Komatsu PC170LC-10 Install guide

HYDRAULIC
EXCAVATOR
SEN06367-03
PC170LC-10
SERIAL NUMBERS
30001
and up

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SHOP MANUAL
HYDRAULIC EXCAVATOR
PC170LC-10
Model
PC170LC-10
Serial Number
30001 and up
00 Index and foreword
1 00 Index and foreword
PC170LC-10 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 ................................................................................... 00-13
Important safety notice .......................................................................................................00-13
How to read the shop manual.............................................................................................. 00-20
Explanation of terms for maintenance standard .................................................................... 00-22
Handling equipment of fuel system devices .......................................................................... 00-24
Handling of intake system parts........................................................................................... 00-25
Handling of hydraulic equipment.......................................................................................... 00-26
Method of disconnecting and connecting of push-pull type coupler ......................................... 00-28
Handling of electrical equipment.......................................................................................... 00-31
How to read electric wire code............................................................................................. 00-39
Precautions when performing operation ............................................................................... 00-42
Practical use of KOMTRAX................................................................................................. 00-47
Standard tightening torque table.......................................................................................... 00-48
List of abbreviation ............................................................................................................. 00-54
Conversion table................................................................................................................ 00-59
01 Specification.................................................................................................................................01-1
Table of contents ........................................................................................................................01-2
Specifications.............................................................................................................................01-3
Specification drawing ...........................................................................................................01-3
Working range drawings .......................................................................................................01-4
Specifications ......................................................................................................................01-5
Weight table ........................................................................................................................01-8
Table of fuel, coolant, and lubricants ...................................................................................... 01-9
10 Structure and function ...................................................................................................................10-1
Table of contents ........................................................................................................................10-2
Engine and cooling system..........................................................................................................10-3
Engine related parts .............................................................................................................10-3
Variable flow turbocharger ....................................................................................................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 ................................................................................................................. 10-19
KDOC muffler .................................................................................................................... 10-21
Cooling system .................................................................................................................. 10-23
Power train............................................................................................................................... 10-25
Power train system............................................................................................................. 10-25
Swing circle ....................................................................................................................... 10-27
Swing machinery ............................................................................................................... 10-28
Final drive ......................................................................................................................... 10-30
Undercarriage and frame........................................................................................................... 10-32
Track frame and idler cushion ............................................................................................. 10-32
Hydraulic system ...................................................................................................................... 10-34
Hydraulic component layout................................................................................................ 10-34
Valve control...................................................................................................................... 10-37
Hydraulic tank.................................................................................................................... 10-39
CLSS................................................................................................................................ 10-41
Main pump ........................................................................................................................ 10-45
Control valve ..................................................................................................................... 10-71
Swing motor .................................................................................................................... 10-119
Travel motor .................................................................................................................... 10-121
PPC valve ....................................................................................................................... 10-136
Solenoid valve ................................................................................................................. 10-158
