Komatsu PC170LC-10 Hydraulic Excavator Shop Manual SEN06367-05 PDF

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Komatsu PC170LC-10 Hydraulic Excavator Shop Manual SEN06367-05 – PDF DOWNLOAD

FILE DETAILS:

Komatsu PC170LC-10 Hydraulic Excavator Shop Manual SEN06367-05 – PDF DOWNLOAD 

Language : English
Pages : 1496
Downloadable : Yes
File Type : PDF

TABLE OF CONTENTS:

Komatsu PC170LC-10 Hydraulic Excavator Shop Manual SEN06367-05 – PDF DOWNLOAD 

SERIAL NUMBERS 30001 and up

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 74
Table of fuel, coolant, and lubricants 75
10 Structure and function 77
Table of contents 78
Engine and cooling system 79
Engine related parts 79
Variable flow turbocharger 81
EGR system piping drawing 85
EGR system circuit diagram 87
EGR valve 88
EGR cooler 90
KCCV layout drawing 92
KCCV ventilator 95
KDOC muffler 97
Cooling system 99
Power train 101
Power train system 101
Swing circle 103
Swing machinery 104
Final drive 106
Undercarriage and frame 108
Track frame and idler cushion 108
Hydraulic system 110
Hydraulic component layout 110
Valve control 113
Hydraulic tank 115
CLSS 117
Main pump 121
Control valve 147
Swing motor 195
Travel motor 197
PPC valve 212
Solenoid valve 234
Attachment circuit selector valve (for high pressure circuit) 238
Attachment circuit selector valve (for low pressure circuit) 240
Anti-drop valve 243
Center swivel joint 251
Accumulator 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 259
Electrical control system 259
Machine monitor system 304
KOMTRAX system 326
Sensor 329
20 Standard value tables 347
Table of contents 348
Standard service value table 349
Standard value table for engine 349
Standard value table for machine 351
Standard value table for electrical system 365
30 Testing and adjusting 373
Table of contents 374
Related information on testing and adjusting 375
Tools for testing and adjusting 375
Sketch of tools for testing and adjusting 380
Engine and cooling system 381
Testing engine speed 381
Testing boost pressure 382
Testing exhaust gas color 384
Testing and adjusting valve clearance 385
Testing compression pressure 388
Testing blowby pressure 392
Testing engine oil pressure 393
Testing fuel pressure 394
Testing fuel discharge, return and leakage 399
Bleeding air from fuel system 404
Testing fuel circuit for leakage 406
Handling cylinder cutout mode operation 407
Handling no-injection cranking operation 408
Testing and adjusting air conditioner compressor belt tension 409
Replacing fan belt 410
Power train 411
Testing swing circle bearing clearance 411
Undercarriage and frame 412
Testing and adjusting track tension 412
Hydraulic system 413
Releasing remaining pressure from hydraulic circuit 413
Testing oil pressure of control circuit 418
Testing and adjusting oil pressure in work equipment, swing, and travel circuits 419
Testing and adjusting oil pressure in pump PC control circuit 423
Testing and adjusting oil pressure in pump LS control circuit 426
Testing outlet pressure of solenoid valve 430
Testing PPC valve outlet pressure 433
Adjusting play of work equipment and swing PPC valves 435
Testing pump swash plate sensor 436
Isolating the parts causing hydraulic drift in work equipment 437
Testing and adjusting travel deviation 439
Testing oil leakage 441
Bleeding air from hydraulic circuit 444
Testing and charging accumulator (manufactured by NOK) nitrogen gas pressure for attachment (low pressure side) 446
Testing and charging accumulator nitrogen gas pressure for attachment (high pressure side) 448
Replacing accumulator bladder on high pressure side for accumulator piping 450
Cab and its attachments 456
Testing cab tipping stopper 456
Adjusting mirrors 457
Electrical system 459
Special functions of machine monitor 459
KOMTRAX terminal start-up procedure 518
Adjusting rearview camera angle 521
Handling voltage circuit of engine controller 523
Handling battery disconnect switch 524
