Komatsu PC350LC-8 PC350LCD-8 PC350NLC-8 PC350NLCD-8 Excavator Shop Manual UEN01983-00 PDF

Description

Komatsu PC350LC-8 PC350LCD-8 PC350NLC-8 PC350NLCD-8 Hydraulic Excavator Shop Manual UEN01983-00 – PDF DOWNLOAD 

FILE DETAILS:

Komatsu PC350LC-8 PC350LCD-8 PC350NLC-8 PC350NLCD-8 Hydraulic Excavator Shop Manual UEN01983-00 – PDF DOWNLOAD 

Language : English
Pages : 994
Downloadable : Yes
File Type : PDF

TABLE OF CONTENTS:

Komatsu PC350LC-8 PC350LCD-8 PC350NLC-8 PC350NLCD-8 Hydraulic Excavator Shop Manual UEN01983-00 – PDF DOWNLOAD 

SERIAL NUMBERS
PC350LC-8 K50001 and up
PC350LCD-8 K50001 and up
PC350NLC-8 K50001 and up
PC350NLCD-8 K50001 and up

00 Index and foreword 3
Index 3
Composition of shop manual 4
Table of contents 6
00 Index and foreword 13
Foreword and general information 13
Safety notice 14
How to read the shop manual 19
Explanation of terms for maintenance standard 21
Handling electric equipment and hydraulic component 23
How to read electric wire code 35
Precautions when carrying out operation 38
Method of disassembling and connecting push-pull type coupler 41
Standard tightening torque table 44
Conversion table 48
01 Specification 55
Specification and technical data 55
Specification dimension drawings 56
Specifications 58
Weight table 61
Table of fuel, coolant and lubricants 62
10 Structure, function and maintenance standard 65
Engine and cooling system 65
Engine related parts 66
Radiator, oil cooler and aftercooler 67
10 Structure, function and maintenance standard 69
Power train 69
Power train 70
Final drive 72
Sprocket 74
Swing machinery 76
Swing circle 78
10 Structure, function and maintenance standard 81
Undercarriage and frame 81
Track frame and recoil spring 82
Idler 84
Carrier roller 86
Track roller 87
Track shoe 88
10 Structure, function and maintenance standard 93
Hydraulic system, Part 1 93
Hydraulic equipment layout drawing 94
Hydraulic tank and filter 96
Hydraulic pump 98
10 Structure, function and maintenance standard 123
Hydraulic system, Part 2 123
Control valve 124
CLSS 136
Functions and operation by valve 140
Merge-divider valve 155
Attachment circuit selector valve 180
Hydraulic drift prevention valve 182
10 Structure, function and maintenance standard 189
Hydraulic system, Part 3 189
Valve control 190
PPC valve 192
Solenoid valve 214
PPC accumulator 216
Return oil filter 217
Center swivel joint 218
Travel motor 219
Swing motor 231
Hydraulic cylinder 240
10 Structure, function and maintenance standard 243
Work equipment 243
Work equipment 244
Work equipment 244
Dimensions of components 246
10 Structure, function and maintenance standard 251
Cab and its attachments 251
Air conditioner piping 252
10 Structure, function and maintenance standard 255
Electrical system 255
Engine control 256
Electronic control system 265
Monitor system 290
Sensor 317
KOMTRAX terminal system 320
20 Standard value table 323
Standard service value table 323
Standard value table for engine related parts 324
Standard value table for chassis related parts 325
30 Testing and adjusting 337
Testing and adjusting, Part 1 337
Tools for testing, adjusting and troubleshooting 339
Measuring engine speed 343
Measuring air boost pressure 344
Measuring exhaust gas color 345
Adjusting valve clearance 347
Measuring compression pressure 349
Measuring blow-by pressure 353
Measuring engine oil pressure 354
Measuring fuel pressure 355
Handling during cylinder cut-out operation 359
Handling during no injection cranking operation 359
Measuring fuel return rate and leakage 360
Bleeding air from fuel circuit 362
Checking fuel circuit for leakage 363
Testing and adjusting air compressor belt tension 364
Measuring clearance in swing circle bearings 365
Testing and adjusting track shoe tension 366
Testing and adjusting oil pressure in work equipment, swing and travel circuit 367
Testing and adjusting control circuit oil pressure 371
Testing and adjusting pump PC control circuit oil pressure 372
Testing and adjusting pump LS control circuit oil pressure 375
Measuring solenoid valve output pressure 380
Measuring PPC valve output pressure 384
Adjusting play of work equipment and swing PPC valves 385
Inspecting locations of hydraulic drift of work equipment 386
Releasing remaining pressure in hydraulic circuit 388
Measuring oil leakage amount 388
Bleeding air from various parts 391
Diode inspection procedures 393
30 Testing and adjusting 395
