TÀI LIỆU - SHOP MANUAL KOMATSU PC300-8 & PC350-8


Shop Manual, contents binder, binder label and tabs SEN01983-03
00 Index and foreword SEN01984-03
Index SEN01985-03q
Foreword and general information SEN01986-00
01 Specification SEN01987-01
Specification and technical data SEN01988-01
10 Structure, function and maintenance standard SEN01989-01
Engine and cooling system SEN01990-00
Power train SEN01991-00
Undercarriage and frame SEN01992-00
Hydraulic system, Part 1 SEN01993-00
Hydraulic system, Part 2 SEN01994-00
Hydraulic system, Part 3 SEN01995-00
Work equipment SEN01996-01
Cab and its attachments SEN01997-00
Electrical system SEN01998-00
20 Standard value table SEN01999-00
Standard service value table SEN02624-00
30 Testing and adjusting SEN02000-00
Testing and adjusting, Part 1 SEN02625-00
Testing and adjusting, Part 2 SEN02626-00
Testing and adjusting, Part 3 SEN02663-00
40 Troubleshooting SEN02001-00
Failure code table and fuse locations SEN02627-00
General information on troubleshooting SEN02628-00
Troubleshooting by failure code (Display of code), Part 1 SEN02629-00
Troubleshooting by failure code (Display of code), Part 2 SEN02630-00
Troubleshooting by failure code (Display of code), Part 3 SEN02631-00
Troubleshooting of electrical system (E-mode) SEN02632-00
Troubleshooting of hydraulic and mechanical system (H-mode) SEN02633-00


CONTENTS:

