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Komatsu PC800-8, PC800LC-8 Galeo Hydraulic Excavator Service Repair Manual – PDF Download

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  • Komatsu PC800-8, PC800LC-8 Galeo Hydraulic Excavator Service Repair Manual 
  • SERIAL NUMBERS PC800- 50001 and up PC800LC- 50001
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Description

Komatsu PC800-8, PC800LC-8 Galeo Hydraulic Excavator Service Repair Manual 

Description:

  • Komatsu PC800-8, PC800LC-8 Galeo Hydraulic Excavator Service Repair Manual 
  • SERIAL NUMBERS PC800- 50001 and up PC800LC- 50001
  • 1) Before carrying out any greasing or repairs, read all the safety plates stuck to the machine. For the locations of the safety plates and detailed explanation of precautions, see the Operation and Maintenance Manual.
  • 2) Decide a place in the repair workshop to keep tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt, water, or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.
  • 3) When carrying out any operation, always wear safety shoes and helmet. Do not wear loose work clothes, or clothes with buttons missing. q Always wear safety glasses when hitting parts with a hammer. q Always wear safety glasses when grinding parts with a grinder, etc.
  • 4) When carrying out any operation with 2 or more workers, always agree on the operating procedure before starting. Always inform your fellow workers before starting any step of the operation. Before starting work, hang UNDER REPAIR signs in the operator’s compartment.
  • 5) Only qualified workers must carry out work and operation which require license or qualification.
  • 6) Keep all tools in good condition, learn the correct way to use them, and use the proper ones of them. Before starting work, thoroughly check the tools, machine, forklift, service car, etc.
  • 7) If welding repairs are needed, always have a trained and experienced welder carry out the work. When carrying out welding work, always wear welding gloves, apron, shielding goggles, cap and other clothes suited for welding work.
  • 8) Before starting work, warm up your body thoroughly to start work under good condition.

Table of Contents:

  • Komatsu PC800-8, PC800LC-8 Galeo Hydraulic Excavator Service Repair Manual 
  • SERIAL NUMBERS PC800- 50001 and up PC800LC- 50001
  • PC800-8_PC800LC-8.......................................................................................................  1
    00 Index and foreword...................................................................................................  3
    	Index...............................................................................................................  3
    		Organization list of the shop manual............................................................................  4
    		Table of contents...............................................................................................  6
    00 Index and foreword................................................................................................... 15
    	Foreword and general information.................................................................................... 15
    		Foreword and general information................................................................................ 16
    			Safety notice............................................................................................... 16
    			How to read the shop manual................................................................................. 20
    			Explanation of terms for maintenance standard............................................................... 22
    			Handling electric equipment and hydraulic component......................................................... 24
    			How to read electric wire code.............................................................................. 32
    			Method of disassembling and connecting push-pull type coupler............................................... 35
    			Standard tightening torque table............................................................................ 38
    			Conversion table............................................................................................ 42
    01 Specification........................................................................................................ 49
    	Specification and technical data.................................................................................... 49
    		Specification and technical data................................................................................ 50
    			Specification drawings...................................................................................... 50
    			Working range drawing....................................................................................... 51
    			Specifications.............................................................................................. 52
    			Weight table................................................................................................ 58
    			Table of fuel, coolant and lubricants....................................................................... 61
    10 Structure, function and maintenance standard......................................................................... 65
    	Engine and cooling system........................................................................................... 65
    		Engine and cooling system....................................................................................... 66
    			Coupling.................................................................................................... 66
    			Coupling lubrication system................................................................................. 67
    			Radiator, oil cooler........................................................................................ 68
    10 Structure, function and maintenance standard......................................................................... 71
    	Power train......................................................................................................... 71
    		Power train..................................................................................................... 72
    			Power train................................................................................................. 72
    			Swing machinery............................................................................................. 74
    			Swing circle................................................................................................ 76
    			Final drive................................................................................................. 78
    			Sprocket.................................................................................................... 80