Attachment circuit selector valve (for high pressure circuit) .................................................. 10-162
00-2 PC170LC-10
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00 Index and foreword
Index
Attachment circuit selector valve (for low pressure circuit).................................................... 10-164
Center swivel joint............................................................................................................ 10-167
Accumulator .................................................................................................................... 10-169
Work equipment ..................................................................................................................... 10-170
Work equipment............................................................................................................... 10-170
Work equipment shim....................................................................................................... 10-171
Bucket play adjustment shim............................................................................................. 10-172
Cab and its attachments.......................................................................................................... 10-173
Cab mount and cab tipping stopper ................................................................................... 10-173
ROPS cab....................................................................................................................... 10-174
Electrical system .................................................................................................................... 10-175
Electrical control system ................................................................................................... 10-175
Machine monitor system................................................................................................... 10-220
KOMTRAX system........................................................................................................... 10-242
Sensor ............................................................................................................................ 10-245
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 ..........................................................................................20-5
Standard value table for electrical system............................................................................. 20-19
30 Testing and adjusting ....................................................................................................................30-1
Table of contents ........................................................................................................................30-2
Related information on testing and adjusting ................................................................................. 30-3
Tools for testing and adjusting ...............................................................................................30-3
Sketch of tools for testing and adjusting ................................................................................. 30-6
Engine and cooling system..........................................................................................................30-7
Testing engine speed ...........................................................................................................30-7
Testing boost pressure .........................................................................................................30-8
Testing exhaust gas color ................................................................................................... 30-10
Testing and adjusting valve clearance.................................................................................. 30-11
Testing compression pressure............................................................................................. 30-14
Testing blowby pressure ..................................................................................................... 30-18
Testing engine oil pressure ................................................................................................. 30-19
Testing fuel pressure .......................................................................................................... 30-20
Testing fuel discharge, return and leakage............................................................................ 30-25
Bleeding air from fuel system ..............................................................................................30-30
Testing fuel circuit for leakage ............................................................................................. 30-32
Handling cylinder cutout mode operation.............................................................................. 30-33
Handling no-injection cranking operation.............................................................................. 30-34
Testing and adjusting air conditioner compressor belt tension ................................................ 30-35
Replacing fan belt .............................................................................................................. 30-36
Power train............................................................................................................................... 30-37
Testing swing circle bearing clearance ................................................................................. 30-37
Undercarriage and frame........................................................................................................... 30-38
Testing and adjusting track tension ...................................................................................... 30-38
Hydraulic system ...................................................................................................................... 30-39
Releasing remaining pressure from hydraulic circuit.............................................................. 30-39
Testing oil pressure of control circuit .................................................................................... 30-40
Testing and adjusting oil pressure in work equipment, swing, and travel circuits....................... 30-41
Testing and adjusting oil pressure in pump PC control circuit.................................................. 30-45
Testing and adjusting oil pressure in pump LS control circuit .................................................. 30-48
Testing outlet pressure of solenoid valve .............................................................................. 30-52
Testing PPC valve outlet pressure ....................................................................................... 30-55
Adjusting play of work equipment and swing PPC valves....................................................... 30-57
Testing pump swash plate sensor ........................................................................................ 30-58
