Komatsu D37EX -23 Install guide

BULLDOZER
SEN06061-03
D37EX -23
D37PX-23
D39EX -23
D39PX-23
SERIAL NUMBERS
D37EX-80001
D37PX-80001
D39EX-90001
D39PX-90001
and up

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SHOP MANUAL
BULLDOZER
D37EX-23
D37PX-23
D39EX-23
D39PX-23
Model
D37EX-23
D37PX-23
D39EX-23
D39PX-23
Serial Number
80001 and up
80001 and up
90001 and up
90001 and up
00 Index and foreword
1 00 Index and foreword
D37, 39-23 00-1
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00 Index and foreword
Index
Index (ALL-0310-001-A-00-A)
00 Index and foreword .......................................................................................................................00-1
Index .........................................................................................................................................00-2
Foreword, safety and general information ................................................................................... 00-14
Important safety notice .......................................................................................................00-14
How to read the shop manual..............................................................................................00-21
Explanation of terms for maintenance standard .................................................................... 00-23
Handling equipment of fuel system devices .......................................................................... 00-25
Handling of intake system parts........................................................................................... 00-26
Handling of hydraulic equipment.......................................................................................... 00-27
Method of disconnecting and connecting of push-pull type coupler ......................................... 00-29
Handling of electrical equipment.......................................................................................... 00-32
How to read electric wire code............................................................................................. 00-40
Precautions when performing operation ............................................................................... 00-43
Practical use of KOMTRAX................................................................................................. 00-48
Standard tightening torque table.......................................................................................... 00-49
List of abbreviation ............................................................................................................. 00-55
Conversion table................................................................................................................ 00-60
01 Specification.................................................................................................................................01-1
Table of contents ........................................................................................................................01-2
Specifications.............................................................................................................................01-3
Specification drawing ...........................................................................................................01-3
Specifications ......................................................................................................................01-7
Weight table ...................................................................................................................... 01-27
Table of fuel, coolant, and lubricants .................................................................................... 01-35
10 Structure and function ...................................................................................................................10-1
Table of contents ........................................................................................................................10-2
Engine and cooling system..........................................................................................................10-3
Engine related parts .............................................................................................................10-3
VFT ....................................................................................................................................10-5
EGR system piping drawing..................................................................................................10-9
EGR system circuit diagram................................................................................................ 10-11
EGR valve......................................................................................................................... 10-12
EGR cooler........................................................................................................................ 10-14
KCCV layout drawing ......................................................................................................... 10-16
KCCV ventilator ................................................................................................................. 10-18
KDOC muffler .................................................................................................................... 10-22
Cooling system .................................................................................................................. 10-24
Cooling fan motor............................................................................................................... 10-26
Oil cooler bypass and HST charge safety valve..................................................................... 10-34
Power train............................................................................................................................... 10-41
Power train system............................................................................................................. 10-41
Damper............................................................................................................................. 10-44
Hydraulic component layout of HST..................................................................................... 10-45
Steering and brake control .................................................................................................. 10-46
