions of machine monitor (EMMS)........................................................................4
Testing and adjusting, Part 4
SEN00556-01
Testing and adjusting, Part 4.................................2
Special functions of machine monitor (EMMS)........................................................................2
VHMS controller initial setting procedure .......... 15
Precautions for replacing VHMS controller........ 35
Pm-click inspection table ................................... 41
40 Troubleshooting
General information on troubleshooting
SEN00557-00
General information on troubleshooting ................2
Points to remember when troubleshooting ........2
Sequence of events in troubleshooting .............3
Testing before troubleshooting ..........................4
Classification and procedures of troubleshooting....................................................................5
Connection table for connector pin numbers .....8
T-branch box and T-branch adapter table ......... 31
Troubleshooting by failure code (Display of code), Part 1
SEN00558-01
Troubleshooting by failure code (Display of code), Part 1...........................................................3
Failure codes list................................................3
Before carrying out troubleshooting for electrical system........................................................ 16
Information contained in troubleshooting table ........................................................................ 18
Failure code [1500L0] (TORQFLOW transmission : Double meshing).................................... 20
Failure code [15B0NX] (Transmission filter: Clogged)............................................................. 22
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON) .... 24
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF) ... 26
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON).... 28
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF)... 30
WA600-6
7SEN00398-05
00 Index and foreword
Failure code [15SEL1] (ECMV (1): When command current is OFF, fill signal is ON) ............ 32
Failure code [15SELH] (ECMV (1): When command current is ON, fill signal is OFF) ........... 34
Failure code [15SFL1] (ECMV (2): When command current is OFF, fill signal is ON)............. 36
Failure code [15SFLH] (ECMV (2): When command current is ON, fill signal is OFF)............ 38
Failure code [15SGL1] (ECMV (3): When command current is OFF, fill signal is ON) ............ 40
Failure code [15SGLH] (ECMV (3): When command current is ON, fill signal is OFF) ........... 42
Failure code [15SHL1] (ECMV (4): When command current is OFF, fill signal is ON) ............ 44
Failure code [15SHLH] (ECMV (4): When command current is ON, fill signal is OFF) ........... 46
Failure code [15W0NT] (Transmission modulation clutch: Overheating)................................. 48
Failure code [2F00MA] (Parking brake: Malfunction) .............................................................. 49
Failure code [2G42ZG] (Front accumulator: Low oil pressure)................................................ 52
Troubleshooting by failure code (Display of code), Part 2
SEN00559-01
Troubleshooting by failure code (Display of code), Part 2...........................................................4
Failure code [2G43ZG] (Rear accumulator: Low oil pressure) ................................................4
Failure code [44K0L4] (Bucket positioner: ON/OFF signals disagree) ....................................6
Failure code [A000N1] (or VHMS_LED display: n2 o 01) (Engine: Overrun) ....................8
Failure code [AA1ANX] (Air cleaner: Clogging) ....................................................................... 10
Failure code [AB00L6] (Alternator: Signal disagrees with operating state of engine).............. 12
Failure code [AB00MA] (Alternator: Malfunction) .................................................................... 14
Failure code [B@BAZG] (Rotation derating by low engine oil pressure)................................. 16
Failure code [B@BAZK] (Engine oil: Low level) ...................................................................... 18
Failure code [B@BCNS] (Engine overheating)........................................................................ 20
Failure code [B@BCZK] (Coolant: Low level).... 22
Failure code [B@C7NS] (Brake oil: Overheating) ................................................................... 24
Failure code [B@CENS] (Torque converter oil: Overheating) ................................................. 26
Failure code [B@GAZK] (Battery electrolyte: Low level) ......................................................... 28
Failure code [B@HANS] (Hydraulic oil: Overheating) ............................................................. 30
Failure code [CA111] (Abnormality in engine controller).......................................................... 32
Failure code [CA115] (Engine Ne or Bkup speed sensor error) .............................................. 34
Failure code [CA122] (Charge pressure sensor high error)..................................................... 36
Failure code [CA123] (Charge pressure sensor low error) ...................................................... 38
Failure code [CA131] (Throttle sensor high error) ................................................................... 40
Failure code [CA132] (Throttle sensor low error)..................................................................... 42
Failure code [CA135] (Engine oil pressure sensor high error)................................................. 44
Failure code [CA141] (Engine oil pressure sensor low error) .................................................. 46
Failure code [CA144] (Coolant temperature sensor high error)............................................... 48
Failure code [CA145] (Coolant temperature sensor low error) ................................................ 50
Failure code [CA153] (Charge temperature sensor high error) ............................................... 52
Failure code [CA154] (Charge temperature sensor low error)................................................. 54
Failure code [CA187] (Sensor power supply 2 low error) ........................................................ 55
Failure code [CA212] (Engine oil temperature sensor high error) ........................................... 56
Failure code [CA213] (Engine oil temperature sensor low error)............................................. 58
Failure code [CA221] (Atmospheric pressure sensor high error) ............................................ 60
Failure code [CA222] (Atmospheric pressure sensor low error).............................................. 62
Failure code [CA227] (Sensor power supply 2 high error)....................................................... 64
Troubleshooting by failure code (Display of code), Part 3
SEN00560-00
