Komatsu HYDRAULIC EXCAVATOR PC290LC-8 PC290NLC-8 Shop Manual PDF

Description

Komatsu HYDRAULIC EXCAVATOR PC290LC-8 PC290NLC-8 Shop Manual – PDF DOWNLOAD

FILE DETAILS:

Komatsu HYDRAULIC EXCAVATOR PC290LC-8 PC290NLC-8 Shop Manual – PDF DOWNLOAD

Language : English
Pages :454
Downloadable : Yes
File Type : PDF]

TABLE OF CONTENTS:

Komatsu HYDRAULIC EXCAVATOR PC290LC-8 PC290NLC-8 Shop Manual – PDF DOWNLOAD

SERIAL NUMBERS PC290LC- K50001and up PC290NLC- K50001

00 Index and foreword 3
Index 3
Organization list of the shop manual 4
Table of contents 6
01 Specification 17
Specification and technical data 17
Specification and technical data 18
Specification dimension drawings 18
Working range diagram 19
Specifications 20
Weight table 22
Table of fuel, coolant and lubricants 24
10 Structure, function and maintenance standard 27
Engine and cooling system 27
Engine and cooling system 28
Engine related parts 28
Radiator, oil cooler, aftercooler and fuel cooler 29
Diesel Particulate Filter 30
Diesel Particulate Filter – Component Parts 31
System Description 32
Regeneration 32
10 Structure, function and maintenance standard 35
Hydraulic system, Part 3 35
Hydraulic system, Part 3 36
Swing motor 36
Centre swivel joint 46
Travel motor 49
PPC valve 62
Valve control 84
ATT EPC Valve Assembly 86
Solenoid valve 88
PPC Accumulator 90
Return oil filter 91
Attachment circuit selector valve 92
Quick coupler control valve 94
Quick coupler control valve 96
Hydraulic cylinder 98
10 Structure, function and maintenance standard101
Work equipment101
Work equipment102
Dimensions of components102
10 Structure, function and maintenance standard109
Electrical system109
Electrical system111
Engine control111
Electrical control system120
Monitor system146
Sensor176
PPC Levers179
KOMTRAX terminal system181
10 Structure, function and maintenance standard185
Auto Grease system185
Outline of Auto Grease System186
20 Standard value table201
Standard service value table201
Standard service value table202
Standard value table for engine related parts202
Standard value table for chassis related parts203
30 Testing and adjusting215
Testing and adjusting, Part 1215
Testing and adjusting, Part 1217
Tools for testing, adjusting, and troubleshooting217
Measuring engine speed220
Measuring intake air pressure (boost pressure)221
Checking exhaust gas colour222
Adjusting valve clearance223
Measuring compression pressure225
Measuring blow-by pressure227
Measuring engine oil pressure228
Handling fuel system parts229
Releasing residual pressure from fuel system229
Measuring fuel pressure230
Measuring fuel return rate and leakage232
Bleeding air from fuel circuit234
Checking fuel circuit for leakage236
Checking and adjusting air conditioner compressor belt tension237
Measuring swing circle bearing clearance238
Checking and adjusting track shoe tension239
Measuring and adjusting oil pressure in work equipment, swing, and travel circuits241
Measuring control circuit basic pressure244
Measuring and adjusting oil pressure in pump PC control circuit245
Measuring and adjusting oil pressure in pump LS control circuit248
Measuring solenoid valve output pressure252
Measuring PPC valve output pressure255
Adjusting play of work equipment and swing PPC valves257
Measuring and adjusting quick coupler control valve output pressure258
Checking parts which cause hydraulic drift of work equipment259
Releasing residual pressure from hydraulic circuit260
Measuring oil leakage261
Bleeding air from each part264
Checking cab tipping stopper266
Adjusting mirrors268
40 Troubleshooting271
General information on troubleshooting271
General information on troubleshooting272
Points to remember when troubleshooting272
Sequence of events in troubleshooting273
Check before troubleshooting274