    10 Structure, function and maintenance standard......................................................................... 83
    	Undercarriage and frame............................................................................................. 83
    		Undercarriage and frame......................................................................................... 84
    			Track frame and recoil spring............................................................................... 84
    			Idler....................................................................................................... 86
    			Carrier roller.............................................................................................. 88
    			Track roller................................................................................................ 90
    			Track shoe.................................................................................................. 92
    10 Structure, function and maintenance standard......................................................................... 97
    	Hydraulic system, Part 1............................................................................................ 97
    		Hydraulic system, Part 1........................................................................................ 98
    			Hydraulic piping drawing.................................................................................... 98
    			Hydraulic tank, hydraulic filter............................................................................100
    			Hydraulic pump..............................................................................................102
    			Operation of pump control mechanism.........................................................................108
    			EPC valve...................................................................................................110
    			Self pressure reducing valve................................................................................113
    			Cooling fan pump............................................................................................117
    			Cooling fan motor...........................................................................................126
    10 Structure, function and maintenance standard.........................................................................133
    	Hydraulic system, Part 2............................................................................................133
    		Hydraulic system, Part 2........................................................................................135
    			Motor grease pump...........................................................................................135
    			Return oil filter...........................................................................................136
    			Line oil filter.............................................................................................137
    			Drain oil filter............................................................................................138
    			L.H. 5-Spool control valve..................................................................................140
    			R.H. 4-Spool control valve..................................................................................146
    			Straight-travel valve.......................................................................................153
    			Swing motor.................................................................................................156
    			Center swivel joint.........................................................................................161
    			Travel motor................................................................................................162
    			PPC accumulator.............................................................................................172
    			Work equipment, swing PPC valve.............................................................................173
    			Travel PPC valve............................................................................................178
    			Solenoid valve..............................................................................................182
    			Hydraulic cylinder..........................................................................................188
    10 Structure, function and maintenance standard.........................................................................191
    	Work equipment......................................................................................................191
    		Work equipment..................................................................................................192
    			Work equipment..............................................................................................192
    			Dimensions of work equipment................................................................................194
    10 Structure, function and maintenance standard.........................................................................199
    	Cab and its attachments.............................................................................................199
    		Cab and its attachments.........................................................................................200
    			Air conditioner piping......................................................................................200
    10 Structure, function and maintenance standard.........................................................................203
    	Electrical system...................................................................................................203
    		Electrical system...............................................................................................204
    			Engine control..............................................................................................204
    			Electric control system.....................................................................................213
    			Monitor system..............................................................................................247
    			Sensors.....................................................................................................265
    20 Standard value table.................................................................................................271
    	Standard service value table........................................................................................271
    		Standard service value table....................................................................................272
    			Standard service value table for engine.....................................................................272
    			Standard service value table for chassis....................................................................273