Isolating the parts causing hydraulic drift in work equipment................................................... 30-59
Testing and adjusting travel deviation................................................................................... 30-61
Testing oil leakage ............................................................................................................. 30-63
PC170LC-10 00-3
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00 Index and foreword
Index
Bleeding air from hydraulic circuit ........................................................................................ 30-66
Cab and its attachments............................................................................................................ 30-68
Testing cab tipping stopper ................................................................................................. 30-68
Adjusting mirrors ................................................................................................................ 30-69
Electrical system ...................................................................................................................... 30-71
Special functions of machine monitor ................................................................................... 30-71
KOMTRAX terminal start-up procedure .............................................................................. 30-130
Adjusting rearview camera angle....................................................................................... 30-133
Handling voltage circuit of engine controller........................................................................ 30-135
Handling battery disconnect switch .................................................................................... 30-136
Testing diodes ................................................................................................................. 30-137
Pm clinic ................................................................................................................................ 30-138
Pm Clinic service ............................................................................................................. 30-138
40 Troubleshooting............................................................................................................................40-1
Table of contents ........................................................................................................................40-2
Related information on troubleshooting ......................................................................................... 40-8
Troubleshooting points .........................................................................................................40-8
Sequence of events in troubleshooting................................................................................. 40-10
Checks before troubleshooting............................................................................................ 40-12
Inspection procedure before troubleshooting ........................................................................ 40-14
Preparation work for troubleshooting of electrical system....................................................... 40-32
Classification and procedure for troubleshooting................................................................... 40-37
Symptom and troubleshooting numbers ............................................................................... 40-40
Information in troubleshooting table ..................................................................................... 40-43
Procedure for troubleshooting wiring harness of pressure sensor system for open
circuit................................................................................................................... 40-45
Connector list and layout .................................................................................................... 40-48
Connector contact identification........................................................................................... 40-58
T-branch box and T-branch adapter table ............................................................................. 40-97
Fuse location table........................................................................................................... 40-102
Failure codes table........................................................................................................... 40-104
Troubleshooting by failure code (Display of code) .......................................................................40-111
Failure code [879AKA] A/C Inner Sensor Open Circuit .........................................................40-111
Failure code [879AKB] A/C Inner Sensor Short Circuit......................................................... 40-112
Failure code [879BKA] A/C Outer Sensor Open Circuit........................................................ 40-113
Failure code [879BKB] A/C Outer Sensor Short Circuit........................................................ 40-114
Failure code [879CKA] Ventilating Sensor Open Circuit....................................................... 40-115
Failure code [879CKB] Ventilating Sensor Short Circuit ....................................................... 40-116
Failure code [879DKZ] Sunlight Sensor Open Or Short Circuit ............................................. 40-117
Failure code [879EMC] Ventilation Damper Abnormality ...................................................... 40-118
Failure code [879FMC] Air Mix Damper Abnormality ........................................................... 40-119
Failure code [879GKX] Refrigerant Abnormality .................................................................. 40-120
Failure code [989L00] Engine Controller Lock Caution 1...................................................... 40-121
Failure code [989M00] Engine Controller Lock Caution 2..................................................... 40-122
Failure code [989N00] Engine Controller Lock Caution 3 ..................................................... 40-123
Failure code [AA10NX] Air Cleaner Clogging ...................................................................... 40-124
Failure code [AB00KE] Charge Voltage Low....................................................................... 40-126
Failure code [B@BAZG] Eng Oil Press Low ....................................................................... 40-128
Failure code [B@BAZK] Eng Oil Level Low ........................................................................ 40-129
Failure code [B@BCNS] Eng Water Overheat .................................................................... 40-130
Failure code [B@BCZK] Eng Water Level Low ................................................................... 40-131
Failure code [B@HANS] Hyd Oil Overheat ......................................................................... 40-133