Troubleshooting by failure code (Display of code), Part 3...........................................................3
Failure code [CA234] (Engine overspeed).........3
Failure code [CA238] (Ne speed sensor power supply error)..................................................4
Failure code [CA263] (Fuel temperature sensor high error) ....................................................6
Failure code [CA265] (Fuel temperature sensor low error) .....................................................8
Failure code [CA271] (PCV1 Short circuit) ........ 10
Failure code [CA272] (PCV1 Disconnection)..... 12
Failure code [CA273] (PCV2 Short circuit) ........ 14
Failure code [CA274] (PCV2 Disconnection)..... 16
Failure code [CA322] (Injector #1 (L/B #1) open/short error) .................................................. 18
Failure code [CA323] (Injector #5 (L/B #5) open/short error) .................................................. 20
8
WA600-600 Index and foreword
SEN00398-05
Failure code [CA324] (Injector #3 (L/B #3) open/short error) .................................................. 22
Failure code [CA325] (Injector #6 (L/B #6) open/short error) .................................................. 24
Failure code [CA331] (Injector #2 (L/B #2) open/short error) .................................................. 26
Failure code [CA332] (Injector #4 (L/B #4) open/short error) .................................................. 28
Failure code [CA342] (Calibration code inconsistency)........................................................... 30
Failure code [CA351] (Injectors drive circuit error) .................................................................. 32
Failure code [CA352] (Sensor power supply 1 low error) ........................................................ 34
Failure code [CA386] (Sensor power supply 1 high error) ...................................................... 36
Failure code [CA431] (Idle validation switch error).................................................................. 38
Failure code [CA432] (Idle validation action error) .................................................................. 40
Failure code [CA441] (Battery voltage low error) .................................................................... 40
Failure code [CA442] (Battery voltage high error) ................................................................... 41
Failure code [CA449] Common rail pressure high error 2 ....................................................... 41
Failure code [CA451] (Common rail pressure sensor high error)............................................ 42
Failure code [CA452] (Common rail pressure sensor low error) ............................................. 44
Failure code [CA553] (Common rail pressure high error 1)..................................................... 45
Failure code [CA559] (Supply pump pressure very low error)................................................. 46
Failure code [CA689] (Engine Ne speed sensor error) ........................................................... 50
Failure code [CA731] (Engine Bkup speed sensor phase error) ............................................. 52
Failure code [CA757] (All continuous data lost error) .............................................................. 53
Failure code [CA778] (Engine Bkup speed sensor error) ........................................................ 54
Failure code [CA1228] (EGR valve servo error 1)................................................................... 56
Failure code [CA1625] (EGR valve servo error 2)................................................................... 57
Failure code [CA1626] (Bypass valve solenoid current high error) ......................................... 58
Failure code [CA1627] (Bypass valve solenoid current low error)........................................... 60
Failure code [CA1628] (Bypass valve servo error 1) ............................................................... 61
Failure code [CA1629] (Bypass valve servo error 2) ............................................................... 62
Failure code [CA1631] (Bypass valve lift sensor high error).................................................... 64
Failure code [CA1632] (Bypass valve lift sensor low error) ..................................................... 66
Failure code [CA1633] (KOMNET datalink timeout error) ....................................................... 67
Troubleshooting by failure code (Display of code), Part 4
SEN00561-01
Troubleshooting by failure code (Display of code), Part 4...........................................................4
Failure code [CA2185] (Throttle sensor supply voltage high error) .........................................4
Failure code [CA2186] (Throttle sensor power supply low error) ............................................6
Failure code [CA2249] (Supply pump pressure very low error 2)............................................7
Failure code [CA2271] (EGR valve lift sensor high error) .......................................................8
Failure code [CA2272] (EGR valve lift sensor low error) ......................................................... 10
Failure code [CA2351] (EGR valve solenoid operation short circuit) ...................................... 12
Failure code [CA2352] (EGR valve solenoid operation disconnect)........................................ 14
Failure code [CA2555] (Intake heater relay voltage low error) ................................................ 15
Failure code [CA2556] (Intake heater relay voltage high error)............................................... 16
Failure code [D191KA] (AJSS neutral safety relay: Disconnection) ........................................ 18
Failure code [D191KB] (AJSS neutral safety relay: Short circuit)............................................ 20
Failure code [D192KA] (ECSS solenoid: Disconnection) ........................................................ 22
Failure code [D192KB] (ECSS solenoid: Short circuit)............................................................ 23
Failure code [D192KY] (ECSS solenoid: Short circuit with power supply line)........................ 24
Failure code [D198KA] (Transmission oil pressure bypass solenoid: Disconnection)............. 25
Failure code [D198KB] (Transmission oil pressure bypass solenoid: Short circuit) ................ 26
Failure code [D198KY] (Transmission oil pressure bypass solenoid:
Short circuit with power supply line) ........... 27
Failure code [D5ZHKA] (Terminal C signal: Disconnection) .................................................... 28
Failure code [D5ZHKB] (Terminal C signal: Short circuit)........................................................ 30
Failure code [D5ZHKZ] (Terminal C signal: Disconnection or short circuit)............................. 32
Failure code [D5ZHL6] (Terminal C signal: Signal does not match engine running or