Testing and adjusting, Part 2 395
Special functions of machine monitor 396
30 Testing and adjusting 453
Testing and adjusting, Part 3 453
Handling voltage circuit of engine controller 454
Preparation work for troubleshooting of electrical system 455
Procedure for testing diodes 459
Pm clinic service 460
40 Troubleshooting 467
Failure code table and fuse locations 467
Failure codes table 468
Fuse locations 471
40 Troubleshooting 477
General information on troubleshooting 477
Points to remember when troubleshooting 478
Sequence of events in troubleshooting 479
Checks before troubleshooting 480
Classification and troubleshooting steps 481
Information in troubleshooting table 482
Connection table for connector pin numbers 487
T-adapter box and T-adapter table 521
40 Troubleshooting 525
Troubleshooting by failure code (Display of code), Part 1 525
Failure code [A000N1] Eng Hi Out of Std 527
Failure code [AA10NX] Air cleaner Clogging 528
Failure code [AB00KE] Charge Voltage Low 530
Failure code [B@BAZG] Eng Oil Press Low 532
Failure code [B@BAZK] Eng Oil Level Low 534
Failure code [B@BCNS] Eng Water Overheat 536
Failure code [B@BCZK] Eng Water Level Low 538
Failure code [B@HANS] Hydr Oil Overheat 540
Failure code [CA111] EMC Critical Internal Failure 541
Failure code [CA115] Eng Ne and Bkup Speed Sens Error 541
Failure code [CA122] Chg Air Press Sensor High Error 542
Failure code [CA123] Chg Air Press Sensor Low Error 544
Failure code [CA131] Throttle Sensor High Error 546
Failure code [CA132] Throttle Sensor Low Error 548
Failure code [CA144] Coolant Temp Sens High Error 550
Failure code [CA145] Coolant Temp Sens Low Error 552
Failure code [CA153] Chg Air Temp Sensor High Error 554
Failure code [CA154] Chg Air Temp Sensor Low Error 556
Failure code [CA187] Sens Supply 2 Volt Low Error 558
Failure code [CA221] Ambient Press Sens High Error 560
Failure code [CA222] Ambient Press Sens Low Error 562
Failure code [CA227] Sens Supply 2 Volt High Error 564
Failure code [CA234] Eng Overspeed 565
Failure code [CA238] Ne Speed Sens Supply Volt Error 566
Failure code [CA271] IMV/PCV1 Short Error 567
Failure code [CA272] IMV/PCV1 Open Error 568
Failure code [CA322] Inj #1 Open/Short Error 570
Failure code [CA323] Inj #5 Open/Short Error 572
Failure code [CA324] Inj #3 Open/Short Error 574
Failure code [CA325] Inj #6 Open/Short Error 576
Failure code [CA331] Inj #2 Open/Short Error 578
Failure code [CA332] Inj #4 Open/Short Error 580
40 Troubleshooting 583
Troubleshooting by failure code (Display of code), Part 2 583
Failure code [CA342] Calibration Code Incompatibility 585
Failure code [CA351] Injectors Drive Circuit Error 586
Failure code [CA352] Sens Supply 1 Volt Low Error 588
Failure code [CA386] Sens Supply 1 Volt High Error 590
Failure code [CA428] Water in Fuel Sensor High Error 592
Failure code [CA429] Water in Fuel Sensor Low Error 594
Failure code [CA441] Battery Voltage Low Error 596
Failure code [CA442] Battery Voltage High Error 598
Failure code [CA449] Rail Press Very High Error 600
Failure code [CA451] Rail Press Sensor High Error 604
Failure code [CA452] Rail Press Sensor Low Error 606
Failure code [CA553] Rail Press High Error 608
Failure code [CA559] Rail Press Low Error 609
Failure code [CA689] Eng Ne Speed Sensor Error 611
Failure code [CA731] Eng Bkup Speed Sens Phase Error 613
Failure code [CA757] All Persistent Data Lost Error 614
Failure code [CA778] Eng Bkup Speed Sensor Error 616
Failure code [CA1633] KOMNET Datalink Timeout Error 618
Failure code [CA2185] Throt Sens Sup Volt High Error 620
Failure code [CA2186] Throt Sens Sup Volt Low Error 621
Failure code [CA2249] Rail Press Very Low Error 622
Failure code [CA2265] Electric Lift Pump High Error 624
Failure code [CA2266] Electric Lift Pump Low Error 626
Failure code [CA2555] Grid Htr Relay Volt High Error 628
Failure code [CA2556] Grid Htr Relay Volt Low Error 630
Failure code [D110KB] Battery Relay Drive S/C 632
Failure code [DA25KP] 5V sensor 1 power abnormality 634
Failure code [DA2RMC] Pump Comm Abnormality 638
Failure code [DA2SKQ] Model Selection Abnormality 640
40 Troubleshooting 643
Troubleshooting by failure code (Display of code), Part 3 643
Failure code [DAFRMC] CAN discon (Monitor detected) 646
Failure code [DHPAMA] F Pump Press Sensor Abnormality 648
Failure code [DHPBMA] R Pump Press Sensor Abnormality 650
Failure code [DHS3MA] Arm Curl PPC Sen Abnormality 652
Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality 654
Failure code [DW43KA] Travel Speed Sol Disc 656
Failure code [DW43KB] Travel Speed Sol S/C 658
Failure code [DW45KA] Swing Brake Sol Disc 660
Failure code [DW45KB] Swing Brake Sol S/C 664
Failure code [DW91KA] Travel Junction Sol Disc 666
Failure code [DW91KB] Travel Junction Sol S/C 668
Failure code [DWJ0KA] Merge-divider Sol Disc 670
Failure code [DWJ0KB] Merge-divider Sol S/C 672
Failure code [DWK0KA] 2-stage Relief Sol Disc 674
Failure code [DWK0KB] 2-stage Relief Sol S/C 676
Failure code [DXA0KA] PC-EPC Sol Disc 678
Failure code [DXA0KB] PC-EPC Sol S/C 680
Failure code [DXE0KA] LS-EPC Sol Disc 682
Failure code [DXE0KB] LS-EPC Sol S/C 684
Failure code [DXE4KA] Service Current EPC Disc 686
Failure code [DXE4KB] Service Current EPC S/C 687
Failure code [DY20KA] Wiper Working Abnormality 688
Failure code [DY20MA] Wiper Parking Abnormality 690
Failure code [DY2CKB] Washer Drive Short 692
Failure code [DY2DKB] Wiper Drive (For) Short 694
Failure code [DY2EKB] Wiper Drive (Rev) Short 696
40 Troubleshooting 699
Troubleshooting of electrical system (E-mode) 699
Before carrying out troubleshooting of electrical system 702
Information contained in troubleshooting table 704
E-1 Engine does not start 705
E-2 Auto-decelerator does not operate 708
E-3 Automatic warming-up system does not operate 710
E-4 Preheater does not operate 712
E-5 All work equipment, swing, and travel mechanism do not move 714
E-6 Power maximizing function does not operate 716
E-7 Machine monitor does not display at all 718
E-8 Machine monitor does not display some items 720
E-9 Contents of display by machine monitor are different from applicable machine 720
E-10 Fuel level monitor was lighted in red while engine running 721
E-11 Engine coolant temperature gauge does not indicate normally 722
E-12 Hydraulic oil temperature gauge does not indicate normally 724
E-13 Fuel level gauge does not indicate normally 725
E-14 Swing lock monitor does not indicate normally 726
E-15 When monitor switch is operated, monitor displays nothing 728
E-16 Windshield wiper and window washer do not operate 730
E-17 Machine push-up function does not operate normally 734
E-18 Monitoring function fails to display “boom raise” normally 736
E-19 Monitoring function fails to display “boom lower” normally 738
E-20 Monitoring function fails to display “arm IN” normally 740
E-21 Monitoring function fails to display “arm OUT” normally 742
E-22 Monitoring function fails to display “bucket CURL” normally 744
E-23 Monitoring function fails to display “bucket DUMP” normally 746
E-24 Monitoring function fails to display “swing” normally 748
E-25 Monitoring function fails to display “travel” normally 750
E-26 Monitoring function fails to display “travel differential pressure” normally 752
E-27 Monitoring function fails to display “service” normally 754
E-28 KOMTRAX system does not operate normally 756
E-29 Air conditioner does not operate 758
E-30 Travel alarm does not sound or does not stop sounding 760
E-31 Horn does not sound 762
40 Troubleshooting 765
Troubleshooting of hydraulic and mechanical system (H-mode) 765
System chart for hydraulic and mechanical system 768
Information contained in troubleshooting table 770
H-1 All work equipment lack power, or travel and swing speeds are slow 772
H-2 Engine speed sharply drops or engine stalls 774
H-3 No work equipment, swing or travel move 775
H-4 Abnormal noise is heard from around hydraulic pump 775
H-5 Auto-decelerator does not work 776
H-6 Fine control mode does not function or responds slow 776
H-7 Boom moves slowly or lacks power 777
H-8 Arm moves slowly or lacks power 778
H-9 Bucket moves slowly or lacks power 779
H-10 Work equipment does not move in its single operation 779
H-11 Work equipment has a bit too fast hydraulic drift 780
H-12 Work equipment has big time lag 782
H-13 Other work equipment moves when relieving single circuit 782
H-14 Power max switch does not operate 783
H-15 In compound operation, work equipment with larger load moves slowly 783
H-16 In swing + boom RAISE operation, boom moves slowly 784
H-17 In swing + travel operation, travel speed drops sharply 784
H-18 Machine swerves in travel 785
H-19 Machine travels slowly 786
H-20 Machine cannot be easily steered or lacks power 787
H-21 Travel speed does not shift, or it is too slow or fast 788
H-22 Track shoe does not turn (on one side only) 789