Failure code [CA115] Eng Ne and Bkup Speed Sens Error .................................................. 40-134
Failure code [CA122] Chg Air Press Sensor High Error ....................................................... 40-135
Failure code [CA123] Chg Air Press Sensor Low Error ........................................................ 40-137
Failure code [CA131] Throttle Sensor High Error................................................................. 40-139
Failure code [CA132] Throttle Sensor Low Error ................................................................. 40-141
Failure code [CA144] Coolant Temp Sens High Error .......................................................... 40-143
Failure code [CA145] Coolant Temp Sens Low Error ........................................................... 40-145
00-4 PC170LC-10
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00 Index and foreword
Index
Failure code [CA153] Chg Air Temp Sensor High Error........................................................ 40-147
Failure code [CA154] Chg Air Temp Sensor Low Error......................................................... 40-149
Failure code [CA187] Sensor 2 Supply Volt Low Error ......................................................... 40-151
Failure code [CA221] Ambient Press Sensor High Error ...................................................... 40-153
Failure code [CA222] Ambient Press Sens Low Error .......................................................... 40-155
Failure code [CA227] Sensor 2 Supply Volt High Error......................................................... 40-157
Failure code [CA234] Eng Overspeed ................................................................................ 40-158
Failure code [CA238] Ne Speed Sensor Supply Volt Error ................................................... 40-159
Failure code [CA239] Ne Speed Sens Supply Volt High Error............................................... 40-160
Failure code [CA271] IMV/PCV1 Short Error ...................................................................... 40-161
Failure code [CA272] IMV/PCV1 Open Error ...................................................................... 40-163
Failure code [CA295] Ambient Press Sens In Range Error................................................... 40-165
Failure code [CA322] Inj #1(L#1) Open/Short Error ............................................................. 40-166
Failure code [CA324] Inj #3(L#3) Open/Short Error ............................................................. 40-168
Failure code [CA331] Inj #2(L#2) Open/Short Error ............................................................. 40-170
Failure code [CA332] Inj #4(L#4) Open/Short Error ............................................................. 40-172
Failure code [CA343] ECM Critical Internal Failure.............................................................. 40-174
Failure code [CA351] Injectors Drive Circuit Error ............................................................... 40-175
Failure code [CA352] Sensor 1 Supply Volt Low Error ......................................................... 40-176
Failure code [CA356] Mass Air Flow Sensor High Error ....................................................... 40-178
Failure code [CA357] Mass Air Flow Sensor Low Error........................................................ 40-180
Failure code [CA386] Sensor 1 Supply Volt High Error......................................................... 40-182
Failure code [CA428] Water in Fuel Sensor High Error ........................................................ 40-183
Failure code [CA429] Water in Fuel Sensor Low Error ......................................................... 40-185
Failure code [CA435] Eng Oil Press Sw Error ..................................................................... 40-187
Failure code [CA441] Battery Voltage Low Error ................................................................. 40-188
Failure code [CA442] Battery Voltage High Error................................................................. 40-190
Failure code [CA449] Rail Press Very High Error................................................................. 40-191
Failure code [CA451] Rail Press Sensor High Error............................................................. 40-192
Failure code [CA452] Rail Press Sensor Low Error ............................................................. 40-194
Failure code [CA466] KVGT Motor Driver Position Error ...................................................... 40-196
Failure code [CA488] Chg Air Temp High Torque Derate...................................................... 40-198
Failure code [CA515] Rail Press Sens Sup Volt High Error .................................................. 40-199
Failure code [CA516] Rail Press Sens Sup Volt Low Error ................................................... 40-201
Failure code [CA553] Rail Press High Error ........................................................................ 40-203
Failure code [CA555] Crankcase Press High Error 1 ........................................................... 40-204
Failure code [CA556] Crankcase Press High Error 2 ........................................................... 40-205
Failure code [CA559] Rail Press Low Error......................................................................... 40-206
Failure code [CA689] Eng Ne Speed Sensor Error .............................................................. 40-210
Failure code [CA691] Intake Air Temp Sens High Error........................................................ 40-212
Failure code [CA692] Intake Air Temp Sens Low Error......................................................... 40-214
Failure code [CA697] ECM Internal Temp Sensor High Error................................................ 40-216
Failure code [CA698] ECM Int Temp Sensor Low Error........................................................ 40-217
Failure code [CA731] Eng Bkup Speed Sens Phase Error ................................................... 40-218
Failure code [CA778] Eng Bkup Speed Sensor Error........................................................... 40-219
Failure code [CA1117] Persistent Data Lost Error................................................................ 40-222
Failure code [CA1695] Sensor 5 Supply Volt High Error....................................................... 40-223
Failure code [CA1696] Sensor 5 Supply Volt Low Error ....................................................... 40-224
Failure code [CA1843] Crankcase Press Sens High Error.................................................... 40-225
Failure code [CA1844] Crankcase Press Sens Low Error .................................................... 40-227
Failure code [CA1896] EGR Valve Stuck Error.................................................................... 40-229
Failure code [CA1942] Crankcase Press Sens In Range Error ............................................. 40-230