stopped state)............................................. 34
Failure code [DA80L4] (Auto grease controller: ON/OFF signals disagree)............................ 36
Failure code [DAF3KK] (Machine monitor: Low source voltage (input)).................................. 38
Failure code [DAF5KP] (Machine monitor: Low output voltage).............................................. 40
WA600-6
9SEN00398-05
00 Index and foreword
Failure code [DAFRKR] (CAN communication with machine monitor:
Defective communication (Abnormality in target component system))............................. 42
Failure code [DAQ0KK] (Transmission controller: Low source voltage) .................................. 44
Failure code [DAQ0KT] (Transmission controller: Abnormality in controller)........................... 46
Failure code [DAQ2KK] (Transmission controller load power supply line:
Low source voltage (input)) ........................ 48
Failure code [DAQ9KQ] (Transmission controller model selection:
Disagreement of model selection signals)........................................................................ 50
Failure code [DAQRKR] (CAN communication with transmission controller:
Defective communication (Abnormality in target component system))............................. 52
Failure code [DAQRMA] (Transmission controller CAN communication: Malfunction)............ 54
Troubleshooting by failure code (Display of code), Part 5
SEN00562-01
Troubleshooting by failure code (Display of code), Part 5...........................................................4
Failure code [DB2RKR] CAN communication from engine controller:
Defective communication (Abnormality in target component system) ..............................4
Failure code [DB90KK] Work equipment controller: Low source voltage (input) .....................6
Failure code [DB90KT] (Work equipment controller: Abnormality in controller) ......................8
Failure code [DB92KK] Work equipment controller load power supply line:
Low source voltage (input) ......................... 10
Failure code [DB95KX] (Work equipment controller power supply output:
Out of input signal range) ........................... 12
Failure code [DB99KQ] (Work equipment controller model selection:
Disagreement of model selection signals)........................................................................ 14
Failure code [DB9RKR] CAN communication with work equipment controller:
Defective communication (Abnormality in target component system) .............................. 16
Failure code [DB9RMA] (Work equipment controller CAN communication: Malfunction) ....... 18
Failure code [DB9RMC] (CAN communication with transmission controller:
Defective operation) ................................... 20
Failure code [DBB0KK] (or VHMS_LED display: n9 o 01) VHMS controller:
Low source voltage (input) ......................... 22
Failure code [DBB0KQ] (or VHMS_LED display: nF o 11) VHMS controller:
(Disagreement of model selection signals)....................................................................... 24
Failure code [DBB3KK] (or VHMS_LED display: n9 o 05) VHMS controller
battery power supply: Low source voltage (input) ............................................................ 26
Failure code [DBB5KP] (or VHMS_LED display: n9 o 04) (VHMS controller
5 V power supply output: Low output voltage).................................................................. 28
Failure code [DBB6KP] (or VHMS_LED display: n9 o 02) (VHMS controller
24 V power supply output: Low output voltage)................................................................ 30
Failure code [DBB7KP] (or VHMS_LED display: n9 o 03) (VHMS controller
12 V power supply output: Low output voltage)................................................................ 32
Failure code [DBBQKR] (or VHMS_LED display: n8 o 02) VHMS controller CAN
communication: Defective communication (Abnormality in target component system).... 34
Failure code [DD15LD] (t switch (Panel switch 1): Switch is kept pressed for long time)...... 36
Failure code [DD16LD] (U switch (Panel switch 2): Switch is kept pressed for long time)..... 38
Failure code [DD17LD] (< switch (Panel switch 3): Switch is kept pressed for long time)....... 40
Failure code [DD18LD] (> switch (Panel switch 4): Switch is kept pressed for long time)....... 42
Failure code [DD1ALD] (Remote positioner raise/lower set switch (raise):
Switch is kept pressed for long time).......... 44
Failure code [DD1BLD] (Remote positioner raise/lower set switch (lower):
Switch is kept pressed for long time).......... 46
Failure code [DD1CLD] (Load meter subtotal switch: Switch is kept pressed for long time) ... 48
Failure code [DD1FLD] (Load meter mode selector switch (A/B): Switch is kept
pressed for long time)................................. 50
Failure code [DD1GLD] (Load meter mode selector switch (+/): Switch is kept
pressed for long time)................................. 52
Troubleshooting by failure code (Display of code), Part 6
SEN00569-01
Troubleshooting by failure code (Display of code), Part 6...........................................................4
10
WA600-600 Index and foreword
SEN00398-05
Failure code [DD1HLD] (Load meter display selector switch: Switch is kept pressed
for long time) ..............................................4
Failure code [DDA7L4] (RPM set ON/OFF switch: ON-OFF signals disagree ........................6
Failure code [DDA8KB] (RPM set idle-up/down selector switch (idle-up): Short circuit) .........8
Failure code [DDA9KB] (RPM set idle-up/down selector switch (idle-down): Short circuit) .... 10
Failure code [DDB6L4] (Turn parking brake switch (Neutralizer): ON/OFF signals disagree) 12
Failure code [DDD1LD] (Remote positioner bucket angle set switch: Switch is kept
pressed for long time)................................. 16
Failure code [DDDBKA] (Traction adjustment dial: Disconnection)......................................... 18
Failure code [DDDBKB] (Traction adjustment dial: Short circuit) ............................................ 20
Failure code [DDE5MA] (Emergency steering drive switch: Malfunction) ............................... 22
Failure code [DDK4KA] (AJSS FNR switch: Disconnection) ................................................... 24
Failure code [DDK4KB] (AJSS FNR switch: Short circuit)....................................................... 26
Failure code [DDK5L4] (AJSS ***-up/down switch: ON/OFF signals disagree) ..................... 28
Failure code [DDK6KA] (FNR lever switch: Disconnection) .................................................... 32
Failure code [DDK6KB] (FNR lever switch: Short circuit) ........................................................ 34
Failure code [DDP5KA] (Lock detection pressure switch of steering lock lever: Disconnection)36
Failure code [DDT0L4] (Shift mode selector switch: ON/OFF signals disagree)..................... 38