HST pump......................................................................................................................... 10-48
HST motor......................................................................................................................... 10-62
Charge pump..................................................................................................................... 10-78
Solenoid valve ................................................................................................................... 10-79
Final drive ......................................................................................................................... 10-89
Undercarriage and frame........................................................................................................... 10-93
Main frame ........................................................................................................................ 10-93
Track frame and idler cushion ............................................................................................. 10-94
Hydraulic system ...................................................................................................................... 10-96
Hydraulic component layout................................................................................................ 10-96
Work equipment control system........................................................................................... 10-98
Hydraulic tank.................................................................................................................. 10-100
CLSS.............................................................................................................................. 10-102
00-2 D37, 39-23
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00 Index and foreword
Index
Work equipment and cooling fan pump .............................................................................. 10-105
Control valve ................................................................................................................... 10-116
Ripper PPC valve............................................................................................................. 10-133
Angle control EPC valve ................................................................................................... 10-138
Accumulator .................................................................................................................... 10-143
Work equipment ..................................................................................................................... 10-145
Blade .............................................................................................................................. 10-145
Ripper............................................................................................................................. 10-146
Piston valve..................................................................................................................... 10-147
Cab and its attachments.......................................................................................................... 10-148
ROPS cab ....................................................................................................................... 10-148
Cab mount ...................................................................................................................... 10-150
Electrical system .................................................................................................................... 10-151
Electrical control system ................................................................................................... 10-151
Machine monitor system................................................................................................... 10-173
KOMTRAX system........................................................................................................... 10-195
System component parts .................................................................................................. 10-198
Sensor ............................................................................................................................ 10-215
20 Standard value tables....................................................................................................................20-1
Table of contents ........................................................................................................................20-2
Standard service value table........................................................................................................20-3
Standard value table for engine.............................................................................................20-3
Standard value table for machine ..........................................................................................20-4
Standard value table for electrical system............................................................................. 20-17
30 Testing and adjusting ....................................................................................................................30-1
Table of contents ........................................................................................................................30-2
Related information on testing and adjusting ................................................................................. 30-4
Tools for testing and adjusting ...............................................................................................30-4
Sketch of tools for testing and adjusting ................................................................................. 30-7
Engine and cooling system..........................................................................................................30-8
Testing engine speed ...........................................................................................................30-8
Testing exhaust gas color ...................................................................................................30-10
Testing and adjusting valve clearance.................................................................................. 30-12
Testing compression pressure............................................................................................. 30-14