Failure code [CA1961] EGR_Motor Driver IC Over Temp Error............................................. 40-231
Failure code [CA2185] Throt Sensor Sup Volt High Error ..................................................... 40-232
Failure code [CA2186] Throt Sensor Sup Volt Low Error...................................................... 40-234
Failure code [CA2249] Rail Press Very Low Error ............................................................... 40-236
Failure code [CA2272] EGR Valve Pos Sens Low Error ....................................................... 40-237
Failure code [CA2311] IMV Solenoid Error ......................................................................... 40-239
Failure code [CA2349] EGR Valve Solenoid Open Error ...................................................... 40-240
PC170LC-10 00-5
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00 Index and foreword
Index
Failure code [CA2353] EGR Valve Solenoid Short Error ...................................................... 40-242
Failure code [CA2357] EGR Valve Servo Error ................................................................... 40-244
Failure code [CA2373] Exhaust Manifold Press Sens High Error .......................................... 40-245
Failure code [CA2374] Exhaust Manifold Press Sens Low Error........................................... 40-247
Failure code [CA2375] EGR Orifice Temp Sens High Error .................................................. 40-249
Failure code [CA2376] EGR Orifice Temp Sens Low Error ................................................... 40-251
Failure code [CA2554] Exh Manifold Press Sens In Range Error .......................................... 40-253
Failure code [CA2555] Grid Htr Relay Volt Low Error........................................................... 40-254
Failure code [CA2556] Grid Htr Relay Volt High Error .......................................................... 40-256
Failure code [CA2961] EGR Orifice Temp High Error 1 ........................................................ 40-258
Failure code [CA2973] Chg Air Press Sensor In Range Error ............................................... 40-259
Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error ........................................ 40-260
Failure code [CA3421] Mass Air Flow Sensor Sup Volt Low Error ......................................... 40-262
Failure code [CA3724] EGR/KVGT Motor Driver Power Low Error........................................ 40-264
Failure code [CA3741] Rail Press Valve Trip Error............................................................... 40-266
Failure code [CA3918] KVGT Stuck Error........................................................................... 40-267
Failure code [CA3919] KVGT Motor Driver IC Over Temp Error ............................................ 40-268
Failure code [CA3921] KVGT Servo Error 2........................................................................ 40-269
Failure code [CA3922] KVGT Motor Driver Open Error ........................................................ 40-270
Failure code [CA3923] KVGT Motor Driver Short Error ........................................................ 40-272
Failure code [D110KB] Battery Relay Drive Short Circuit...................................................... 40-274
Failure code [D19JKZ] Personal Code Relay Abnormality.................................................... 40-276
Failure code [D811MC] KOMTRAX Error............................................................................ 40-279
Failure code [D862KA] GPS Antenna Open Circuit ............................................................. 40-280
Failure code [D8ALKA] System Operating Lamp Disconnection (KOMTRAX)........................ 40-281
Failure code [D8ALKB] System Operating Lamp Short Circuit (KOMTRAX) .......................... 40-283
Failure code [D8AQKR] CAN2 Discon (KOMTRAX) ............................................................ 40-284
Failure code [DA20MC] Pump Controller Malfunction .......................................................... 40-286
Failure code [DA22KK] Pump Solenoid Power Low Error..................................................... 40-287
Failure code [DA25KP] 5V Sensor 1 Power Abnormality...................................................... 40-289
Failure code [DA29KQ] Model Selection Abnormality .......................................................... 40-291
Failure code [DA2LKA] System Operating Lamp Disconnection (Pump Con) ........................ 40-293
Failure code [DA2LKB] System Operating Lamp Short Circuit (Pump Con) ........................... 40-295
Failure code [DA2QKR] CAN2 Discon (Pump Con) ............................................................. 40-296
Failure code [DA2RKR] CAN1 Discon (Pump Con) ............................................................. 40-298
Failure code [DAF0MB] Monitor ROM Abnormality.............................................................. 40-299
Failure code [DAF0MC] Monitor Error ................................................................................ 40-300
Failure code [DAF8KB] Camera Power Supply Short Circuit ................................................ 40-301
Failure code [DAF9KQ] Model Selection Abnormality .......................................................... 40-303
Failure code [DAFGMC] GPS Module Error........................................................................ 40-304
Failure code [DAFLKA] Operating Lamp Open Circuit(Monitor) ............................................ 40-305
Failure code [DAFLKB] System Operating Lamp Short Circuit (Monitor)................................ 40-307
Failure code [DAFQKR] CAN2 Discon (Monitor) ................................................................. 40-308
Failure code [DAZ9KQ] A/C Model Selection Abnormality.................................................... 40-309
Failure code [DAZQKR] CAN2 Discon (Aircon ECU) ........................................................... 40-310
Failure code [DB2QKR] CAN2 Discon (Engine Con) ........................................................... 40-314
Failure code [DB2RKR] CAN1 Discon (Engine Con) ........................................................... 40-318
Failure code [DGH2KB] Hyd Oil Sensor Short Circuit .......................................................... 40-323
Failure code [DHA4KA] Air Cleaner Clogging Sensor Open Circuit....................................... 40-325
Failure code [DHPAMA] F Pump Press Sensor Abnormality................................................. 40-327
Failure code [DHPBMA] R Pump Press Sensor Abnormality ................................................ 40-329
Failure code [DHS3MA] Arm Curl PPC Press Sensor Abnormality........................................ 40-331
Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality ................................... 40-333
Failure code [DHS8MA] Boom Raise PPC Press Sensor Abnormality................................... 40-335