Failure code [DDW9LD] (Kick-down switch: Switch is kept pressed for long time) ................. 40
Failure code [DDWLLD] (Hold switch: Switch is kept pressed for long time) .......................... 42
Failure code [DDY0LD] (Load meter cancel switch: Switch is kept pressed for long time) ..... 44
Failure code [DF10KA] (Transmission shift lever switch: Disconnection)................................ 46
Failure code [DF10KB] (Transmission shift lever switch: Short circuit) ................................... 48
Failure code [DGE5KX] (or VHMS_LED display: n4 o 01) (Atmospheric temperature
sensor: Out of input signal range) .............. 50
Failure code [DGF1KA] (Transmission oil temperature sensor: Disconnection) ..................... 52
Failure code [DGF1KB] (Transmission oil temperature sensor: Short circuit) ......................... 54
Troubleshooting by failure code (Display of code), Part 7
SEN00570-01
Troubleshooting by failure code (Display of code), Part 7...........................................................4
Failure code [DGH2KX] (Hydraulic oil temperature sensor: Out of input signal range)...........4
Failure code [DGR2KA] (Rear brake oil temperature sensor: Disconnection) ........................6
Failure code [DGR2KX] (Rear brake oil temperature sensor: Out of input signal range) ........8
Failure code [DGT1KA] (Torque converter oil temperature sensor: Disconnection) ................ 10
Failure code [DGT1KB] (Torque converter oil temperature sensor: Short circuit).................... 11
Failure code [DGT1KX] (Torque converter oil temperature sensor: Out of input signal
range) ......................................................... 12
Failure code [DGT4KA] (or VHMS_LED display: n3 o 12) (Exhaust gas temperature
sensor (F): Disconnection) ......................... 14
Failure code [DGT4KB] (or VHMS_LED display: n3 o 11) (Exhaust gas temperature
sensor (F): Short circuit)............................. 16
Failure code [DGT5KA] (or VHMS_LED display: n3 o 22) (Exhaust gas temperature
sensor (R): Disconnection) ......................... 18
Failure code [DGT5KB] (or VHMS_LED display: n3 o 21) (Exhaust gas temperature
sensor (R): Short circuit) ............................ 20
Failure code [DH21KA] (Work equipment pump oil pressure sensor: Disconnection) ............ 22
Failure code [DH21KB] (Work equipment pump oil pressure sensor: Short circuit) ................ 24
Failure code [DHE5KB] (or VHMS_LED display: n3 o 32) (Blow-by pressure sensor:
Short circuit) ............................................... 26
Failure code [DHE5KY] (or VHMS_LED display: n3 o 31) (Blow-by pressure sensor:
Short circuit with power supply line) ........... 28
Failure code [DHPCKX] (Lift arm cylinder bottom pressure sensor: Out of input signal
range) ......................................................... 30
Failure code [DHPDKX] (Lift arm cylinder head pressure sensor: Out of input signal
range) ......................................................... 32
Failure code [DHT2L6] (Transmission filter clogging sensor: Signal disagrees with
operating state of engine)........................... 34
Failure code [DHT8KX] (or VHMS_LED display: n5 o 33) (Steering oil pressure sensor:
Out of input signal range) ........................... 36
WA600-6
11SEN00398-05
00 Index and foreword
Failure code [DHTBKA] (Modulation clutch oil pressure sensor: Disconnection) .................... 38
Failure code [DHTBKB] (Modulation clutch oil pressure sensor: Short circuit)........................ 40
Failure code [DHU2KX] (or VHMS_LED display: n7 o 11) (Front brake oil pressure
sensor (F): Out of input signal range)......... 42
Failure code [DHU3KX] (or VHMS_LED display: n7 o 12) (Rear brake oil pressure
sensor (R): Out of input signal range) ........ 44
Failure code [DK30KA] (AJSS lever angle sensor: Disconnection)......................................... 46
Failure code [DK30KY] (AJSS lever angle sensor: Short circuit with power supply line) ........ 48
Troubleshooting by failure code (Display of code), Part 8
SEN00571-01
Troubleshooting by failure code (Display of code), Part 8...........................................................3
Failure code [DK59KA] (Lift arm EPC lever potentiometer (Main): Disconnection) .................3
Failure code [DK59KY] (Lift arm EPC lever potentiometer (Main): Short circuit with
power supply line)....................................... 6
Failure code [DK59L8] (Lift arm EPC lever potentiometer (Main): Analog signals disagree) .. 10
Failure code [DK5AKA] (Lift arm EPC lever potentiometer (Sub): Disconnection) .................. 13
Failure code [DK5AKY] (Lift arm EPC lever potentiometer (Sub): Short circuit with
power supply line)....................................... 16
Failure code [DK5BKA] (Bucket EPC lever potentiometer (Main): Disconnection) ................. 19
Failure code [DK5BKY] (Bucket EPC lever potentiometer (Main): Short circuit with
power supply line)....................................... 22
Failure code [DK5BL8] (Bucket EPC lever potentiometer (Main): Analog signals disagree)... 24
Failure code [DK5CKA] (Bucket EPC lever potentiometer (Sub): Disconnection)................... 27
Failure code [DK5CKY] (Bucket EPC lever potentiometer (Sub): Short circuit with
power supply line)....................................... 30
Failure code [DK5DKA] (3-spool valve (attachment) EPC lever potentiometer (Main):
Disconnection)............................................ 32
Failure code [DK5DKY] (3-spool valve (attachment) EPC lever potentiometer (Main):
Short circuit with power supply line) ........... 34
Failure code [DK5DL8] (3-spool valve (attachment) EPC lever potentiometer (Main):
Analog signals disagree) ............................ 36
Failure code [DK5EKA] (3-spool valve (attachment) EPC lever potentiometer (Sub):
Disconnection)............................................ 40
Failure code [DK5EKY] (3-spool valve EPC lever potentiometer (Sub): Short circuit with
power supply line)....................................... 42
Failure code [DKA0KA] (Lift arm angle sensor: Disconnection) .............................................. 44
Failure code [DKA0KX] (Lift arm angle sensor: Out of input signal range).............................. 46
Failure code [DKA0KY] (Lift arm angle sensor: Short circuit with power supply line).............. 48
Failure code [DKA0L0] (Lift arm angle sensor: Improper position).......................................... 50
Troubleshooting by failure code (Display of code), Part 9
SEN00572-01
Troubleshooting by failure code (Display of code), Part 9...........................................................4
Failure code [DKD0KA] (Frame angle sensor: Disconnection) .................................................4
Failure code [DKD0KY] (Frame angle sensor: Short circuit with power supply line).................6
Failure code [DKD0KZ] (AJSS lever and frame angle sensor: Disconnection or short circuit) .