    30 Testing and adjusting................................................................................................283
    	Testing and adjusting, Part 1.......................................................................................283
    		Testing and adjusting, Part 1...................................................................................284
    			Tools for testing, adjusting and troubleshooting............................................................284
    			Measuring engine speed......................................................................................286
    			Measuring intake air pressure (Boost pressure)..............................................................287
    			Measuring exhaust gas temperature...........................................................................288
    			Measuring exhaust gas color.................................................................................289
    			Adjusting valve clearance...................................................................................290
    			Measuring compression pressure..............................................................................291
    			Measuring blow-by pressure..................................................................................292
    			Measuring engine oil pressure...............................................................................293
    			Handling of fuel system equipment...........................................................................294
    			Remaining pressure relief from fuel system equipment........................................................294
    			Measuring fuel pressure.....................................................................................295
    			Testing fuel return rate and leakage........................................................................296
    			Bleeding air from fuel circuit..............................................................................298
    			Testing and adjusting alternator belt tension...............................................................299
    			Testing and adjusting air conditioner compressor belt.......................................................300
    30 Testing and adjusting................................................................................................303
    	Testing and adjusting, Part 2.......................................................................................303
    		Testing and adjusting, Part 2...................................................................................304
    			Inspection of swing circle bearing clearance................................................................304
    			Testing and adjusting track shoe tension....................................................................305
    			Testing and adjusting work equipment, swing, and travel circuit oil pressures...............................306
    			Testing and adjusting control circuit oil pressure (self pressure reducing valve)...........................311
    			Testing and adjusting main pump control pressure............................................................312
    30 Testing and adjusting................................................................................................319
    	Testing and adjusting, Part 3.......................................................................................319
    		Testing and adjusting, Part 3...................................................................................320
    			Measuring PPC valve output pressure.........................................................................320
    			Measuring outlet pressures of solenoid valve, swing PPC shuttle valve, and swing priority selector valve....324
    			Adjusting work equipment, swing PPC valve...................................................................328
    			Testing and adjusting travel deviation......................................................................329
    			Inspection of locations of hydraulic drift of work equipment................................................331
    			Measuring fan speed.........................................................................................332
    			Measuring fan circuit oil pressure..........................................................................332
    			Measuring fan pump EPC current..............................................................................333
    			Measuring fan pump EPC solenoid valve output pressure.......................................................333
    			Measuring oil leakage.......................................................................................334
    			Release of residual pressure from hydraulic circuit.........................................................338
    			Bleeding air from each part.................................................................................339
    			Inspection procedures for diode.............................................................................342
    30 Testing and adjusting................................................................................................345
    	Testing and adjusting, Part 4.......................................................................................345
    		Testing and adjusting, Part 4...................................................................................346
    			Special function of machine monitor.........................................................................346
    			Handling engine controller high voltage circuit.............................................................377
    30 Testing and adjusting................................................................................................379
    	Testing and adjusting, Part 5.......................................................................................379
    		Testing and adjusting, Part 5...................................................................................380
    			Procedure for turning on KOMTRAX terminal...................................................................380
    			KOMTRAX terminal lamp indications...........................................................................383
    			Preparation work for troubleshooting electrical system......................................................386
    			Pm-clinic service...........................................................................................389
    			UNDERCARRIAGE INSPECTION....................................................................................395
    40 Troubleshooting......................................................................................................397
    	General information on troubleshooting..............................................................................397