Testing diodes 525
Pm clinic 526
Pm Clinic service 526
40 Troubleshooting 537
Table of contents 538
Related information on troubleshooting 544
Troubleshooting points 544
Sequence of events in troubleshooting 546
Checks before troubleshooting 548
Inspection procedure before troubleshooting 550
Preparation work for troubleshooting of electrical system 568
Classification and procedure for troubleshooting 573
Symptom and troubleshooting numbers 576
Information in troubleshooting table 579
Procedure for troubleshooting wiring harness of pressure sensor system for open circuit 581
Connector list and layout 584
Connector contact identification 594
T-branch box and T-branch adapter table 633
Fuse location table 638
Failure codes table 640
Troubleshooting by failure code (Display of code) 647
Failure code [879AKA] A/C Inner Sensor Open Circuit 647
Failure code [879AKB] A/C Inner Sensor Short Circuit 648
Failure code [879BKA] A/C Outer Sensor Open Circuit 649
Failure code [879BKB] A/C Outer Sensor Short Circuit 650
Failure code [879CKA] Ventilating Sensor Open Circuit 651
Failure code [879CKB] Ventilating Sensor Short Circuit 652
Failure code [879DKZ] Sunlight Sensor Open Or Short Circuit 653
Failure code [879EMC] Ventilation Damper Abnormality 654
Failure code [879FMC] Air Mix Damper Abnormality 655
Failure code [879GKX] Refrigerant Abnormality 656
Failure code [989L00] Engine Controller Lock Caution 1 657
Failure code [989M00] Engine Controller Lock Caution 2 658
Failure code [989N00] Engine Controller Lock Caution 3 659
Failure code [AA10NX] Air Cleaner Clogging 660
Failure code [AB00KE] Charge Voltage Low 662
Failure code [B@BAZG] Eng Oil Press Low 664
Failure code [B@BAZK] Eng Oil Level Low 665
Failure code [B@BCNS] Eng Water Overheat 666
Failure code [B@BCZK] Eng Water Level Low 667
Failure code [B@HANS] Hyd Oil Overheat 669
Failure code [CA115] Eng Ne and Bkup Speed Sens Error 670
Failure code [CA122] Chg Air Press Sensor High Error 671
Failure code [CA123] Chg Air Press Sensor Low Error 673
Failure code [CA131] Throttle Sensor High Error 675
Failure code [CA132] Throttle Sensor Low Error 677
Failure code [CA144] Coolant Temp Sens High Error 679
Failure code [CA145] Coolant Temp Sens Low Error 681
Failure code [CA153] Chg Air Temp Sensor High Error 683
Failure code [CA154] Chg Air Temp Sensor Low Error 685
Failure code [CA187] Sensor 2 Supply Volt Low Error 687
Failure code [CA221] Ambient Press Sensor High Error 689
Failure code [CA222] Ambient Press Sens Low Error 691
Failure code [CA227] Sensor 2 Supply Volt High Error 693
Failure code [CA234] Eng Overspeed 694
Failure code [CA238] Ne Speed Sensor Supply Volt Error 695
Failure code [CA239] Ne Speed Sens Supply Volt High Error 696
Failure code [CA271] IMV/PCV1 Short Error 697
Failure code [CA272] IMV/PCV1 Open Error 699
Failure code [CA295] Ambient Press Sens In Range Error 701
Failure code [CA322] Inj #1(L#1) Open/Short Error 702
Failure code [CA324] Inj #3(L#3) Open/Short Error 704
Failure code [CA331] Inj #2(L#2) Open/Short Error 706
Failure code [CA332] Inj #4(L#4) Open/Short Error 708
Failure code [CA343] ECM Critical Internal Failure 710
Failure code [CA351] Injectors Drive Circuit Error 711
Failure code [CA352] Sensor 1 Supply Volt Low Error 712
Failure code [CA356] Mass Air Flow Sensor High Error 714
Failure code [CA357] Mass Air Flow Sensor Low Error 716
Failure code [CA386] Sensor 1 Supply Volt High Error 718
Failure code [CA428] Water in Fuel Sensor High Error 719
Failure code [CA429] Water in Fuel Sensor Low Error 721
Failure code [CA435] Eng Oil Press Sw Error 723
Failure code [CA441] Battery Voltage Low Error 724
Failure code [CA442] Battery Voltage High Error 726
Failure code [CA449] Rail Press Very High Error 727
Failure code [CA451] Rail Press Sensor High Error 728
Failure code [CA452] Rail Press Sensor Low Error 730
Failure code [CA466] KVGT Motor Driver Position Error 732
Failure code [CA488] Chg Air Temp High Torque Derate 734