Testing blowby pressure ..................................................................................................... 30-17
Testing engine oil pressure ................................................................................................. 30-18
Testing fuel pressure .......................................................................................................... 30-19
Testing fuel return rate and leakage .....................................................................................30-20
Bleeding air from fuel system .............................................................................................. 30-23
Testing fuel circuit for leakage .............................................................................................30-24
Handling cylinder cutout mode operation.............................................................................. 30-25
Handling no-injection cranking operation .............................................................................. 30-26
Testing of installed condition of cylinder heads and manifolds ................................................ 30-27
Testing engine piping for damage and looseness .................................................................. 30-28
Replacing belt for alternator and air conditioner compressor .................................................. 30-29
Writing compensation values at replacement of injector and engine controller ......................... 30-30
Power train............................................................................................................................... 30-34
Testing and adjusting HST oil pressure................................................................................. 30-34
Testing outlet pressure of solenoid valve .............................................................................. 30-39
Testing if machine travels straight ........................................................................................ 30-43
Simple test procedure for brake performance ....................................................................... 30-44
Adjusting deceleration/brake pedal ...................................................................................... 30-45
Adjusting parking brake lever .............................................................................................. 30-48
Move disabled machine urgently ......................................................................................... 30-50
Undercarriage and frame........................................................................................................... 30-53
Adjusting idler clearance..................................................................................................... 30-53
Checking sprocket wear ..................................................................................................... 30-54
Testing and adjusting track tension ...................................................................................... 30-55
Hydraulic system ...................................................................................................................... 30-56
D37, 39-23 00-3
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00 Index and foreword
Index
Releasing remaining pressure in work equipment cylinder ..................................................... 30-56
Testing and adjusting work equipment oil pressure................................................................ 30-57
Testing source pressure of control circuit.............................................................................. 30-59
Testing outlet pressure of work equipment EPC valve and fan EPC valve ............................... 30-60
Isolating the parts causing hydraulic drift in blade and ripper .................................................. 30-62
Testing internal oil leakage of work equipment cylinder .......................................................... 30-63
Testing fan speed............................................................................................................... 30-65
Testing fan circuit oil pressure .............................................................................................30-66
Bleeding air from hydraulic circuit ........................................................................................ 30-67
Work equipment ....................................................................................................................... 30-68
Adjusting work equipment lock lever .................................................................................... 30-68
Adjusting play of blade center ball........................................................................................30-70
Electrical system ...................................................................................................................... 30-71
Special functions of machine monitor................................................................................... 30-71
Adjustment method when HST controller has been replaced ................................................ 30-143
Adjustment method when electric or hydraulic device has been replaced .............................. 30-146
Adjusting rearview camera angle....................................................................................... 30-147
Testing windshield wiper operation .................................................................................... 30-148
Replacing windshield wiper blade...................................................................................... 30-149
Handling voltage circuit of engine controller........................................................................ 30-150
Handling battery disconnect switch .................................................................................... 30-151
Testing diodes ................................................................................................................. 30-152
Pm clinic ................................................................................................................................ 30-153
Pm Clinic service ............................................................................................................. 30-153