Failure code [DHS9MA] Boom Lower PPC Press Sensor Abnormality .................................. 40-337
Failure code [DHSAMA] Swing RH PPC Press Sensor Abnormality ..................................... 40-339
Failure code [DHSBMA] Swing LH PPC Press Sensor Abnormality ...................................... 40-341
Failure code [DHSCMA] Arm Dump PPC Press Sensor Abnormality .................................... 40-343
Failure code [DHSDMA] Bucket Dump PPC Press Sensor Abnormality ................................ 40-345
00-6 PC170LC-10
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00 Index and foreword
Index
Failure code [DKR0MA] Pump Swash Plate Sensor Abnormality.......................................... 40-347
Failure code [DR21KX] Camera 2 Picture Rev. Drive Abnormality ........................................ 40-349
Failure code [DR31KX] Camera 3 Picture Rev. Drive Abnormality ........................................ 40-351
Failure code [DV20KB] Travel Alarm Short Circuit............................................................... 40-352
Failure code [DW43KA] Travel Speed Sol Open Circuit ....................................................... 40-354
Failure code [DW43KB] Travel Speed Sol Short Circuit ....................................................... 40-356
Failure code [DW45KA] Swing Brake Sol Open Circuit ........................................................ 40-358
Failure code [DW45KB] Swing Brake Sol Short Circuit ........................................................ 40-361
Failure code [DW91KA] Travel Junction Sol Open Circuit .................................................... 40-363
Failure code [DW91KB] Travel Junction Sol Short Circuit..................................................... 40-365
Failure code [DWA2KA] Attachment Sol Open Circuit.......................................................... 40-367
Failure code [DWA2KB] Attachment Sol Short Circuit.......................................................... 40-369
Failure code [DWJ0KA] Merge-divider Sol Open Circuit....................................................... 40-370
Failure code [DWJ0KB] Merge-divider Sol Short Circuit....................................................... 40-371
Failure code [DWK0KA] 2-Stage Relief Sol Open Circuit ..................................................... 40-372
Failure code [DWK0KB] 2-Stage Relief Sol Short Circuit...................................................... 40-374
Failure code [DXA8KA] PC-EPC Sol Open Circuit............................................................... 40-375
Failure code [DXA8KB] PC-EPC Sol Short Circuit............................................................... 40-377
Failure code [DXE4KA] Attachment Flow EPC Open Circuit ................................................ 40-379
Failure code [DXE4KB] Attachment Flow EPC Short Circuit................................................. 40-381
Failure code [DY20KA] Wiper Working Abnormality ............................................................ 40-382
Failure code [DY20MA] Wiper Parking Abnormality............................................................. 40-384
Failure code [DY2CKB] Washer Drive Short Circuit............................................................. 40-386
Failure code [DY2DKB] Wiper Drive (Fwd) Short Circuit ...................................................... 40-388
Failure code [DY2EKB] Wiper Drive (Rev) Short Circuit ....................................................... 40-390
Troubleshooting of electrical system (E-mode) .......................................................................... 40-392
E-1 Engine does not start (Engine does not crank) .............................................................. 40-392
E-2 Manual preheating system does not work..................................................................... 40-398
E-3 Automatic preheating system does not work................................................................. 40-401
E-4 While preheating is working, preheating monitor does not light up .................................. 40-403
E-5 When starting switch is turned to ON position, machine monitor displays nothing............. 40-405
E-6 While starting switch is turned to ON position (with engine stopped), engine oil level
monitor lights up in yellow.................................................................................... 40-408
E-7 While starting switch is turned to ON position (with engine stopped), radiator coolant level
monitor lights up in yellow.................................................................................... 40-409
E-8 Engine coolant temperature monitor lights up in red while engine is running .................... 40-410
E-9 Hydraulic oil temperature monitor lights up in red while engine is running ........................ 40-411
E-10 Charge level monitor lights up in red while engine is running ........................................ 40-412
E-11 Fuel level monitor lights up in red while engine is running............................................. 40-413
E-12 Air cleaner clogging monitor lights up in yellow while engine is running ......................... 40-414
E-13 Water separator monitor lights up in red while engine is running ................................... 40-415
E-14 Engine coolant temperature monitor lights up in red while engine is running .................. 40-416
E-15 Hydraulic oil temperature monitor lights up in red while engine is running ...................... 40-417
E-16 Engine oil pressure monitor lights up in red while engine is running .............................. 40-418
E-17 Fuel gauge display does not move from minimum or maximum .................................... 40-419
E-18 Fuel gauge indicates incorrect amount (indicates neither full nor empty)........................ 40-420
E-19 Engine coolant temperature gauge display does not move from minimum or
maximum........................................................................................................... 40-421
E-20 Engine coolant temperature gauge indicates incorrect temperature (indicates neither full
nor empty).......................................................................................................... 40-422
E-21 Hydraulic oil temperature gauge does not move from minimum or maximum ................. 40-423
E-22 Hydraulic oil temperature gauge indicates incorrect temperature (indicates neither full nor
empty) ............................................................................................................... 40-425
E-23 Contents of display on machine monitor is different from actual machine
condition ............................................................................................................ 40-426
E-24 Some areas of machine monitor screen are not displayed............................................ 40-427