Failure code [CA515] Rail Press Sens Sup Volt High Error 735
Failure code [CA516] Rail Press Sens Sup Volt Low Error 737
Failure code [CA553] Rail Press High Error 739
Failure code [CA555] Crankcase Press High Error 1 740
Failure code [CA556] Crankcase Press High Error 2 741
Failure code [CA559] Rail Press Low Error 742
Failure code [CA689] Eng Ne Speed Sensor Error 746
Failure code [CA691] Intake Air Temp Sens High Error 748
Failure code [CA692] Intake Air Temp Sens Low Error 750
Failure code [CA697] ECM Internal Temp Sensor High Error 752
Failure code [CA698] ECM Int Temp Sensor Low Error 753
Failure code [CA731] Eng Bkup Speed Sens Phase Error 754
Failure code [CA778] Eng Bkup Speed Sensor Error 755
Failure code [CA1117] Persistent Data Lost Error 758
Failure code [CA1695] Sensor 5 Supply Volt High Error 759
Failure code [CA1696] Sensor 5 Supply Volt Low Error 760
Failure code [CA1843] Crankcase Press Sens High Error 761
Failure code [CA1844] Crankcase Press Sens Low Error 763
Failure code [CA1896] EGR Valve Stuck Error 765
Failure code [CA1942] Crankcase Press Sens In Range Error 766
Failure code [CA1961] EGR_Motor Driver IC Over Temp Error 767
Failure code [CA2185] Throt Sensor Sup Volt High Error 768
Failure code [CA2186] Throt Sensor Sup Volt Low Error 770
Failure code [CA2249] Rail Press Very Low Error 772
Failure code [CA2272] EGR Valve Pos Sens Low Error 773
Failure code [CA2311] IMV Solenoid Error 775
Failure code [CA2349] EGR Valve Solenoid Open Error 776
Failure code [CA2353] EGR Valve Solenoid Short Error 778
Failure code [CA2357] EGR Valve Servo Error 780
Failure code [CA2373] Exhaust Manifold Press Sens High Error 781
Failure code [CA2374] Exhaust Manifold Press Sens Low Error 783
Failure code [CA2375] EGR Orifice Temp Sens High Error 785
Failure code [CA2376] EGR Orifice Temp Sens Low Error 787
Failure code [CA2554] Exh Manifold Press Sens In Range Error 789
Failure code [CA2555] Grid Htr Relay Volt Low Error 790
Failure code [CA2556] Grid Htr Relay Volt High Error 792
Failure code [CA2961] EGR Orifice Temp High Error 1 794
Failure code [CA2973] Chg Air Press Sensor In Range Error 795
Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error 796
Failure code [CA3421] Mass Air Flow Sensor Sup Volt Low Error 798
Failure code [CA3724] EGR/KVGT Motor Driver Power Low Error 800
Failure code [CA3741] Rail Press Valve Trip Error 802
Failure code [CA3918] KVGT Stuck Error 803
Failure code [CA3919] KVGT Motor Driver IC Over Temp Error 804
Failure code [CA3921] KVGT Servo Error 2 805
Failure code [CA3922] KVGT Motor Driver Open Error 806
Failure code [CA3923] KVGT Motor Driver Short Error 808
Failure code [D110KB] Battery Relay Drive Short Circuit 810
Failure code [D19JKZ] Personal Code Relay Abnormality 812
Failure code [D811MC] KOMTRAX Error 815
Failure code [D862KA] GPS Antenna Open Circuit 816
Failure code [D8ALKA] System Operating Lamp Disconnection (KOMTRAX) 817
Failure code [D8ALKB] System Operating Lamp Short Circuit (KOMTRAX) 819
Failure code [D8AQKR] CAN2 Discon (KOMTRAX) 820
Failure code [DA20MC] Pump Controller Malfunction 822
Failure code [DA22KK] Pump Solenoid Power Low Error 823
Failure code [DA25KP] 5V Sensor 1 Power Abnormality 825
Failure code [DA29KQ] Model Selection Abnormality 827
Failure code [DA2LKA] System Operating Lamp Disconnection (Pump Con) 829
Failure code [DA2LKB] System Operating Lamp Short Circuit (Pump Con) 831
Failure code [DA2QKR] CAN2 Discon (Pump Con) 832
Failure code [DA2RKR] CAN1 Discon (Pump Con) 834
Failure code [DAF0MB] Monitor ROM Abnormality 835
Failure code [DAF0MC] Monitor Error 836
Failure code [DAF8KB] Camera Power Supply Short Circuit 837
Failure code [DAF9KQ] Model Selection Abnormality 839
Failure code [DAFGMC] GPS Module Error 840
Failure code [DAFLKA] Operating Lamp Open Circuit(Monitor) 841
Failure code [DAFLKB] System Operating Lamp Short Circuit (Monitor) 843
Failure code [DAFQKR] CAN2 Discon (Monitor) 844