Classification and procedures for troubleshooting275
How to read electric wire code279
Connection table for connector pin numbers282
T-boxes and T-adapters table305
40 Troubleshooting309
Troubleshooting of electrical system (E-mode)309
Troubleshooting of electrical system (E-mode)311
Before carrying out troubleshooting of electrical system311
Information in troubleshooting table314
E-1 When starting switch turned ON, machine monitor displays nothing316
E-2 When starting switch turned ON (before starting engine), basic check item lights up318
E-3 Engine does not start (Engine does not turn)321
E-4 Preheater does not operate324
E-5 Automatic warm-up system does not operate (in cold season)326
E-6 All work equipment, swing, and travel mechanism do not move or cannot be locked328
E-7 Precaution lights up while engine is running330
E-8 Emergency stop item lights up while engine is running335
E-9 Engine coolant temperature gauge does not indicate normally336
E-10 Hydraulic oil temperature gauge does not indicate normally337
E-11 Fuel level gauge does not indicate normally339
E-12 Contents of display by machine monitor are different from applicable machine341
E-13 Machine monitor does not display some items341
E-14 Function switch does not work341
E-15 Auto-decelerator does not operate normally342
E-16 Working mode does not change343
E-17 Travel speed does not change344
E-18 Alarm buzzer cannot be stopped345
E-19 Windshield wiper and window washer do not operate348
E-20 Power maximizing function does not operate normally350
E-21 Swing holding brake does not operate normally356
E-22 Travel alarm does not sound or does not stop sounding358
E-23 Air conditioner does not operate normally (including air conditioner abnormality record)360
E-24 When starting switch is turned OFF, service meter is not displayed372
E-25 Machine monitor cannot be set in service mode372
E-26 Monitoring function does not display lever control signal normally373
E-27 KOMTRAX system does not operate normally382
40 Troubleshooting385
Troubleshooting of engine (S-mode)385
Troubleshooting of engine (S-mode)387
Method of using troubleshooting chart387
S-1 Starting performance is poor390
S-2 Engine does not start391
S-3 Engine does not pick up smoothly394
S-4 Engine stops during operations395
S-5 Engine does not rotate smoothly396
S-6 Engine lack output (or lacks power)397
S-7 Exhaust smoke is black (incomplete combustion)399
S-8 Oil consumption is excessive (or exhaust smoke is blue)400
S-9 Oil becomes contaminated quickly401
S-10 Fuel consumption is excessive402
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)403
S-12 Oil pressure drops404
S-13 Oil level rises (Entry of coolant/fuel)405
S-14 Coolant temperature becomes too high (overheating)406
S-15 Abnormal noise is made407
S-16 Vibration is excessive408
S-17 Diesel Particulate Filter System409
40 Troubleshooting411
Troubleshooting of Auto Grease system411
90 Diagrams and drawings419
Electrical diagrams and drawings419
Electrical circuit diagram (For PC290-8 K50001 ~ K50104) 0
Electrical circuit diagram (1/5)421
Electrical circuit diagram (2/5)423
Electrical circuit diagram (3/5)425
Electrical circuit diagram (4/5)427
Electrical circuit diagram (5/5)429
Electrical diagrams and drawings (For PC290 K50105 – K50370) 0
Electrical circuit diagram (1/5)431
Electrical circuit diagram (2/5)433
Electrical circuit diagram (3/5)435
Electrical circuit diagram (4/5)437
Electrical circuit diagram (5/5)439
Electrical diagrams and drawings (For PC290 K50371 – Up) 0
Electrical circuit diagram (1/5)441
Electrical circuit diagram (2/5)443
Electrical circuit diagram (3/5)445
Electrical circuit diagram (4/5)447
Electrical circuit diagram (5/5)449
Connector arrangement diagram451

IMAGES PREVIEW OF THE MANUAL:

S.M 25/12/24