    		General information on troubleshooting..........................................................................398
    			Points to remember when troubleshooting.....................................................................398
    			Sequence of events in troubleshooting.......................................................................399
    			Checks before troubleshooting...............................................................................400
    			Classification and troubleshooting steps....................................................................401
    			Connection table for connector pin numbers..................................................................405
    			T-boxes and T-adapters table................................................................................428
    40 Troubleshooting......................................................................................................433
    	Troubleshooting by failure code (Display of code), Part 1...........................................................433
    		Troubleshooting by failure code (Display of code), Part 1.......................................................435
    			Failure codes table.........................................................................................435
    			Information in troubleshooting table........................................................................440
    			Failure code [A000N1] Eng. Hi Out of Std....................................................................442
    			Failure code [AA10NX] Aircleaner Clogging...................................................................444
    			Failure code [AB00KE] Charge Voltage Low....................................................................446
    			Failure code [B@BAZG] Eng. Oil Press. Low...................................................................448
    			Failure code [B@BAZK] Eng. Oil Level Low....................................................................450
    			Failure code [B@BCNS] Eng. Water Overheat...................................................................452
    			Failure code [B@BCZK] Eng. Water Lvl Low....................................................................454
    			Failure code [B@HANS] Hydr. Oil Overheat....................................................................456
    			Failure code [CA111] ECM Critical Internal Failure..........................................................458
    			Failure code [CA115] Eng Ne and Bkup Speed Sens Error.......................................................460
    			Failure code [CA122] Chg Air Press Sensor High Error........................................................462
    			Failure code [CA123] Chg Air Press Sensor Low Error.........................................................465
    			Failure code [CA131] Throttle Sensor High Error.............................................................466
    			Failure code [CA132] Throttle Sensor Low Error..............................................................468
    			Failure code [CA135] Eng Oil Press Sensor High Error........................................................470
    			Failure code [CA141] Eng Oil Press Sensor Low Error.........................................................472
    			Failure code [CA144] Coolant Temp Sens High Error...........................................................474
    			Failure code [CA145] Coolant Temp Sens Low Error............................................................476
    			Failure code [CA153] Chg Air Temp Sensor High Error.........................................................478
    			Failure code [CA154] Chg Air Temp Sensor Low Error..........................................................480
    			Failure code [CA187] Sens Supply 2 Volt Low Error...........................................................481
    			Failure code [CA221] Ambient Press Sens High Error..........................................................482
    			Failure code [CA222] Ambient Press Sens Low Error...........................................................484
    			Failure code [CA227] Sens Supply 2 Volt High Error..........................................................486
    			Failure code [CA234] Eng Overspeed..........................................................................488
    			Failure code [CA238] Ne Speed Sens Supply Volt Error........................................................490
    			Failure code [CA263] Fuel Temp Sensor High Error............................................................492
    			Failure code [CA265] Fuel Temp Sensor Low Error.............................................................494
    			Failure code [CA271] IMV/PCV1 Short Error...................................................................495
    			Failure code [CA272] IMV/PCV1 Open Error....................................................................496
    			Failure code [CA273] PCV2 Short Error.......................................................................497
    			Failure code [CA274] PCV2 Open Error........................................................................498
    			Failure code [CA322] Inj #1 (L#1) Open/Short Error..........................................................499
    			Failure code [CA323] Inj #5 (L#5) Open/Short Error..........................................................500
    			Failure code [CA324] Inj #3 (L#3) Open/Short Error..........................................................501
    			Failure code [CA325] Inj #6 (L#6) Open/Short Error..........................................................502
    			Failure code [CA331] Inj #2 (L#2) Open/Short Error..........................................................503
    			Failure code [CA332] Inj #4 (L#4) Open/Short Error..........................................................504
    			Failure code [CA342] Calibration Code Incompatibility.......................................................505
    			Failure code [CA351] Injectors Drive Circuit Error..........................................................506
    			Failure code [CA352] Sens Supply 1 Volt Low Error...........................................................508
    			Failure code [CA386] Sens Supply 1 Volt High Error..........................................................510
    40 Troubleshooting......................................................................................................513
    	Troubleshooting by failure code (Display of code), Part 2...........................................................513
    		Troubleshooting by failure code (Display of code), Part 2.......................................................515
    			Failure code [CA441] Battery Voltage Low Error..............................................................515