Failure code [DAZ9KQ] A/C Model Selection Abnormality 845
Failure code [DAZQKR] CAN2 Discon (Aircon ECU) 846
Failure code [DB2QKR] CAN2 Discon (Engine Con) 850
Failure code [DB2RKR] CAN1 Discon (Engine Con) 854
Failure code [DGH2KB] Hyd Oil Sensor Short Circuit 859
Failure code [DHA4KA] Air Cleaner Clogging Sensor Open Circuit 861
Failure code [DHPAMA] F Pump Press Sensor Abnormality 863
Failure code [DHPBMA] R Pump Press Sensor Abnormality 865
Failure code [DHS3MA] Arm Curl PPC Press Sensor Abnormality 867
Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality 869
Failure code [DHS8MA] Boom Raise PPC Press Sensor Abnormality 871
Failure code [DHS9MA] Boom Lower PPC Press Sensor Abnormality 873
Failure code [DHSAMA] Swing RH PPC Press Sensor Abnormality 875
Failure code [DHSBMA] Swing LH PPC Press Sensor Abnormality 877
Failure code [DHSCMA] Arm Dump PPC Press Sensor Abnormality 879
Failure code [DHSDMA] Bucket Dump PPC Press Sensor Abnormality 881
Failure code [DKR0MA] Pump Swash Plate Sensor Abnormality 883
Failure code [DR21KX] Camera 2 Picture Rev Drive Abnormality 885
Failure code [DR31KX] Camera 3 Picture Rev Drive Abnormality 887
Failure code [DV20KB] Travel Alarm Short Circuit 888
Failure code [DW43KA] Travel Speed Sol Open Circuit 890
Failure code [DW43KB] Travel Speed Sol Short Circuit 892
Failure code [DW45KA] Swing Brake Sol Open Circuit 894
Failure code [DW45KB] Swing Brake Sol Short Circuit 897
Failure code [DW91KA] Travel Junction Sol Open Circuit 899
Failure code [DW91KB] Travel Junction Sol Short Circuit 901
Failure code [DWA2KA] Attachment Sol Open Circuit 903
Failure code [DWA2KB] Attachment Sol Short Circuit 905
Failure code [DWJ0KA] Merge-divider Sol Open Circuit 906
Failure code [DWJ0KB] Merge-divider Sol Short Circuit 907
Failure code [DWK0KA] 2-Stage Relief Sol Open Circuit 908
Failure code [DWK0KB] 2-Stage Relief Sol Short Circuit 910
Failure code [DXA8KA] PC-EPC Sol Open Circuit 911
Failure code [DXA8KB] PC-EPC Sol Short Circuit 913
Failure code [DXE4KA] Attachment Flow EPC Open Circuit 915
Failure code [DXE4KB] Attachment Flow EPC Short Circuit 917
Failure code [DY20KA] Wiper Working Abnormality 918
Failure code [DY20MA] Wiper Parking Abnormality 920
Failure code [DY2CKB] Washer Drive Short Circuit 922
Failure code [DY2DKB] Wiper Drive (Fwd) Short Circuit 924
Failure code [DY2EKB] Wiper Drive (Rev) Short Circuit 926
Troubleshooting of electrical system (E-mode) 928
E-1 Engine does not start (Engine does not crank) 928
E-2 Manual preheating system does not work 934
E-3 Automatic preheating system does not work 937
E-4 While preheating is working, preheating monitor does not light up 939
E-5 When starting switch is turned to ON position, machine monitor displays nothing 941
E-6 While starting switch is turned to ON position (with engine stopped), engine oil level monitor lights up in yellow 944
E-7 While starting switch is turned to ON position (with engine stopped), radiator coolant level monitor lights up in yellow 945
E-8 Engine coolant temperature monitor lights up in red while engine is running 946
E-9 Hydraulic oil temperature monitor lights up in red while engine is running 947
E-10 Charge level monitor lights up in red while engine is running 948
E-11 Fuel level monitor lights up in red while engine is running 949
E-12 Air cleaner clogging monitor lights up in yellow while engine is running 950
E-13 Water separator monitor lights up in red while engine is running 951
E-14 Engine coolant temperature monitor lights up in red while engine is running 952
E-15 Hydraulic oil temperature monitor lights up in red while engine is running 953
E-16 Engine oil pressure monitor lights up in red while engine is running 954
E-17 Fuel gauge display does not move from minimum or maximum 955
E-18 Fuel gauge indicates incorrect amount (indicates neither full nor empty) 956
E-19 Engine coolant temperature gauge display does not move from minimum or maximum 957