8
Failure code [DLFAKA] (Modulation clutch output shaft speed sensor: Disconnection) ........... 10
Failure code [DLFALC] (Modulation clutch output shaft speed sensor: Speed signals
disagree)....................................................... 12
Failure code [DLT3KA] (Transmission output shaft speed sensor (2): Disconnection) ............. 14
Failure code [DLT3LC] (Transmission output shaft speed sensor (2): Speed signals disagree) 16
Failure code [DLT4KB] (Transmission output shaft speed sensor (1): Short circuit)................. 18
Failure code [DLT4KX] (Transmission output shaft speed sensor (1): Out of input signal
range) ........................................................... 20
Failure code [DUM1KB] (Remote positioner raise indicator lamp: Short circuit)....................... 22
Failure code [DUM2KB] (Remote positioner lower indicator lamp: Short circuit) ...................... 24
Failure code [DV00KB] (Alarm buzzer: Short circuit) ................................................................ 26
Failure code [DW4PKA] (Lift arm raise EPC solenoid: Disconnection) ..................................... 28
Failure code [DW4PKB] (Lift arm raise EPC solenoid: Short circuit)......................................... 29
Failure code [DW4PKY] (Lift arm raise EPC solenoid: Short circuit with power supply line) .... 30
12
WA600-600 Index and foreword
SEN00398-05
Failure code [DW4QKA] (Lift arm lower EPC solenoid: Disconnection) ................................... 32
Failure code [DW4QKB] (Lift arm lower EPC solenoid: Short circuit) ....................................... 33
Failure code [DW4QKY] (Lift arm lower EPC solenoid: Short circuit with power supply line)... 34
Failure code [DW4RKA] (Bucket tilt EPC solenoid: Disconnection).......................................... 36
Failure code [DW4RKB] (Bucket tilt EPC solenoid: Short circuit) ............................................. 37
Failure code [DW4RKY] (Bucket tilt EPC solenoid: Short circuit with power supply line)......... 38
Failure code [DW4SKA] (Bucket dump EPC solenoid: Disconnection) .................................... 40
Failure code [DW4SKB] (Bucket dump EPC solenoid: Short circuit) ........................................ 41
Failure code [DW4SKY] (Bucket dump EPC solenoid: Short circuit with power supply line).... 42
Failure code [DW7BKA] (Fan reverse solenoid: Disconnection)............................................... 44
Failure code [DW7BKB] (Fan reverse solenoid: Short circuit) .................................................. 46
Failure code [DW7BKY] (Fan reverse solenoid: Short circuit with power supply line).............. 48
Failure code [DW7DKA] (Hydraulic drive fan neutral solenoid: Disconnection)........................ 50
Failure code [DW7DKB] (Hydraulic drive fan neutral solenoid: Short circuit) ........................... 50
Failure code [DW7DKY] (Hydraulic drive fan neutral solenoid: Short circuit with
power supply line) ........................................ 51
Troubleshooting by failure code (Display of code), Part 10
SEN00573-01
Troubleshooting by failure code (Display of code), Part 10.........................................................4
Failure code [DWM1KA] (Work equipment neutral lock solenoid: Disconnection) ..................4
Failure code [DWM1KB] (Work equipment neutral lock solenoid: Short circuit)......................6
Failure code [DWM1KY] (Work equipment neutral lock EPC solenoid: Short circuit with
power supply line) ......................................8
Failure code [DWN6KA] (Lift arm raise magnet detent solenoid: Disconnection) ................... 10
Failure code [DWN6KB] (Lift arm raise magnet detent solenoid: Short circuit) ....................... 12
Failure code [DWN6KY] (Lift arm raise magnet detent solenoid: Short circuit with power
supply line) ................................................. 14
Failure code [DWN7KA] (Lift arm float magnet detent solenoid: Disconnection) .................... 16
Failure code [DWN7KB] (Lift arm float magnet detent solenoid: Short circuit) ........................ 18
Failure code [DWN7KY] (Lift arm float magnet detent solenoid: Short circuit with power
supply line) ................................................. 20
Failure code [DWN8KA] (Bucket tilt magnet detent solenoid: Disconnection) ........................ 22
Failure code [DWN8KB] (Bucket tilt magnet detent solenoid: Short circuit) ............................ 24
Failure code [DWN8KY] (Bucket tilt magnet detent solenoid: Shorted with the power source) 26
Failure code [DWNFKA] (Modulation clutch cut-off release solenoid: Disconnection) ............ 28
Failure code [DWNFKB] (Modulation clutch cut-off release solenoid: Short circuit)................ 30
Failure code [DWNFKY] (Modulation clutch cut-off release solenoid: Short circuit with
power source line) ...................................... 32
Failure code [DX16KA] (Fan pump EPC solenoid: Disconnection) ......................................... 34
Failure code [DX16KB] (Fan pump EPC solenoid: Short circuit)............................................. 35
Failure code [DX16KY] (Fan pump EPC solenoid: Short circuit with power supply line) ........ 36
Failure code [DXA1KA] (Pump PC-EPC solenoid: Disconnection) ......................................... 37
Failure code [DXA1KB] (Pump PC-EPC solenoid: Short circuit)............................................. 38
Failure code [DXF0KA] (AJSS EPC solenoid: Disconnection) ................................................ 39
Failure code [DXF0KB] (AJSS EPC solenoid: Short circuit).................................................... 40
Failure code [DXH1KA] (Lockup ECMV solenoid: Disconnection) .......................................... 41
Failure code [DXH1KB] (Lockup ECMV solenoid: Short circuit).............................................. 42
Failure code [DXH1KY] (Lockup ECMV solenoid: Short circuit with power supply line) ......... 44
Failure code [DXH4KA] (1st clutch ECMV solenoid: Disconnection) ...................................... 46
Failure code [DXH4KB] (1st clutch ECMV solenoid: Short circuit) .......................................... 48
Failure code [DXH4KY] (1st clutch ECMV solenoid: Short circuit with power supply line) ...... 50
Troubleshooting by failure code (Display of code), Part 11
SEN00574-01
Troubleshooting by failure code (Display of code), Part 11.........................................................4