    			Failure code [CA442] Battery Voltage High Error.............................................................515
    			Failure code [CA449] Rail Press Very High Error.............................................................516
    			Failure code [CA451] Rail Press Sensor High Error...........................................................518
    			Failure code [CA452] Rail Press Sensor Low Error............................................................520
    			Failure code [CA553] Rail Press High Error..................................................................520
    			Failure code [CA554] Rail Press Sensor In Range Error.......................................................521
    			Failure code [CA559] Rail Press Low Error...................................................................522
    			Failure code [CA689] Eng Ne Speed Sensor Error..............................................................526
    			Failure code [CA731] Eng Bkup Speed Sens Phase Error........................................................528
    			Failure code [CA757] All Persistent Data Lost Error.........................................................529
    			Failure code [CA778] Eng Bkup Speed Sensor Error............................................................530
    			Failure code [CA1228] EGR Valve Servo Error 1...............................................................532
    			Failure code [CA1625] EGR Valve Servo Error 2...............................................................533
    			Failure code [CA1626] BP Valve Sol Current High Error.......................................................534
    			Failure code [CA1627] BP Valve Sol Current Low Error........................................................536
    			Failure code [CA1628] Bypass Valve Servo Error 1............................................................537
    			Failure code [CA1629] Bypass Valve Servo Error 2............................................................538
    			Failure code [CA1631] BP Valve Pos Sens High Error..........................................................540
    			Failure code [CA1632] BP Valve Pos Sens Low Error...........................................................542
    			Failure code [CA1633] KOMNET Datalink Timeout Error.........................................................543
    			Failure code [CA1642] EGR Inter Press Sens Low Error........................................................545
    			Failure code [CA1653] EGR Inter Press Sens High Error.......................................................546
    			Failure code [CA2185] Throt Sens Sup Volt High Error........................................................548
    			Failure code [CA2186] Throt Sens Sup Volt Low Error.........................................................550
    			Failure code [CA2249] Rail Press Very Low Error.............................................................551
    			Failure code [CA2271] EGR Valve Pos Sens High Error.........................................................552
    			Failure code [CA2272] EGR Valve Pos Sens Low Error..........................................................554
    			Failure code [CA2351] EGR Valve Sol Current High Error......................................................556
    			Failure code [CA2352] EGR Valve Sol Current Low Error.......................................................558
    			Failure code [CA2555] Grid Htr Relay Volt Low Error.........................................................559
    			Failure code [CA2556] Grid Htr Relay Volt High Error........................................................560
    			Failure code [D110KB] Battery Relay Drive S/C...............................................................562
    			Failure code [D163KB] Flash Light Relay S/C.................................................................564
    			Failure code [D195KB] Step Light Relay S/C..................................................................566
    			Failure code [DA25KP] Press. Sensor Power Abnormality.......................................................568
    			Failure code [DA2SKQ] Model Selection Abnormality...........................................................570
    			Failure code [DA80MA] Auto. Lub. Abnormal...................................................................572
    			Failure code [DA2RMC] Pump Comm. Abnormality................................................................574
    			Failure code [DAFRMC] Monitor Comm. Abnormality.............................................................576
    			Failure code [DGE5KY] Ambi. Temp. Sensor S/C................................................................578
    			Failure code [DGH2KB] Hydr. Oil Temp. Sensor S/C............................................................580
    40 Troubleshooting......................................................................................................583
    	Troubleshooting by failure code (Display of code), Part 3...........................................................583
    		Troubleshooting by failure code (Display of code), Part 3.......................................................586
    			Failure code [DH25KA] L Jet Sensor Disc.....................................................................586
    			Failure code [DH25KB] L Jet Sensor S/C......................................................................588
    			Failure code [DH26KA] R Jet Sensor Disc.....................................................................590
    			Failure code [DH26KB] R Jet Sensor S/C......................................................................592
    			Failure code [DHPEKA] F Pump P. Sensor Disc.................................................................594
    			Failure code [DHPEKB] F Pump P. Sensor S/C..................................................................596
    			Failure code [DHPFKA] R Pump P. Sensor Disc.................................................................598
    			Failure code [DHPFKB] R Pump P. Sensor S/C..................................................................600
    			Failure code [DV20KB] Travel Alarm S/C......................................................................602
    			Failure code [DW41KA] Swing Priority Sol. Disc..............................................................604
    			Failure code [DW41KB] Swing Priority Sol. S/C...............................................................606
    			Failure code [DW43KA] Travel Speed Sol. Disc................................................................608
    			Failure code [DW43KB] Travel Speed Sol. S/C.................................................................610
    			Failure code [DW45KA] Swing Brake Sol. Disc.................................................................612
    			Failure code [DW45KB] Swing Brake Sol. S/C..................................................................614