H-23 Machine does not swing 790
H-24 Swing acceleration is poor, or swing speed is slow 792
H-25 Excessive overrun when stopping swing 794
H-26 There is big shock when stopping swing 795
H-27 Large sound is made when upper structure stops swinging 795
H-28 Swing hydraulic drift is too big 796
40 Troubleshooting 799
Troubleshooting of engine (S-mode) 799
Method of using troubleshooting chart 801
S-1 Starting performance is poor 804
S-2 Engine does not start 805
S-3 Engine does not pick up smoothly 808
S-4 Engine stops during operations 809
S-5 Engine does not rotate smoothly 810
S-6 Engine lacks output (or lacks power) 811
S-7 Exhaust smoke is black (incomplete combustion) 812
S-8 Oil consumption is excessive (or exhaust smoke is blue) 813
S-9 Oil becomes contaminated quickly 814
S-10 Fuel consumption is excessive 815
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down) 816
S-12 Oil pressure drops 817
S-13 Oil level rises (Entry of coolant or fuel) 818
S-14 Coolant temperature becomes too high (overheating) 819
S-15 Abnormal noise is made 820
S-16 Vibration is excessive 821
50 Disassembly and assembly 823
General information on disassembly and assembly 823
How to read this manual 824
Coating materials list 826
Special tools list 829
Sketches of special tools 833
50 Disassembly and assembly 837
Engine and cooling system 837
Removal and installation of fuel supply pump assembly 838
Removal and installation of engine front seal 841
Removal and installation of engine rear seal 843
Removal and installation of cylinder head assembly 848
Removal and installation of radiator assembly 860
Removal and installation of hydraulic oil cooler assembly 862
Removal and installation of aftercooler assembly 864
Removal and installation of engine and hydraulic pump assembly 865
50 Disassembly and assembly 871
Power train 871
Removal and installation of final drive assembly 872
Disassembly and assembly of final drive assembly 873
Removal and installation of swing motor and swing machinery assembly 881
Disassembly and assembly of swing motor and swing machinery assembly 882
Removal and installation of swing circle assembly 889
50 Disassembly and assembly 891
Undercarriage and frame 891
Disassembly and assembly of carrier roller 892
Disassembly and assembly of track roller assembly 893
Disassembly and assembly of idler assembly 894
Disassembly and assembly of recoil spring 897
Removal and installation of sprocket 899
Expansion and installation of track shoe assembly 900
Removal and installation of revolving frame assembly 901
Removal and installation of counterweight assembly 903
50 Disassembly and assembly 905
Hydraulic system 905
Removal and installation of centre swivel joint assembly 906
Disassembly and assembly of centre swivel joint assembly 908
Removal and installation of hydraulic tank assembly 909
Removal and installation of control valve assembly 911
Disassembly and assembly of control valve assembly 914
Removal and installation of hydraulic pump assembly 916
Removal and installation of oil seal in hydraulic pump input shaft 918
Disassembly and assembly of work equipment PPC valve assembly 919
Disassembly and assembly of travel PPC valve assembly 920
Disassembly and assembly of hydraulic cylinder assembly 921
50 Disassembly and assembly 927
Work equipment 927
Removal and installation of work equipment assembly 928
50 Disassembly and assembly 933
Cab and its attachments 933
Removal and installation of operator’s cab assembly 934
Removal and installation of operator cab glass (stuck glass) 937
Removal and installation of front window assembly 947
Removal and installation of floor frame assembly 954
50 Disassembly and assembly 959
Electrical system 959
Removal and installation of air conditioner unit assembly 960
Removal and installation of KOMTRAX communication modem assembly 963
Removal and installation of monitor assembly 964
Removal and installation of pump controller assembly 966
Removal and installation of engine controller 968
90 Diagrams and drawings 971
Hydraulic diagrams and drawings 971
Hydraulic circuit diagram 1/2 973
Hydraulic circuit diagram 2/2 975
90 Diagrams and drawings 979
Electrical diagrams and drawings 979
Connector arrangement diagram 981
Electrical circuit diagrams 983
Electrical circuit diagrams 985
Electrical circuit diagrams 987
Electrical circuit diagrams 989
Electrical circuit diagrams 991

