Komatsu PC128UU PC128US PC138US PC138USLC PC158US Excavator Workshop Repair & Operation Manual PDF - MKMTSPC128UU158US.zip
A full workshop-level service and repair guide, complete with Electrical Wiring Diagrams, covering the Komatsu Hydraulic Excavator models PC128UU-2, PC128US-2, PC138US-2, PC138US-8, PC138USLC-8, PC138USLC-2E0, PC138USLC-10, and PC158US-2. It delivers every technical detail needed to service, troubleshoot, overhaul, and rebuild these machines to the standard of expert technicians.
This Komatsu Hydraulic Excavator PC128UU-2, PC128US-2, PC138US-2, PC138US-8, PC138USLC-8, PC138USLC-2E0, PC138USLC-10, PC158US-2 factory service repair manual contains:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
PRODUCT DETAILS:
Total Pages: 11,081 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
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MAIN SECTIONS
Cover...1
00 Index and foreword ...3
Index ...4
Foreword, safety and general information ...15
Important safety notice ...15
How to read the shop manual ...22
Explanation of terms for maintenance standard ...24
Handling equipment of fuel system devices ...26
Handling of intake system parts ...27
Handling of hydraulic equipment ...28
Method of disconnecting and connecting of push-pull type coupler ...30
Handling of electrical equipment ...33
How to read electric wire code ...41
Precautions when performing operation ...44
Practical use of KOMTRAX ...49
Standard tightening torque table ...50
List of abbreviation ...56
Conversion table ...61
01 Specification ...67
Table of contents ...68
Specifications ...69
Specification drawing ...69
Working range drawings ...70
Specifications ...71
Weight table ...75
Table of fuel, coolant, and lubricants ...77
10 Structure and function ...79
Table of contents ...80
Engine and cooling system ...81
Engine related parts ...81
PTO ...83
VFT ...84
EGR system piping drawing ...88
EGR system circuit diagram ...90
EGR valve ...91
EGR cooler ...93
KCCV layout drawing ...95
KCCV ventilator ...97
KDOC muffler ...99
Cooling system ...101
Power train ...103
Power train system ...103
Swing circle ...105
Swing machinery ...106
Undercarriage and frame ...108
Track frame ...108
Idler cushion ...109
Hydraulic system ...110
Hydraulic component layout ...110
Valve control ...112
Hydraulic tank ...113
CLSS ...115
Main pump ...119
Control valve ...146
Swing motor ...191
Travel motor ...203
Work equipment and swing PPC valve ...214
Travel PPC valve ...221
Blade PPC valve ...227
1st-line attachment PPC valve (with EPC valve) ...229
Solenoid valve ...237
Attachment circuit selector valve (for low pressure circuit) ...243
Attachment circuit selector valve (for high pressure circuit) ...246
Multi-control valve ...248
Center swivel joint ...249
PPC circuit accumulator ...251
Attachment circuit accumulator (for low pressure circuit) ...252
Attachment circuit accumulator (for high pressure circuit) ...253
Work equipment ...254
Work equipment ...254
Work equipment shim ...255
Bucket play adjustment shim ...256
Cab and its attachments ...257
Cab mount and cab tipping stopper ...257
ROPS cab ...258
Electrical system ...260
Electrical control system ...260
Machine monitor system ...292
KOMTRAX system ...313
Sensor ...330
20 Standard value tables ...343
Table of contents ...344
Standard service value table ...345
Standard value table for engine ...345
Standard value table for machine ...346
Standard value table for electrical system ...359
30 Testing and adjusting ...365
Table of contents ...366
General information on testing and adjusting ...367
Tools for testing and adjusting ...367
Sketch of tools for testing and adjusting ...370
Engine and cooling system ...372
Testing engine speed ...372
Testing exhaust gas color ...373
Testing and adjusting valve clearance ...374
Testing compression pressure ...376
Testing blowby pressure ...379
Testing engine oil pressure ...380
Testing fuel pressure ...381
Testing fuel return rate and leakage ...382
Bleeding air from fuel system ...385
Testing fuel circuit for leakage ...387
Handling cylinder cutout mode operation ...388