Pm Clinic service (D39EX-23,D39PX-23) ........................................................................... 30-155
Pm Clinic check sheet ...................................................................................................... 30-157
Pm Clinic check sheet (D39EX-23,D39PX-23).................................................................... 30-166
40 Troubleshooting............................................................................................................................40-1
Table of contents ........................................................................................................................40-2
Related information on troubleshooting......................................................................................... 40-9
Troubleshooting points .........................................................................................................40-9
Sequence of events in troubleshooting................................................................................. 40-11
Checks before troubleshooting............................................................................................ 40-13
Inspection procedure before troubleshooting ........................................................................ 40-15
Preparation for troubleshooting of electrical system............................................................... 40-33
Classification and procedures for troubleshooting ................................................................. 40-36
Symptom and troubleshooting numbers ............................................................................... 40-38
Information in troubleshooting table ..................................................................................... 40-40
Troubleshooting method for open circuit in wiring harness of pressure sensor system.............. 40-42
Connector list and layout .................................................................................................... 40-44
Connector contact identification........................................................................................... 40-55
T-branch box and T-branch adapter table ............................................................................. 40-93
Fuse location table ............................................................................................................. 40-98
Failure codes table........................................................................................................... 40-103
Troubleshooting by failure code (Display of code) ...................................................................... 40-112
Failure code [6091NX] HST Oil Filter Clogging ................................................................... 40-112
Failure code [989L00] Engine Controller Lock Caution 1...................................................... 40-114
Failure code [989M00] Engine Controller Lock Caution 2..................................................... 40-115
Failure code [989N00] Engine Controller Lock Caution 3 ..................................................... 40-116
Failure code [AA10NX] Air Cleaner Clogging ...................................................................... 40-117
Failure code [AB00KE] Charge Voltage Low....................................................................... 40-119
Failure code [B@BAZG] Eng Oil Press Low ....................................................................... 40-121
Failure code [B@BCNS] Eng Water Overheat .................................................................... 40-122
Failure code [B@CRNS] HST Oil Overheat ........................................................................ 40-123
Failure code [B@CRZG] HST Charge Press Low ............................................................... 40-124
Failure code [CA115] Eng Ne and Bkup Speed Sens Error .................................................. 40-125
Failure code [CA122] Chg Air Press Sensor High Error ....................................................... 40-126
Failure code [CA123] Chg Air Press Sensor Low Error ........................................................ 40-128
Failure code [CA131] Throttle Sensor High Error................................................................. 40-130
00-4 D37, 39-23
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00 Index and foreword
Index
Failure code [CA132] Throttle Sensor Low Error ................................................................. 40-132
Failure code [CA144] Coolant Temp Sens High Error .......................................................... 40-134
Failure code [CA145] Coolant Temp Sens Low Error ........................................................... 40-136
Failure code [CA153] Chg Air Temp Sensor High Error........................................................ 40-138
Failure code [CA154] Chg Air Temp Sensor Low Error......................................................... 40-140
Failure code [CA187] Sensor 2 Supply Volt Low Error ......................................................... 40-142
Failure code [CA221] Ambient Press Sensor High Error ...................................................... 40-144
Failure code [CA222] Ambient Press Sensor Low Error ....................................................... 40-146
Failure code [CA227] Sensor 2 Supply Volt High Error......................................................... 40-148
Failure code [CA234] Eng Overspeed ................................................................................ 40-149
Failure code [CA238] Ne Speed Sensor Supply Volt Error ................................................... 40-150
Failure code [CA239] Ne Speed Sens Supply Volt High Error............................................... 40-151
Failure code [CA271] IMV/PCV1 Short Error ...................................................................... 40-152
Failure code [CA272] IMV/PCV1 Open Error ...................................................................... 40-153
Failure code [CA322] Inj #1(L#1) Open/Short Error ............................................................. 40-154
Failure code [CA324] Inj #3(L#3) Open/Short Error ............................................................. 40-156
Failure code [CA331] Inj #2(L#2) Open/Short Error ............................................................. 40-158