DESCRIPTION:

Komatsu PC350LC-8 PC350LCD-8 PC350NLC-8 PC350NLCD-8 Hydraulic Excavator Shop Manual UEN01983-00 – PDF DOWNLOAD 

SERIAL NUMBERS
PC350LC-8 K50001 and up
PC350LCD-8 K50001 and up
PC350NLC-8 K50001 and up
PC350NLCD-8 K50001 and up

How to read the shop manual 
1. Composition of shop manual
This shop manual contains the necessary technical information for services performed in a workshop.
For ease of understanding, the manual is divided into the following sections.
00. Index and foreword
This section explains the shop manuals list, table of contents, safety, and basic information.
01. Specification
This section explains the specifications of the machine.
10. Structure, function and maintenance standard
This section explains the structure, function, and maintenance standard values of each component.
The structure and function sub-section explains the structure and function of each component. It
serves not only to give an understanding of the structure, but also serves as reference material for
troubleshooting. The maintenance standard sub-section explains the criteria and remedies for disassembly
and service.
20. Standard value table
This section explains the standard values for new machine and judgement criteria for testing,
adjusting, and troubleshooting. This standard value table is used to check the standard values in
testing and adjusting and to judge parts in troubleshooting.
30. Testing and adjusting
This section explains measuring instruments and measuring methods for testing and adjusting, and
method of adjusting each part. The standard values and judgement criteria for testing and adjusting
are explained in Testing and adjusting.
40. Troubleshooting
This section explains how to find out failed parts and how to repair them. The troubleshooting is
divided by failure modes. The “S mode” of the troubleshooting related to the engine may be also
explained in the Chassis volume and Engine volume. In this case, see the Chassis volume.
50. Disassembly and assembly
This section explains the special tools and procedures for removing, installing, disassembling, and
assembling each component, as well as precautions for them. In addition, tightening torque and
quantity and weight of coating material, oil, grease, and coolant necessary for the work are also
explained.
90. Diagrams and drawings (chassis volume)/Repair and replacement of parts (engine volume)
q Chassis volume
This section gives hydraulic circuit diagrams and electrical circuit diagrams.
q Engine volume
This section explains the method of reproducing, repairing, and replacing parts.

IMAGES PREVIEW OF THE MANUAL:

S.V 28/12/24