Failure code [DXH5KA] (2nd clutch ECMV solenoid: Disconnection) .....................................4
Failure code [DXH5KB] (2nd clutch ECMV solenoid: Short circuit) .........................................6
Failure code [DXH5KY] (2nd clutch ECMV solenoid: Short circuit with power supply line).....8
Failure code [DXH6KA] (3rd clutch ECMV solenoid: Disconnection) ...................................... 10
Failure code [DXH6KB] (3rd clutch ECMV solenoid: Short circuit).......................................... 12
WA600-6
13SEN00398-05
00 Index and foreword
Failure code [DXH6KY] (3rd clutch ECMV solenoid: Short circuit with power supply line)...... 14
Failure code [DXH7KA] (R clutch ECMV solenoid: Disconnection)......................................... 16
Failure code [DXH7KB] (R clutch ECMV solenoid: Short circuit) ............................................ 18
Failure code [DXH7KY] (R clutch ECMV solenoid: Short circuit with power supply line) ........ 20
Failure code [DXH8KA] (F clutch ECMV solenoid: Disconnection) ......................................... 22
Failure code [DXH8KB] (F clutch ECMV solenoid: Short circuit)............................................. 24
Failure code [DXH8KY] (F clutch ECMV solenoid: Short circuit with power supply line)......... 26
Failure code [DXHHKA] (4th clutch ECMV solenoid: Disconnection)...................................... 28
Failure code [DXHHKB] (4th clutch ECMV solenoid: Short circuit) ......................................... 30
Failure code [DXHHKY] (4th clutch ECMV solenoid: Short circuit with power supply line) ..... 32
Failure code [DXHJKA] (3-spool valve extract EPC solenoid: Disconnection) ........................ 34
Failure code [DXHJKB] (3-spool valve extract EPC solenoid: Short circuit)............................ 35
Failure code [DXHJKY] (3-spool valve extract EPC solenoid: Short circuit with power
supply line) ................................................. 36
Failure code [DXHKKA] (3-spool valve retract EPC solenoid: Disconnection) ........................ 37
Failure code [DXHKKB] (3-spool valve retract EPC solenoid: Short circuit)............................ 38
Failure code [DXHKKY] (3-spool valve retract EPC solenoid: Short circuit with power
supply line) ................................................. 39
Failure code [DXHPKA] (Modulation clutch solenoid: Disconnection)..................................... 40
Failure code [DXHPKB] (Modulation clutch solenoid: Short circuit) ........................................ 42
Failure code [DXHPKY] (Modulation clutch solenoid: Short circuit with power source line).... 44
Failure code [DXHPMA] (Modulation clutch solenoid: Malfunction) ........................................ 46
Failure code [F@BBZL] (or VHMS_LED display: n3 o 38) (Blow-by pressure: High error) 48
Failure code [F@BYNR] (or VHMS_LED display: n3 o 62)
(Exhaust gas temperature (F): Abnormal heat) ................................................................ 50
Failure code [F@BYNS] (or VHMS_LED display: n3 o 61)
(Exhaust gas temperature (F): Overheat)......................................................................... 52
Failure code [F@BZNR] (or VHMS_LED display: n3 o 72)
(Exhaust gas temperature (R): abnormal heat) ................................................................ 54
Failure code [F@BZNS] (or VHMS_LED display n3 o 71)
(Exhaust gas temperature (R): Overheat) ........................................................................ 56
Troubleshooting of electrical system (E-mode)
SEN00563-01
Troubleshooting of electrical system (E-mode) .....4
Before carrying out troubleshooting of electrical system .........................................................4
Information in troubleshooting table...................7
E-1 Engine does not start. .................................8
E-2 Wiper does not operate............................... 18
E-3 Windshield washer does not operate .......... 26
E-4 Headlamp, clearance lamp, tail lamp, and license lamp do not light up or go off ............. 32
E-5 Working lamp does not light up or go off..... 46
E-6 Step lamp does not light up or go off........... 52
E-7 Turn signal lamp and hazard lamp do not light up or go off .............................................. 54
E-8 Brake lamp does not light or it keeps lighting up............................................................... 64
E-9 Backup lamp does not light or it keeps lighting up. ........................................................... 66
E-10 Backup buzzer does not sound or it keeps sounding...................................................... 70
E-11 Horn does not sound or it keeps sounding. ..................................................................... 74
E-12 Alarm buzzer does not sound or it keeps sounding ........................................................ 78
E-13 Air conditioner does not operate or stop ......................................................................... 80
Troubleshooting of hydraulic and mechanical system (H-mode)
SEN00564-00
Troubleshooting of hydraulic and mechanical system (H-mode).................................................4
Method of using troubleshooting chart...............4
Table of failure modes and causes ....................6
H-1 Machine does not start................................ 10
H-2 Torque converter lockup is not switched (engine stalls).................................................... 12
H-3 Torque converter lockup is not turned on.... 13
H-4 Travel speed is slow, thrusting force is weak, uphill traveling power is weak,
and gear is not shifted ................................ 14
14
WA600-600 Index and foreword
SEN00398-05
H-5 Shocks are large at the times of starting and shifting gear ............................................... 16
H-6 Time lag is large at the times of starting and shifting gear................................................ 18
H-7 Torque converter oil temperature is high .... 20
H-8 Steering does not turn [machine with steering wheel] ...................................................... 21
H-9 Steering does not turn [machine with AJSS]..................................................................... 22
H-10 Turning, response of steering is poor [machine with steering wheel] ............................. 23
H-11 Turning, response of AJSS is poor [machine with AJSS] ............................................... 24