    			Failure code [DW7BKA] Fan Reverse Sol. Disc.................................................................616
    			Failure code [DW78KB] Fan Reverse Sol. S/C..................................................................618
    			Failure code [DWK0KA] 2-stage Relief Sol. Disc..............................................................620
    			Failure code [DWK0KB] 2-stage Relief Sol. S/C...............................................................622
    			Failure code [DX16KA] Fan Pump EPC Sol. Disc................................................................624
    			Failure code [DX16KB] Fan Pump EPC Sol. S/C.................................................................626
    			Failure code [DXAAKA] F Pump EPC Sol. Disc..................................................................628
    			Failure code [DXAAKB] F Pump EPC Sol. S/C...................................................................630
    			Failure code [DXABKA] R Pump EPC Sol. Disc..................................................................632
    			Failure code [DXABKB] R Pump EPC Sol. S/C...................................................................634
    			Failure code [DY20KA] Wiper Working Abnormality.............................................................636
    			Failure code [DY20MA] Wiper Parking Abnormality.............................................................638
    			Failure code [DY2CKB] Washer Drive S/C......................................................................642
    			Failure code [DY2DKB] Wiper Drive (For) S/C.................................................................644
    			Failure code [DY2EKB] Wiper Drive (Rev) S/C.................................................................648
    40 Troubleshooting......................................................................................................651
    	Troubleshooting of electrical system (E-mode).......................................................................651
    		Troubleshooting of electrical system (E-mode)...................................................................653
    			Before carrying out troubleshooting of electrical system....................................................653
    			Information contained in troubleshooting table..............................................................655
    			E-1 Engine does not start (Engine does not rotate)..........................................................656
    			E-2 Preheater does not operate..............................................................................659
    			E-3 Auto engine warm-up device does not work................................................................664
    			E-4 Auto-decelerator does not operate.......................................................................665
    			E-5 All work equipment, swing and travel do not move........................................................666
    			E-6 Machine push-up function does not operate normally......................................................668
    			E-7 Boom shockless function does not operate normally.......................................................670
    			E-8 Any item is not displayed on machine monitor............................................................672
    			E-9 Part of display on machine monitor is missing...........................................................673
    			E-10 Machine monitor displays contents irrelevant to the model..............................................673
    			E-11 Fuel level monitor red lamp lights up while engine is running..........................................674
    			E-12 Engine coolant thermometer does not display normally...................................................676
    			E-13 Hydraulic oil temperature gauge does not display correctly.............................................678
    			E-14 Fuel gauge does not display correctly..................................................................679
    			E-15 Swing lock monitor does not display correctly..........................................................680
    			E-16 When monitor switch is operated, nothing is displayed..................................................682
    			E-17 Windshield wiper and window washer do not work.........................................................684
    			E-18 "Boom RAISE" is not correctly displayed in monitor function............................................692
    			E-19 "Boom LOWER" is not correctly displayed in monitor function............................................693
    			E-20 "Arm IN" is not correctly displayed in monitor function................................................694
    			E-21 "Arm OUT" is not correctly displayed in monitor function...............................................695
    			E-22 "Bucket CURL" is not correctly displayed in monitor function...........................................696
    			E-23 "Bucket DUMP" is not correctly displayed in monitor function...........................................697
    			E-24 "SWING" is not correctly displayed in monitor function.................................................698
    			E-25 "Left travel" is not displayed normally in monitoring function.........................................700
    			E-26 "Right travel" is not displayed normally in monitoring function........................................702
    			E-27 "Service" is not correctly displayed in monitor function...............................................704
    			E-28 KOMTRAX system does not operate normally...............................................................706
    			E-29 Air conditioner does not work..........................................................................708
    			E-30 Step light does not light up or go off.................................................................709
    			E-31 Electric grease gun does not operate...................................................................712
    			E-32 Travel alarm does not sound or does not stop sounding..................................................714
    40 Troubleshooting......................................................................................................717
    	Troubleshooting of hydraulic and mechanical system (H-mode).........................................................717
    		Troubleshooting of hydraulic and mechanical system (H-mode).....................................................719
    			Information in troubleshooting table........................................................................719
    			H-1 Speed or power of all work equipment, travel, and swing is low..........................................720
    			H-2 Engine speed lowers remarkably or engine stalls.........................................................722