Failure code [CA332] Inj #4(L#4) Open/Short Error ............................................................. 40-160
Failure code [CA343] ECM Critical Internal Failure.............................................................. 40-162
Failure code [CA351] Injectors Drive Circuit Error ............................................................... 40-163
Failure code [CA352] Sensor 1 Supply Volt Low Error ......................................................... 40-164
Failure code [CA356] Mass Air Flow Sensor High Error ....................................................... 40-166
Failure code [CA357] Mass Air Flow Sensor Low Error........................................................ 40-168
Failure code [CA386] Sensor 1 Supply Volt High Error......................................................... 40-170
Failure code [CA435] Eng Oil Press Sw Error ..................................................................... 40-171
Failure code [CA441] Battery Voltage Low Error ................................................................. 40-172
Failure code [CA442] Battery Voltage High Error................................................................. 40-174
Failure code [CA449] Rail Press Very High Error................................................................. 40-175
Failure code [CA451] Rail Press Sensor High Error............................................................. 40-176
Failure code [CA452] Rail Press Sensor Low Error ............................................................. 40-178
Failure code [CA466] KVGT Motor Driver Position Error ...................................................... 40-180
Failure code [CA515] Rail Press Sens Sup Volt High Error .................................................. 40-182
Failure code [CA516] Rail Press Sens Sup Volt Low Error ................................................... 40-184
Failure code [CA553] Rail Press High Error ........................................................................ 40-186
Failure code [CA555] Crankcase Press High Error 1 ........................................................... 40-187
Failure code [CA556] Crankcase Press High Error 2 ........................................................... 40-188
Failure code [CA559] Rail Press Low Error......................................................................... 40-189
Failure code [CA689] Eng Ne Speed Sensor Error .............................................................. 40-192
Failure code [CA691] Intake Air Temp Sens High Error........................................................ 40-194
Failure code [CA692] Intake Air Temp Sens Low Error......................................................... 40-196
Failure code [CA697] ECM Internal Temp Sensor High Error................................................ 40-198
Failure code [CA698] ECM Int Temp Sensor Low Error........................................................ 40-199
Failure code [CA731] Eng Bkup Speed Sens Phase Error ................................................... 40-200
Failure code [CA778] Eng Bkup Speed Sensor Error........................................................... 40-203
Failure code [CA1117] Persistent Data Lost Error................................................................ 40-207
Failure code [CA1695] Sensor 5 Supply Volt High Error....................................................... 40-208
Failure code [CA1696] Sensor 5 Supply Volt Low Error ....................................................... 40-209
Failure code [CA1843] Crankcase Press Sens High Error.................................................... 40-210
Failure code [CA1844] Crankcase Press Sens Low Error .................................................... 40-212
Failure code [CA1896] EGR Valve Stuck Error.................................................................... 40-214
Failure code [CA1942] Crankcase Press Sens In Range Error ............................................. 40-215
Failure code [CA1961] EGR_Motor Driver IC Over Temp Error............................................. 40-216
Failure code [CA2185] Throt Sensor Sup Volt High Error ..................................................... 40-217
Failure code [CA2186] Throt Sensor Sup Volt Low Error...................................................... 40-218
Failure code [CA2249] Rail Press Very Low Error ............................................................... 40-219
Failure code [CA2272] EGR Valve Pos Sens Low Error ....................................................... 40-220
Failure code [CA2311] IMV Solenoid Error ......................................................................... 40-222
Failure code [CA2349] EGR Valve Solenoid Open Error ...................................................... 40-223
Failure code [CA2353] EGR Valve Solenoid Short Error ...................................................... 40-225
D37, 39-23 00-5
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00 Index and foreword
Index
Failure code [CA2357] EGR Valve Servo Error ................................................................... 40-227
Failure code [CA2555] Grid Htr Relay Volt Low Error ........................................................... 40-228
Failure code [CA2556] Grid Htr Relay Volt High Error .......................................................... 40-230
Failure code [CA2765] Inj Trim Data Error .......................................................................... 40-232
Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error ........................................ 40-233
Failure code [CA3421] Mass Air Flow Sensor Sup Volt Low Error ......................................... 40-235
Failure code [CA3724] EGR/KVGT Motor Driver Power Low Error........................................ 40-237
Failure code [CA3918] KVGT Stuck Error........................................................................... 40-239
Failure code [CA3919] KVGT Motor Driver IC Over Temp Error ............................................ 40-240
Failure code [CA3921] KVGT Servo Error 2........................................................................ 40-241
Failure code [CA3922] KVGT Motor Driver Open Error ........................................................ 40-242
Failure code [CA3923] KVGT Motor Driver Short Error ........................................................ 40-244