H-12 Steering is heavy [machine with steering wheel] ............................................................ 25
H-13 When machine turns, it shakes or makes large shocks [machine with steering wheel] . 26
H-14 When machine turns, it shakes or makes large shocks [machine with AJSS]................ 27
H-15 Wheel brake does not work or does not work well ......................................................... 28
H-16 Wheel brake is not released or it drags .... 29
H-17 Parking brake does not work or does not work well ....................................................... 30
H-18 Parking brake is not released or it drags (including emergency release system)........... 31
H-19 Lift arm does not rise ................................ 32
H-20 Lift arm speed is low or rising force of lift arm is insufficient ........................................... 33
H-21 When rising, lift arm comes to move slowly at specific height ........................................ 34
H-22 Lift arm cylinder cannot hold down bucket (Bucket floats).............................................. 34
H-23 Hydraulic drifts of lift arm occur often........ 34
H-24 Lift arm wobbles during operation............. 34
H-25 Bucket does not tilt back........................... 35
H-26 Bucket speed is low or tilting back force is insufficient ................................................... 36
H-27 Bucket comes to operate slowly in the midst of tilting-back............................................ 37
H-28 Bucket cylinder cannot hold down bucket....................................................................... 37
H-29 Hydraulic drifts of bucket occur often........ 37
H-30 Bucket wobbles during travel with cargo (Work equipment valve is set to HOLD)....... 37
H-31 During operation of machine, engine speed lowers remarkably or engine stalls............ 38
H-32 Large shocks are made when work equipment starts and stops .................................... 38
H-33 When work equipment circuit is relieved singly, other work equipment moves .............. 38
H-34 ECSS does not operate, and pitching bouncing occurs ................................................. 39
Troubleshooting of engine (S-mode)
SEN00565-00
Troubleshooting of engine (S-mode).....................3
Method of using troubleshooting chart ..............3
S-1 Engine does not start easily. .......................6
S-2 Engine does not start ..................................8
S-3 Engine does not pick up smoothly .............. 12
S-4 Engine stops during operation .................... 13
S-5 Engine does not rotate smoothly ................ 14
S-6 Engine lacks output (or lacks power) .......... 15
S-7 Exhaust smoke is black (Incomplete combustion) ............................................................ 16
S-8 Oil is consumed much (or exhaust gas color is blue) ....................................................... 18
S-9 Engine oil becomes contaminated quickly ........................................................................ 19
S-10 Fuel consumption is excessive ................. 20
S-11 Coolant contains oil (blows back or reduces).................................................................. 21
S-12 Oil pressure drops..................................... 22
S-13 Oil level rises (Water, fuel in oil)................ 24
S-14 Coolant temperature rises too high (Overheating).......................................................... 26
S-15 Abnormal noise is made ........................... 27
S-16 Vibration is excessive ............................... 28
50 Disassembly and assembly
General information on disassembly and assembly
SEN01156-01
General information on disassembly and assembly....................................................................2
How to read this manual....................................2
Coating materials list .........................................4
Special tool list...................................................7
Sketches of special tools ................................... 11
WA600-6
15SEN00398-05
00 Index and foreword
SEN01157-00
Engine and cooling system, Part 1
Engine and cooling system, Part 1........................2
Removal and installation of engine assembly....2
Removal and installation of radiator assembly ........................................................................6
Removal and installation of air aftercooler......... 11
Removal and installation of cooling fan and fan motor assembly............................................ 12
Removal and installation of damper assembly ........................................................................ 14
Disassembly and assembly of damper assembly.................................................................... 16
Removal and installation of fuel tank assembly ....................................................................... 20
Removal and installation of engine hood assembly................................................................. 22
Removal and installation of bulkhead assembly...................................................................... 24
Engine and cooling system, Part 2
SEN01158-00
Engine and cooling system, Part 2........................2
Removal and installation of fuel supply pump assembly .........................................................2
Removal and installation of cylinder head assembly ...............................................................8
Removal and installation of fuel injector assembly .................................................................. 24
Removal and installation of engine front seal .... 28
Removal and installation of engine rear seal..... 31
Power train, Part 1
SEN01160-00
Power train, Part 1.................................................2
Removal and installation of parking brake assembly...............................................................2
Removal and installation of torque converter and transmission assembly ..............................4
Power train, Part 2
SEN01162-00
Power train, Part 2.................................................2
Disassembly and assembly of torque converter assembly......................................................2
Disassembly and assembly of transmission assembly............................................................ 29
Disassembly and assembly of transfer assembly.................................................................... 56