Handling no-injection cranking operation ...389
Checking and adjusting air conditioner compressor belt tension ...390
Replacing fan belt ...391
Writing compensation values at replacement of injector and engine controller ...392
Power train ...396
Testing swing circle bearing clearance ...396
Undercarriage and frame ...397
Testing and adjusting track shoe tension ...397
Hydraulic system ...398
Releasing remaining pressure from hydraulic circuit ...398
Testing and adjusting oil pressure in work equipment, swing, and travel circuits ...399
Testing oil pressure of control circuit ...402
Testing and adjusting oil pressure in pump PC control circuit ...403
Testing and adjusting oil pressure in pump LS control circuit ...406
Testing outlet pressure of solenoid valve ...411
Testing PPC valve output pressure ...412
Adjusting play of work equipment and swing PPC valves ...414
Isolating the parts causing hydraulic drift in work equipment ...415
Testing and adjusting travel deviation ...416
Testing oil leakage ...418
Bleeding air from hydraulic circuit ...420
Cab and its attachments ...423
Checking cab tipping stopper ...423
Testing, cleaning and lubricating slide door rail and roller ...424
Adjusting mirrors ...425
Electrical system ...427
Special functions of machine monitor ...427
Adjusting rearview camera angle ...479
Handling voltage circuit of engine controller ...481
Handling battery disconnect switch ...482
Testing diodes ...483
Pm clinic ...484
Pm Clinic service ...484
40 Troubleshooting ...491
Table of contents ...492
General information on troubleshooting ...497
Troubleshooting points ...497
Sequence of events in troubleshooting ...499
Checks before troubleshooting ...501
Inspection procedure before troubleshooting ...503
Preparation for troubleshooting of electrical system ...520
Classification and procedure for troubleshooting ...524
Symptom and troubleshooting numbers ...527
Information in troubleshooting table ...530
Troubleshooting method for open circuit in wiring harness of pressure sensor system ...532
Connector list and layout ...534
Connector contact identification ...544
T-branch box and T-branch adapter table ...582
Fuse location table ...587
Failure codes table ...589
Troubleshooting by failure code (Display of code) ...595
Failure code [879AKA] A/C Inner Sensor Open Circuit ...595
Failure code [879AKB] A/C Inner Sensor Short Circuit ...596
Failure code [879BKA] A/C Outer Sensor Open Circuit ...597
Failure code [879BKB] A/C Outer Sensor Short Circuit ...598
Failure code [879CKA] Ventilating Sensor Open Circuit ...599
Failure code [879CKB] Ventilating Sensor Short Circuit ...600
Failure code [879DKZ] Sunlight Sensor Open Or Short Circuit ...601
Failure code [879EMC] Ventilation Damper Abnormality ...602
Failure code [879FMC] Air Mix Damper Abnormality ...603
Failure code [879GKX] Refrigerant Abnormality ...604
Failure code [989L00] Engine Controller Lock Caution 1 ...605
Failure code [989M00] Engine Controller Lock Caution 2 ...606
Failure code [989N00] Engine Controller Lock Caution 3 ...607
Failure code [AB00KE] Charge Voltage Low ...608
Failure code [B@BAZG] Eng Oil Press Low ...610
Failure code [B@BAZK] Eng Oil Level Low ...611
Failure code [B@BCNS] Eng Water Overheat ...612
Failure code [CA115] Eng Ne and Bkup Speed Sens Error ...613
Failure code [CA122] Chg Air Press Sensor High Error ...614
Failure code [CA123] Chg Air Press Sensor Low Error ...616
Failure code [CA131] Throttle Sensor High Error ...618
Failure code [CA132] Throttle Sensor Low Error ...620
Failure code [CA144] Coolant Temp Sens High Error ...622
Failure code [CA145] Coolant Temp Sens Low Error ...624
Failure code [CA153] Chg Air Temp Sensor High Error ...626
Failure code [CA154] Chg Air Temp Sensor Low Error ...628
Failure code [CA187] Sensor 2 Supply Volt Low Error ...630
Failure code [CA221] Ambient Press Sensor High Error ...632
Failure code [CA222] Ambient Press Sensor Low Error ...634
Failure code [CA227] Sensor 2 Supply Volt High Error ...636
Failure code [CA234] Eng Overspeed ...637
Failure code [CA238] Ne Speed Sensor Supply Volt Error ...638