E-20 Engine coolant temperature gauge indicates incorrect temperature (indicates neither full nor empty) 958
E-21 Hydraulic oil temperature gauge does not move from minimum or maximum 959
E-22 Hydraulic oil temperature gauge indicates incorrect temperature (indicates neither full nor empty) 961
E-23 Contents of display on machine monitor is different from actual machine condition 962
E-24 Some areas of machine monitor screen are not displayed 963
E-25 Function switch does not work 964
E-26 Automatic warm-up system does not operate (in cold season) 965
E-27 Auto-deceleration monitor does not light up, or does not go out, while auto-deceleration switch is operated 966
E-28 Auto-deceleration function does not operate or is not canceled while lever is operated 967
E-29 Working mode selection screen is not displayed while working mode selector switch is operated 968
E-30 Setting of engine and hydraulic pump is not changed while working mode is changed 969
E-31 Travel speed monitor does not change when travel speed switch is operated 970
E-32 Travel speed does not change while travel speed selection is changed 971
E-33 Alarm buzzer does not stop sounding 972
E-34 Service meter is not displayed, while starting switch is in OFF position 973
E-35 Service mode cannot be selected 974
E-36 Any of work equipment, swing and travel does not work 975
E-37 Any of work equipment, swing and travel cannot be locked 977
E-38 Upper structure does not swing while swing parking brake cancel switch is set to CANCEL position 979
E-39 Swing brake does not operate while swing parking brake cancel switch is set to NORMAL position 981
E-40 One-touch power maximizing function does not operate, or indicator is not displayed on monitor 983
E-41 One-touch power maximizing function cannot be canceled 985
E-42 Alarm does not sound during travel 986
E-43 Alarm does not stop sounding while machine is stopped 987
E-44 Horn does not sound 988
E-45 Horn does not stop sounding 990
E-46 Wiper monitor does not light up, or does not go out, while wiper switch is operated 991
E-47 Wiper does not operate while wiper switch is operated 992
E-48 Window washer does not operate while window washer switch is operated 994
E-49 Boom LOWER is not displayed correctly with monitoring function 995
E-50 Arm OUT is not displayed correctly with monitoring function 996
E-51 Arm IN is not displayed correctly with monitoring function 997
E-52 Boom RAISE is not displayed correctly with monitoring function 998
E-53 Bucket CURL is not displayed correctly with monitoring function 999
E-54 Bucket DUMP is not displayed correctly with monitoring function 1000
E-55 Swing is not displayed correctly with monitoring function 1001
E-56 Travel is not displayed correctly with monitoring function 1002
E-57 Service is not displayed correctly with monitoring function 1004
E-58 Attachment hydraulic circuit cannot be changed 1006
E-59 KOMTRAX system does not operate normally 1007
Troubleshooting of hydraulic and mechanical system (H-mode) 1008
Information described in troubleshooting table (H-mode) 1008
System chart of hydraulic and mechanical systems 1009
Failure mode and cause table 1011
H-1 All of work equipments, swing and travel operations lack speed or power 1019
H-2 Engine speed drops significantly or engine stalls 1021
H-3 All work equipment, swing and travel does not work 1022
H-4 Unusual sound is heard from around hydraulic pump 1023
H-5 Fine control performance or response is poor 1024
H-6 Boom speed or power is low 1025
H-7 Arm speed or power is low 1028
H-8 Bucket speed or power is low 1031
H-9 Work equipment does not move in single operation 1033
H-10 Hydraulic drift of boom is large 1034
H-11 Hydraulic drift of arm is large 1035
H-12 Hydraulic drift of bucket is large 1036
H-13 Time lag of work equipment is large 1037
H-14 When part of work equipment is relieved singly, other parts of work equipment move 1039