E-25 Function switch does not work................................................................................... 40-428
E-26 Automatic warm-up system does not operate (in cold season)...................................... 40-429
PC170LC-10 00-7
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00 Index and foreword
Index
E-27 Auto-deceleration monitor does not light up, or does not go out, while auto-deceleration
switch is operated ............................................................................................... 40-430
E-28 Auto-deceleration function does not operate or is not canceled while lever is
operated ............................................................................................................ 40-431
E-29 Working mode selection screen is not displayed while working mode selector switch is
operated ............................................................................................................ 40-432
E-30 Setting of engine and hydraulic pump is not changed while working mode is
changed............................................................................................................. 40-433
E-31 Travel speed monitor does not change when travel speed switch is operated ................ 40-434
E-32 Travel speed does not change while travel speed selection is changed......................... 40-435
E-33 Alarm buzzer does not stop sounding......................................................................... 40-436
E-34 Service meter is not displayed, while starting switch is in OFF position.......................... 40-437
E-35 Service mode cannot be selected .............................................................................. 40-438
E-36 Any of work equipment, swing and travel does not work............................................... 40-439
E-37 Any of work equipment, swing and travel cannot be locked .......................................... 40-441
E-38 Upper structure does not swing while swing parking brake cancel switch is set to
CANCEL position................................................................................................ 40-443
E-39 Swing brake does not operate while swing parking brake cancel switch is set to NORMAL
position.............................................................................................................. 40-445
E-40 One-touch power maximizing function does not operate, or indicator is not displayed on
monitor .............................................................................................................. 40-447
E-41 One-touch power maximizing function cannot be canceled .......................................... 40-449
E-42 Alarm does not sound during travel............................................................................ 40-450
E-43 Alarm does not stop sounding while machine is stopped.............................................. 40-451
E-44 Horn does not sound ................................................................................................ 40-452
E-45 Horn does not stop sounding..................................................................................... 40-454
E-46 Wiper monitor does not light up, or does not go out, while wiper switch is
operated ............................................................................................................ 40-455
E-47 Wiper does not operate while wiper switch is operated ................................................ 40-456
E-48 Window washer does not operate while window washer switch is operated ................... 40-458
E-49 Boom LOWER is not displayed correctly with monitoring function................................. 40-459
E-50 Arm OUT is not displayed correctly with monitoring function ......................................... 40-460
E-51 Arm IN is not displayed correctly with monitoring function ............................................ 40-461
E-52 Boom RAISE is not displayed correctly with monitoring function ................................... 40-462
E-53 Bucket CURL is not displayed correctly with monitoring function................................... 40-463
E-54 Bucket DUMP is not displayed correctly with monitoring function.................................. 40-464
E-55 Swing is not displayed correctly with monitoring function.............................................. 40-465
E-56 Travel is not displayed correctly with monitoring function ............................................. 40-466
E-57 Service is not displayed correctly with monitoring function ........................................... 40-468
E-58 Attachment hydraulic circuit cannot be changed.......................................................... 40-470
E-59 KOMTRAX system does not operate normally ............................................................ 40-471
Troubleshooting of hydraulic and mechanical system (H-mode) .................................................. 40-472
Information described in troubleshooting table (H-mode) ..................................................... 40-472
System chart of hydraulic and mechanical systems............................................................. 40-473
Failure mode and cause table ........................................................................................... 40-475
H-1 All of work equipments, swing and travel operations lack speed or power ....................... 40-483
H-2 Engine speed drops significantly or engine stalls .......................................................... 40-485
H-3 All work equipment, swing and travel does not work ...................................................... 40-486
H-4 Unusual sound is heard from around hydraulic pump .................................................... 40-487
H-5 Fine control performance or response is poor ............................................................... 40-488
H-6 Boom speed or power is low ....................................................................................... 40-489
H-7 Arm speed or power is low.......................................................................................... 40-492
H-8 Bucket speed or power is low...................................................................................... 40-495
H-9 Work equipment does not move in single operation....................................................... 40-497
H-10 Hydraulic drift of boom is large .................................................................................. 40-498
H-11 Hydraulic drift of arm is large ..................................................................................... 40-499
H-12 Hydraulic drift of bucket is large ................................................................................. 40-500
H-13 Time lag of work equipment is large ........................................................................... 40-501
00-8 PC170LC-10
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