Failure code [D130KA] Neutral relay Open ......................................................................... 40-246
Failure code [D130KB] Neutral relay Short circuit................................................................ 40-248
Failure code [D130KY] Neutral relay: Hot Short .................................................................. 40-250
Failure code [D19JKZ] Personal Code Relay Abnormality.................................................... 40-252
Failure code [D811MC] KOMTRAX Error............................................................................ 40-255
Failure code [D862KA] GPS Antenna Open Circuit ............................................................. 40-256
Failure code [D8ALKA] Operating Lamp Open Circuit (KOMTRAX) ...................................... 40-257
Failure code [D8ALKB] Operating Lamp Short Circuit (KOMTRAX) ...................................... 40-259
Failure code [D8AQKR] CAN2 Discon (KOMTRAX) ............................................................ 40-260
Failure code [DAF0MB] Monitor ROM Abnormality.............................................................. 40-262
Failure code [DAF0MC] Monitor Error ................................................................................ 40-263
Failure code [DAF8KB] Camera Power Supply Short Circuit ................................................ 40-264
Failure code [DAF9KQ] Model Selection Abnormality .......................................................... 40-265
Failure code [DAFGMC] GPS Module Error........................................................................ 40-266
Failure code [DAFLKA] Operating Lamp Open Circuit (Monitor) ........................................... 40-267
Failure code [DAFLKB] Operating Lamp Short Circuit (Monitor)............................................ 40-269
Failure code [DAFQKR] CAN2 Discon (Monitor) ................................................................. 40-270
Failure code [DAJ000] HST controller: Abnormality in controller ........................................... 40-271
Failure code [DAJ0KQ] HST controller: Type select signal ................................................... 40-272
Failure code [DAJ0KT] HST controller: Abnormality in controller ........................................... 40-273
Failure code [DAJ0MC] HST Con Error .............................................................................. 40-274
Failure code [DAJ1KK] HST controller: Source voltage low .................................................. 40-275
Failure code [DAJ2KK] HST controller: Output voltage low................................................... 40-277
Failure code [DAJ5KK] HST: Sensor volt 5V (0) Out of normal range .................................... 40-279
Failure code [DAJ6KK] HST: Sensor volt 5V (1) Out of normal range .................................... 40-281
Failure code [DAJLKA] Operating Lamp Open Circuit (HST Con) ......................................... 40-283
Failure code [DAJLKB] Operating Lamp Short Circuit (HST Con) ......................................... 40-285
Failure code [DAJPMA] Inconsistency of Option Selection (HST) ......................................... 40-286
Failure code [DAJQKR] CAN2 Discon (HST Con) ............................................................... 40-287
Failure code [DAJRKR] CAN1 Discon (HST Con) ............................................................... 40-288
Failure code [DB2QKR] CAN2 Discon (Engine Con) ........................................................... 40-289
Failure code [DB2RKR] CAN1 Discon (Engine Con) ........................................................... 40-293
Failure code [DD12KA] Shift up SW: Open ......................................................................... 40-297
Failure code [DD12KB] Shift up SW: Short Circuit ............................................................... 40-299
Failure code [DD13KA] Shift down SW: Open..................................................................... 40-301
Failure code [DD13KB] Shift down SW: Short Circuit........................................................... 40-303
Failure code [DD14KA] Parking lever SW: Open ................................................................. 40-305
Failure code [DD14KB] Parking lever SW: Short circuit........................................................ 40-307
Failure code [DDKAKA] Blade float Sw: Open .................................................................... 40-309
Failure code [DDKAKB] Blade float Sw: Short circuit ........................................................... 40-311
Failure code [DDKFL4] Left Angle Sw: Signal mismatch ...................................................... 40-313
Failure code [DDKGL4] Right Angle Sw: Signal mismatch ................................................... 40-315
Failure code [DDKHKA] iB Sw: Open ................................................................................. 40-317
Failure code [DDKHKB] iB Sw: Short circuit........................................................................ 40-319
Failure code [DDNLKA] Weq lock Sw: Open....................................................................... 40-321
Failure code [DDNLKB] Weq lock Sw: Short circuit ............................................................. 40-323
Failure code [DDP6KA] Brake Pressure Sensor: Open........................................................ 40-325
00-6 D37, 39-23
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00 Index and foreword
Index
Failure code [DDP6KB] Brake Pressure Sensor: Hot Short .................................................. 40-327
Failure code [DDP6MA] Brake pressure sensor: Malfunction ............................................... 40-329
Failure code [DDU1FS] Parking lever Switch 2: Signal mismatch ......................................... 40-331
Failure code [DDU1KA] Parking lever Sw2:Open ................................................................ 40-333
Failure code [DDU1KY] Parking lever Sw2:Hot Short .......................................................... 40-335
Failure code [DFA4KX] Blade lift lever: Main and Sub Error ................................................. 40-337
Failure code [DFA4KZ] Blade lift lever: Main and Sub Error.................................................. 40-338