H-15 One-touch power maximizing function does not operate 1040
H-16 In combined operation of work equipment, equipment having heavier load moves slower 1041
H-17 In combined operations of swing and boom RAISE, boom rising speed is low 1042
H-18 In combined operation of swing and travel, travel speed drops largely 1043
H-19 Machine does not travel straight 1044
H-20 Travel speed is slow 1046
H-21 Machine is hard to steer or travel power is low 1048
H-22 Travel speed does not change, or travel speed is too slow or fast 1051
H-23 One of tracks does not run 1052
H-24 Upper structure does not swing to the right or left 1054
H-25 Upper structure swing only to the right or left 1055
H-26 Swing acceleration or swing speed is low in both directions (right and left) 1056
H-27 Swing acceleration performance is poor or swing speed is slow in only one direction 1057
H-28 Upper structure overruns excessively when it stops swinging (both right and left) 1058
H-29 Upper structure overruns excessively when it stops swinging (either right or left) 1059
H-30 Shock is large when upper structure stops swinging 1060
H-31 Large unusual noise is heard when upper structure stops swinging 1061
H-32 Swing drift on a slope is large while swing parking brake is applied 1062
H-33 Swing drift on a slope is large while swing parking brake is released 1063
H-34 Attachment hydraulic circuit cannot be changed while attachment is installed 1064
H-35 Oil flow in attachment circuit cannot be controlled 1065
Troubleshooting of engine (S-mode) 1066
Information mentioned in troubleshooting table (S mode) 1066
S-1 Engine does not crank when starting switch is turned to START position 1067
S-2 Engine cranks but no exhaust smoke comes out 1068
S-3 Fuel is being injected but engine does not start (misfiring: engine cranks but does not start) 1069
S-4 Engine startability is poor 1070
S-5 Engine does not pick up smoothly 1072
S-6 Engine stops during operation 1074
S-7 Engine runs rough or is unstable 1076
S-8 Engine lacks power 1077
S-9 Exhaust smoke is black 1079
S-10 Engine oil consumption is excessive 1081
S-11 Oil becomes contaminated quickly 1082
S-12 Fuel consumption is excessive 1083
S-13 Oil is in coolant (or coolant spurts or coolant level goes down) 1084
S-14 Oil pressure drops 1085
S-15 Fuel mixes into engine oil 1086
S-16 Water mixes into engine oil (milky) 1087
S-17 Coolant temperature rises too high (overheating) 1088
S-18 Unusual noise is heard 1089
S-19 Vibration is excessive 1090
S-20 Air cannot be bled from fuel circuit 1091
50 Disassembly and assembly 1093
Table of contents 1094
Related information on disassembly and assembly 1096
How to read this manual 1096
Coating materials list 1098
Special tools list 1102
Sketches of special tools 1107
Engine and cooling system 1111
Removal and installation of supply pump assembly 1111
Removal and installation of injector assembly 1115
Removal and installation of cylinder head assembly 1121
Removal and installation of radiator assembly 1138
Removal and installation of hydraulic oil cooler assembly 1140
Removal and installation of aftercooler assembly 1143
Removal and installation of engine and main pump assembly 1145
Removal and installation of engine front oil seal 1152
Removal and installation of engine rear oil seal 1156
Removal and installation of fuel cooler assembly 1159
Removal and installation of fuel tank assembly 1161
Removal and installation of engine hood assembly 1163
Removal and installation of KDOC assembly 1165
Removal and installation of KCCV assembly 1167
Removal and installation of air cleaner assembly 1172
Power train 1174
Removal and installation of travel motor and final drive assembly 1174
Disassembly and assembly of final drive assembly 1175
Removal and installation of swing motor and swing machinery assembly 1184
Disassembly and assembly of swing machinery assembly 1186
Removal and installation of swing circle assembly 1193