    			H-3 All work equipment, travel, and swing systems do not work...............................................723
    			H-4 Abnormal sound is heard from around pump................................................................724
    			H-5 Boom speed or power is low..............................................................................725
    			H-6 Speed or power of arm is low............................................................................727
    			H-7 Speed or power of bucket is low.........................................................................728
    			H-8 Boom does not move......................................................................................729
    			H-9 Arm does not move.......................................................................................729
    			H-10 Bucket does not move...................................................................................729
    			H-11 Hydraulic drift of work equipment is large.............................................................730
    			H-12 Time lag of work equipment is large....................................................................732
    			H-13 Heavy lift function does not operate or stop...........................................................733
    			H-14 Machine push-up function does not operate or stop......................................................733
    			H-15 Boom shockless function cannot be turned ON or OFF.....................................................733
    			H-16 Machine deviates in one direction......................................................................734
    			H-17 Machine deviates largely at start......................................................................736
    			H-18 Machine deviates largely during compound operation.....................................................737
    			H-19 Travel speed or power is low...........................................................................737
    			H-20 Machine does not travel (only one track)...............................................................738
    			H-21 Travel speed does not change...........................................................................739
    			H-22 Upper structure does not swing.........................................................................740
    			H-23 Swing speed or acceleration is low.....................................................................742
    			H-24 Swing speed or acceleration is low during compound operation of swing andwork equipment................743
    			H-25 Upper structure overruns excessively when it stops swinging............................................745
    			H-26 Large shock is made when upper structure stops swinging................................................746
    			H-27 Large abnormal sound is made when upper structure stops swinging.......................................747
    			H-28 Hydraulic drift of swing is large......................................................................748
    40 Troubleshooting......................................................................................................751
    	Troubleshooting of engine (S-mode)..................................................................................751
    		Troubleshooting of engine (S-mode)..............................................................................753
    			Method of using troubleshooting chart.......................................................................753
    			S-1 Starting performance is poor............................................................................756
    			S-2 Engine does not start...................................................................................758
    			S-3 Engine does not pick up smoothly........................................................................762
    			S-4 Engine stops during operations..........................................................................763
    			S-6 Engine lacks output (or lacks power)....................................................................765
    			S-7 Exhaust gas color is black (incomplete combustion)......................................................766
    			S-8 Oil consumption is excessive (or exhaust smoke is blue).................................................768
    			S-9 Oil becomes contaminated quickly........................................................................769
    			S-10 Fuel consumption is excessive..........................................................................770
    			S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)..................................771
    			S-12 Oil pressure drops.....................................................................................772
    			S-13 Oil level rises (Entry of coolant/fuel)................................................................773
    			S-14 Coolant temperature becomes too high (overheating).....................................................775
    			S-15 Abnormal noise is made.................................................................................776
    			S-16 Vibration is excessive.................................................................................777
    90 Diagrams and drawings................................................................................................779
    	Hydraulic diagrams and drawings.....................................................................................779
    		Hydraulic diagrams and drawings.................................................................................781
    90 Diagrams and drawings................................................................................................785
    	Electrical diagrams and drawings....................................................................................785
    		Electrical circuit diagram (1/5)................................................................................787
    		Electrical circuit diagram (2/5)................................................................................789
    		Electrical circuit diagram (3/5)................................................................................791
    		Electrical circuit diagram (4/5)................................................................................793
    		Electrical circuit diagram (5/5)................................................................................795
    

Screenshot Of The Manual:

KOMATSU PC800-8, PC800LC-8 GALEO HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL – PDF DOWNLOAD:

Please Note:

⦁ This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
⦁ You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
⦁ Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted

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