Failure code [DFA4L8] Blade lift lever: Signal mismatch ...................................................... 40-339
Failure code [DFA5KA] Blade lift lever1: Open .................................................................... 40-340
Failure code [DFA5KB] Blade lift lever1: Hot Short .............................................................. 40-343
Failure code [DFA6KA] Blade lift lever2: Open .................................................................... 40-345
Failure code [DFA6KB] Blade lift lever2: Hot Short .............................................................. 40-347
Failure code [DFA7KX] Blade tilt lever: Main and Sub Error ................................................. 40-349
Failure code [DFA7KZ] Blade tilt lever: Main and Sub Error.................................................. 40-350
Failure code [DFA7L8] Blade tilt lever: Signal mismatch ...................................................... 40-351
Failure code [DFA8KA] Blade tilt lever1: Open .................................................................... 40-352
Failure code [DFA8KB] Blade tilt lever1: Hot Short .............................................................. 40-355
Failure code [DFA9KA] Blade tilt lever2: Open .................................................................... 40-357
Failure code [DFA9KB] Blade tilt lever2: Hot Short .............................................................. 40-360
Failure code [DGS1KA] HST oil temp sensor: Open ............................................................ 40-362
Failure code [DGS1KX] HST oil temp sensor:Out of normal range ........................................ 40-364
Failure code [DH21KA] Weq pressure sensor: Open ........................................................... 40-365
Failure code [DH21KB] Weq pressure sensor: Hot Short ..................................................... 40-367
Failure code [DHA4KA] Air Cleaner Clog Sensor Open Circuit ............................................. 40-369
Failure code [DHH7KA] LF HST Pressure Sensor: Open ..................................................... 40-371
Failure code [DHH7KB] LF HST Pressure Sensor: Hot Short ............................................... 40-373
Failure code [DHH8KA] RF HST Pressure Sensor: Open .................................................... 40-375
Failure code [DHH8KB] RF HST Pressure Sensor: Hot Short............................................... 40-377
Failure code [DHH9KA] LR HST Pressure Sensor: Open..................................................... 40-379
Failure code [DHH9KB] LR HST Pressure Sensor: Hot Short............................................... 40-381
Failure code [DHHAKA] RR HST Pressure Sensor: Open.................................................... 40-383
Failure code [DHHAKB] RR HST Pressure Sensor: Hot Short.............................................. 40-385
Failure code [DK30KA] ST lever1: Open ............................................................................ 40-387
Failure code [DK30KB] ST lever1: Hot Short....................................................................... 40-389
Failure code [DK30KX] ST lever: Main and Sub Error.......................................................... 40-391
Failure code [DK30KZ] ST lever: Main and Sub Error .......................................................... 40-392
Failure code [DK30L8] ST lever: Signal mismatch............................................................... 40-393
Failure code [DK31KA] ST lever2: Open ............................................................................ 40-394
Failure code [DK31KB] ST lever2: Hot Short....................................................................... 40-396
Failure code [DK40KA] Decel/Brake potentiometer: Open ................................................... 40-398
Failure code [DK40KB] Decel/Brake potentiometer: Hot Short.............................................. 40-401
Failure code [DK55KX] FR lever: Main and Sub Error.......................................................... 40-403
Failure code [DK55KZ] FR lever: Main and Sub Error.......................................................... 40-404
Failure code [DK55L8] FR lever: Signal mismatch............................................................... 40-405
Failure code [DK56KA] FR lever1: Open ............................................................................ 40-406
Failure code [DK56KB] FR lever1: Hot Short ...................................................................... 40-408
Failure code [DK57KA] FR lever2: Open ............................................................................ 40-410
Failure code [DK57KB] FR lever2: Hot Short ...................................................................... 40-412
Failure code [DLM0KX] HST Motor Speed Sensor: Left/Right Error ...................................... 40-414
Failure code [DLM1KA] Left HST motor speed sensor: Open ............................................... 40-415
Failure code [DLM1KB] Left HST motor speed sensor: Short circuit...................................... 40-417
Failure code [DLM1MA] Left HST motor speed sensor: Malfunction...................................... 40-419
Failure code [DLM2KA] Right HST motor speed sensor: Open............................................. 40-420
Failure code [DLM2KB] Right HST motor speed sensor: Short circuit ................................... 40-422
Failure code [DLM2MA] Right HST motor speed sensor: Malfunction ................................... 40-424
Failure code [DLM3KA] Fan Speed Sensor Open Circuit ..................................................... 40-425
Failure code [DLM3KB] Fan Speed Sensor Short Circuit ..................................................... 40-427
Failure code [DLM3MB] Fan control: Mismatch ................................................................... 40-429
Failure code [DN21FS] Decel/Brake pedal SW: Signal mismatch ......................................... 40-430
D37, 39-23 00-7
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00 Index and foreword
Index
Failure code [DR21KX] Camera 2 Picture Rev. Drive Abnormality ........................................ 40-432
Failure code [DR31KX] Camera 3 Picture Rev. Drive Abnormality ........................................ 40-433
Failure code [DV20KB] Back-up alarm : Short circuit ........................................................... 40-434