Undercarriage and frame 1194
Separation and connection of track shoe assembly 1194
Removal and installation of sprocket 1196
Removal and installation of idler and idler cushion assembly 1197
Disassembly and assembly of idler assembly 1198
Disassembly and assembly of idler cushion assembly 1201
Disassembly and assembly of track roller assembly 1203
Disassembly and assembly of carrier roller assembly 1205
Removal and installation of revolving frame assembly 1208
Removal and installation of counterweight assembly 1210
Hydraulic system 1212
Removal and installation of center swivel joint assembly 1212
Disassembly and assembly of center swivel joint assembly 1215
Removal and installation of hydraulic tank assembly 1216
Removal and installation of main pump assembly 1220
Removal and installation of main pump input shaft oil seal 1223
Removal and installation of control valve assembly 1224
Disassembly and assembly of control valve assembly 1228
Disassembly and assembly of work equipment PPC valve assembly 1230
Disassembly and assembly of travel PPC valve assembly 1232
Work equipment 1234
Removal and installation of work equipment assembly 1234
Disassembly and assembly of work equipment cylinder assembly 1237
Cab and its attachments 1249
Removal and installation of operator’s cab assembly 1249
Removal and installation of operator cab glass (adhered glass) 1254
Removal and installation of front window assembly 1264
Removal and installation of floor frame assembly 1270
Removal and installation of air conditioner unit assembly 1275
Removal and installation of operator’s seat 1279
Removal and installation of seat belt 1281
Removal and installation of front wiper assembly 1283
Electrical system 1290
Removal and installation of air conditioner compressor assembly 1290
Removal and installation of air conditioner condenser assembly 1292
Removal and installation of engine controller assembly 1294
Removal and installation of pump controller assembly 1296
Removal and installation of machine monitor assembly 1299
Removal and installation of pump swash plate sensor 1301
Removal and installation of mass air flow and temperature sensor 1302
Removal and installation of KOMTRAX terminal assembly 1303
60 Maintenance standard 1305
Table of contents 1306
Engine and cooling system 1307
Engine mount 1307
Cooling system 1308
Power train 1309
Swing circle 1309
Swing machinery 1310
Final drive 1311
Sprocket 1313
Undercarriage and frame 1315
Track frame and idler cushion 1315
Idler 1317
Track roller 1319
Carrier roller 1320
Track shoe 1321
Hydraulic system 1325
Hydraulic tank 1325
Main pump 1326
Control valve 1329
Travel motor 1340
Work equipment and swing PPC valve 1343
Travel PPC valve 1346
1st-line attachment PPC valve (with EPC valve) 1349
2nd-line attachment PPC valve 1352
Solenoid valve 1354
Attachment circuit selector valve (for high-pressure circuit) 1355
Attachment circuit selector valve (for low-pressure circuit) 1356
Center swivel joint 1361
Work equipment 1362
Work equipment 1362
Boom cylinder 1371
Arm cylinder 1372
Bucket cylinder 1373
80 Appendix 1375
Table of contents 1376
Air conditioner components 1377
Precautions for refrigerant 1377
Air conditioner component 1378
Configuration and function of refrigeration cycle 1381
Outline of refrigeration cycle 1382
Air conditioner unit 1384
Dual pressure switch 1391
Air conditioner controller 1392
Compressor 1393
Air conditioner condenser 1394
Sunlight sensor 1396
Outer temperature sensor (outside air temperature sensor) 1397
Procedure for testing and troubleshooting 1398
Circuit diagram and arrangement of connector pins 1400
System diagram 1402
Input and output signals of the air conditioner controller 1403
Parts and connectors layout 1405
Testing air leakage (duct) 1409
Testing with self-diagnosis function 1412
Testing vent (mode) changeover 1415
Testing FRESH/RECIRC air changeover 1417
Testing sunlight sensor 1418
Testing (dual) pressure switch for refrigerant 1419