Disassembly and assembly of parking brake assembly .......................................................... 71
Power train, Part 3
SEN01164-00
Power train, Part 3.................................................2
Removal and installation of front axle assembly......................................................................2
Removal and installation of rear axle assembly ......................................................................4
Removal and installation of center support assembly .............................................................6
Disassembly and assembly of center support assembly .........................................................8
Disassembly and assembly of differential assembly ............................................................... 12
Power train, Part 4
SEN01165-00
Power train, Part 4.................................................2
Removal and installation of final drive carrier assembly ..........................................................2
Disassembly and assembly of final drive carrier assembly .....................................................4
Removal and installation of front final drive brake assembly...................................................5
Disassembly and assembly of final drive assembly.................................................................7
Brake system
SEN01167-00
Brake system.........................................................2
Disassembly and assembly of brake assembly .......................................................................2
Removal and installation of brake valve assembly .................................................................. 10
Disassembly and assembly of accumulator and charge valve assembly ................................ 11
Disassembly and assembly of slack adjustor assembly .......................................................... 14
Undercarriage and frame
SEN01169-00
Undercarriage and frame ......................................2
Removal and installation of center hinge pin .....2
Removal and installation of counterweight assembly ..............................................................9
Hydraulic system
SEN01171-00
Hydraulic system ...................................................2
Removal and installation of hydraulic tank assembly ..............................................................2
Removal and installation of hydraulic pump assembly ............................................................4
16
WA600-600 Index and foreword
SEN00398-05
8
Removal and installation of control valve assembly ................................................................Disassembly and assembly of control valve assembly............................................................ 10
Removal and installation of steering valve assembly .............................................................. 15
Removal and installation of ECSS accumulator assembly ...................................................... 16
Disassembly and assembly of hydraulic cylinder assembly .................................................... 17
Work equipment
SEN01174-00
Work equipment ....................................................2
Removal and installation of work equipment assembly ...........................................................2
Cab and its attachments
SEN01175-00
Cab and its attachments........................................2
Removal and installation of operator's cab assembly..............................................................2
Removal and installation of operator's cab glass (stuck glass) ...............................................6
Removal and installation of floor frame assembly ................................................................... 14
Electrical system
SEN01177-00
Electrical system ...................................................2
Removal and installation of engine controller assembly..........................................................2
Removal and installation of transmission controller assembly ................................................4
Removal and installation of loader controller assembly ..........................................................4
Removal and installation of VHMS controller assembly ..........................................................5
Removal and installation of monitor assembly ........................................................................6
Removal and installation of air conditioner unit assembly .......................................................9
90 Diagrams and drawings
Hydraulic diagrams and drawings
SEN00412-02
Power train hydraulic circuit diagram.................2
Brake hydraulic circuit diagram .........................3
Work equipment hydraulic circuit diagram.........5
Electrical diagrams and drawings
SEN00413-02
Air conditioner electrical circuit diagram ............3
Steering wheel specification
Electrical circuit diagram (1/10) .........................5
Electrical circuit diagram (2/10) .........................7
Electrical circuit diagram (3/10) .........................9
Electrical circuit diagram (4/10) ......................... 11
Electrical circuit diagram (5/10) ......................... 13
Electrical circuit diagram (6/10) ......................... 15
Electrical circuit diagram (7/10) ......................... 17
Electrical circuit diagram (8/10) ......................... 19
Electrical circuit diagram (9/10) ......................... 21
Electrical circuit diagram (10/10) ....................... 23
AJSS (Advanced Joystick Steering System) specification
Electrical circuit diagram (1/10) ......................... 25
Electrical circuit diagram (2/10) ......................... 27
Electrical circuit diagram (3/10) ......................... 29
Electrical circuit diagram (4/10) ......................... 31
Electrical circuit diagram (5/10) ......................... 33
Electrical circuit diagram (6/10) ......................... 35
Electrical circuit diagram (7/10) ......................... 37
Electrical circuit diagram (8/10) ......................... 39
Electrical circuit diagram (9/10) ......................... 41
Electrical circuit diagram (10/10) ....................... 43
Connector arrangement diagram....................... 45
---------------------------------
And A LOT MORE..--------------------------------