Failure code [DW4BKA] Parking brake solenoid: Open........................................................ 40-436
Failure code [DW4BKB] Parking brake solenoid: Short circuit .............................................. 40-438
Failure code [DW4BKY] Parking brake solenoid: Hot Short.................................................. 40-440
Failure code [DW7BKA] Fan reverse solenoid: Open .......................................................... 40-442
Failure code [DW7BKB] Fan reverse solenoid: Short circuit ................................................. 40-444
Failure code [DW7EKA] Slow brake solenoid: Open............................................................ 40-445
Failure code [DW7EKB] Slow brake solenoid: Short circuit .................................................. 40-447
Failure code [DW7EKY] Slow brake solenoid: Hot Short...................................................... 40-449
Failure code [DWN5KA] Fan EPC: Open............................................................................ 40-451
Failure code [DWN5KB] Fan EPC: Short circuit .................................................................. 40-453
Failure code [DWN5KY] Fan EPC: Hot Short...................................................................... 40-454
Failure code [DXA4KA] LF HST pump EPC: Open.............................................................. 40-456
Failure code [DXA4KB] LF HST pump EPC: Short circuit..................................................... 40-458
Failure code [DXA4KY] LF HST pump EPC: Hot Short ........................................................ 40-459
Failure code [DXA5KA] LR HST pump EPC:Open .............................................................. 40-461
Failure code [DXA5KB] LR HST pump EPC:Short circuit ..................................................... 40-463
Failure code [DXA5KY] LR HST pump EPC: Hot Short........................................................ 40-465
Failure code [DXA6KA] RF HST pump EPC: Open ............................................................. 40-467
Failure code [DXA6KB] RF HST pump EPC: Short circuit .................................................... 40-469
Failure code [DXA6KY] RF HST pump EPC: Hot Short........................................................ 40-470
Failure code [DXA7KA] RR HST pump EPC: Open ............................................................. 40-472
Failure code [DXA7KB] RR HST pump EPC: Short circuit.................................................... 40-474
Failure code [DXA7KY] RR HST pump EPC: Hot Short ....................................................... 40-475
Failure code [DXHRKA] Blade lift up EPC: Open ................................................................ 40-477
Failure code [DXHRKB] Blade lift up EPC: Short circuit ....................................................... 40-479
Failure code [DXHRKY] Blade lift up EPC: Hot short ........................................................... 40-480
Failure code [DXHSKA] Blade lift down EPC: Open ............................................................ 40-482
Failure code [DXHSKB] Blade lift down EPC: Short circuit ................................................... 40-484
Failure code [DXHSKY] Blade lift down EPC: Hot short ....................................................... 40-485
Failure code [DXHTKA] Blade tilt left EPC: Open ................................................................ 40-487
Failure code [DXHTKB] Blade tilt left EPC: Short circuit ....................................................... 40-489
Failure code [DXHTKY] Blade tilt left EPC: Hot short ........................................................... 40-490
Failure code [DXHUKA] Blade tilt right EPC: Open.............................................................. 40-492
Failure code [DXHUKB] Blade tilt right EPC: Short circuit..................................................... 40-494
Failure code [DXHUKY] Blade tilt right EPC: Hot short......................................................... 40-495
Failure code [DXJ4KA] Weq lock Sol.: Open ...................................................................... 40-497
Failure code [DXJ4KB] Weq lock Sol.: Short circuit ............................................................. 40-499
Failure code [DXJCKA] Blade angle left EPC: Open............................................................ 40-501
Failure code [DXJCKB] Blade angle left EPC: Short circuit .................................................. 40-502
Failure code [DXJCKY] Blade angle left EPC: Hot short ...................................................... 40-503
Failure code [DXJDKA] Blade angle right EPC: Open.......................................................... 40-505
Failure code [DXJDKB] Blade angle right EPC: Short circuit ................................................ 40-506
Failure code [DXJDKY] Blade angle right EPC: Hot short .................................................... 40-507
Failure code [DXK1KA] Left HST motor EPC: Open ............................................................ 40-509
Failure code [DXK1KB] Left HST motor EPC: Short circuit................................................... 40-511
Failure code [DXK1KY] Left HST motor EPC: Hot Short ...................................................... 40-512
Failure code [DXK2KA] Right HST motor EPC: Open.......................................................... 40-514
Failure code [DXK2KB] Right HST motor EPC: Short circuit................................................. 40-516
Failure code [DXK2KY] Right HST motor EPC: Hot Short .................................................... 40-517
Troubleshooting of electrical system (E-mode) .......................................................................... 40-519
E-1 Engine does not start (Engine does not crank) .............................................................. 40-519
E-2 Manual preheating system does not work..................................................................... 40-525
E-3 Automatic preheating system does not work................................................................. 40-528
E-4 While preheating is working, preheating monitor does not light up .................................. 40-530
E-5 When starting switch is turned to ON position, machine monitor displays nothing............. 40-532
00-8 D37, 39-23
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