Testing relays 1420
Troubleshooting chart 1 1421
Troubleshooting chart 2 1422
Information in troubleshooting table 1425
Failure code list related to air conditioner 1426
Failure code [879AKA] A/C Inner Sensor Open Circuit 1427
Failure code [879AKB] A/C Inner Sensor Short Circuit 1428
Failure code [879BKA] A/C Outer sensor Open Circuit 1429
Failure code [879BKB] A/C Outer sensor Short Circuit 1431
Failure code [879CKA] Ventilating Sensor Open Circuit 1433
Failure code [879CKB] Ventilating Sensor Short Circuit 1434
Failure code [879DKZ] Sunlight sensor Open or Short Circuit 1435
Failure code [879EMC] Ventilation Damper Abnormality 1437
Failure code [879FMC] Air Mix Damper Abnormality 1438
Failure code [879GKX] Refrigerant Abnormality 1439
A-1 Troubleshooting for power supply system (Air conditioner does not operate) 1440
A-2 Troubleshooting for compressor and refrigerant system (Air is not cooled) 1442
A-3 Troubleshooting for blower motor system (No air comes out or air flow is abnormal) 1445
A-4 Troubleshooting for FRESH/RECIRC air changeover 1447
Troubleshooting with gauge pressure 1449
Connection of service tool 1452
Precautions for disconnecting and connecting air conditioner piping 1454
Handling of compressor oil 1456
Desiccant replacement 1458
90 Diagrams and drawings 1461
Table of contents 1462
Hydraulic circuit diagram 1463
Symbols in hydraulic circuit diagram 1463
Hydraulic circuit diagram 1467
Electric circuit diagram 1469
Symbols in electric circuit diagram 1469
Electrical circuit diagram 1473
Electrical circuit diagram of air conditioner unit 1485
INDEX 1487

DESCRIPTION:

Komatsu PC170LC-10 Hydraulic Excavator Shop Manual SEN06367-05 – PDF DOWNLOAD 

SERIAL NUMBERS 30001 and up

Composition of shop manual
• This shop manual describes the technical information required for the services performed in a workshop.
The shop manual is divided into the following chapters for the convenience of use.
00. Index and foreword
• This section includes the index, foreword, safety and basic information.
01. Specification
• This section explains the specifications of the machine.
10. Structure and function
• This section explains the structure and function of the machine. The section of “Structure and function”
serves not only to give an understanding for the structure of each component, but also serves as
reference material for troubleshooting.
20. Standard value table
• The standard values for a new machine and trouble shooting are indicated. This standard value table is
used for testing and adjusting, and determining a failure at troubleshooting.
30. Testing and adjusting
• This section describes the measuring tools and how to measure, and how to adjust various parts. As for
the standard value and failure criterion, see the standard value table.
40. Troubleshooting
• This section describes the troubleshooting in a suspected area when a failure occurs and the remedy for
the failure. Troubleshooting is described by each failure mode.
50. Disassembly and assembly
• This section explains the procedures for removing, installing, disassembling, and assembling each part or
component and the special tools for the works as well as precautions for doing them safely. In addition,
tightening torque, and quantity and weight of coating material, oil, grease, and coolant required for the
works are also explained.
60. Maintenance standard
• This section describes the maintenance standard values for each component. This section gives the
criterion values for each component and required remedy at disassembly or maintenance.
80. Appendix
• The structure and function, testing and adjusting, and troubleshooting for all of the other components or
equipment which can not be separately classified are explained together in the appendix.
90. Diagrams and drawings
• This section gives hydraulic circuit diagrams and electrical circuit diagrams.

IMAGES PREVIEW OF THE MANUAL:

S.V  25/12/24