00 Index and foreword
Index SEN01985-03
Composition of shop manual ................................................................................................... 2
Table of contents...................................................................................................................... 4
Foreword and general information SEN01986-00
Safety notice................................................................................................................................ 2
How to read the shop manual .....................................................................................................7
Explanation of terms for maintenance standard.......................................................................... 9
Handling of electric equipment and hydraulic component........................................................... 11
Handling of connectors newly used for engines.......................................................................... 20
How to read electric wire code.................................................................................................... 23
Precautions when carrying out operation .................................................................................... 26
Method of disassembling and connecting push-pull type coupler ............................................... 29
Standard tightening torque table ................................................................................................. 32
Conversion table ......................................................................................................................... 36
01 Specification
Specification and technical data SEN01988-01
Specification dimension drawings ............................................................................................... 2
Dimensions.................................................................................................................................. 2
Working ranges ........................................................................................................................... 3
Specifications .............................................................................................................................. 4
Weight table ................................................................................................................................ 10
Table of fuel, coolant and lubricants ............................................................................................ 12
10 Structure, function and maintenance standard
Engine and cooling system SEN01990-00
Engine related parts .................................................................................................................... 2
Radiator, oil cooler and aftercooler.............................................................................................. 3
Power train SEN01991-00
Power train .................................................................................................................................. 2
Swing circle ................................................................................................................................. 3
Swing machinery ......................................................................................................................... 4
Final drive.................................................................................................................................... 6
Sprocket ...................................................................................................................................... 8
Undercarriage and frame SEN01992-00
Track frame and recoil spring ...................................................................................................... 2
Idler ............................................................................................................................................. 4
Carrier roller ................................................................................................................................ 6
Track roller................................................................................................................................... 7
Track shoe................................................................................................................................... 8
Hydraulic system, Part 1 SEN01993-00
Hydraulic equipment layout drawing ........................................................................................... 2
Hydraulic tank and filter ............................................................................................................... 4
Hydraulic pump ........................................................................................................................... 6
Hydraulic system, Part 2 SEN01994-00
Control valve ............................................................................................................................... 2
CLSS ........................................................................................................................................... 14
Outline of CLSS........................................................................................................................... 14
Basic principle ............................................................................................................................. 15
Functions and operation by valve................................................................................................18
Hydraulic circuit diagram and the name of valves....................................................................... 18
Unload valve................................................................................................................................ 20
00 Index and foreword SEN01985-03
PC300, 350-8 5
Introduction of LS pressure ......................................................................................................... 22
LS bypass plug............................................................................................................................ 23
Pressure compensation valve .....................................................................................................24
Pressure compensation valve inner shuttle valve ....................................................................... 27
Boom regeneration circuit ........................................................................................................... 29
Arm regeneration circuit .............................................................................................................. 31
Merge-divider valve..................................................................................................................... 33
LS select valve ............................................................................................................................ 35
Self pressure reducing valve....................................................................................................... 36
Travel junction valve.................................................................................................................... 39
Travel PPC shuttle valve ............................................................................................................. 41
Boom drift prevention valve......................................................................................................... 43
Arm drift prevention valve ........................................................................................................... 46
Quick return valve ....................................................................................................................... 50
Lift check valve............................................................................................................................ 52
Main relief valve .......................................................................................................................... 53
2-stage safety-suction valve........................................................................................................ 54
Variable pressure compensation valve ....................................................................................... 56
Attachment circuit selector valve................................................................................................. 58
Hydraulic drift prevention valve ................................................................................................... 60
Hydraulic system, Part 3 SEN01995-00
Valve control................................................................................................................................ 2
PPC valve ................................................................................................................................... 4
Solenoid valve............................................................................................................................. 26
PPC accumulator ........................................................................................................................ 28
Return oil filter ............................................................................................................................. 29
Center swivel joint ....................................................................................................................... 30
Travel motor ................................................................................................................................ 31
Swing motor ................................................................................................................................ 43
Hydraulic cylinder ........................................................................................................................ 52
Work equipment SEN01996-01
Work equipment .......................................................................................................................... 2
Dimensions of components ......................................................................................................... 4
Cab and its attachments SEN01997-00
Air conditioner piping................................................................................................................... 2
Electrical system SEN01998-00
Engine control ............................................................................................................................. 2
Electronic control system ............................................................................................................ 11
Monitor system............................................................................................................................ 36
Sensor ......................................................................................................................................... 63
KOMTRAX terminal system ........................................................................................................ 66
20 Standard value table
Standard service value table SEN02624-00
Standard value table for engine related parts.............................................................................. 2
Standard value table for chassis related parts............................................................................ 3
30 Testing and adjusting
Testing and adjusting, Part 1 SEN02625-00
Tools for testing, adjusting and troubleshooting .......................................................................... 3
Measuring engine speed............................................................................................................. 7
Measuring air boost pressure...................................................................................................... 8
Measuring exhaust gas color ...................................................................................................... 9
Adjusting valve clearance ........................................................................................................... 11
Measuring compression pressure ............................................................................................... 13
Measuring blow-by pressure ....................................................................................................... 17
SEN01985-03 00 Index and foreword
6 PC300, 350-8
Measuring engine oil pressure .................................................................................................... 18
Measuring fuel pressure.............................................................................................................. 19
Handling during cylinder cut-out operation.................................................................................. 23
Handling during no injection cranking operation ......................................................................... 23
Measuring fuel return rate and leakage....................................................................................... 24
Bleeding air from fuel circuit........................................................................................................ 26
Checking fuel circuit for leakage ................................................................................................. 27
Testing and adjusting air compressor belt tension ...................................................................... 28
Measuring clearance in swing circle bearings............................................................................. 29
Testing and adjusting track shoe tension .................................................................................... 30
Testing and adjusting oil pressurein work equipment, swing and travel circuit .......................... 31
Testing and adjusting control circuit oil pressure......................................................................... 35
Testing and adjusting pump PC control circuit oil pressure......................................................... 36
Testing and adjusting pump LS control circuit oil pressure ......................................................... 39
Measuring solenoid valve output pressure.................................................................................. 44
Measuring PPC valve output pressure........................................................................................ 48
Adjusting play of work equipment and swing PPC valves........................................................... 49
Inspecting locations of hydraulic drift of workequipment ............................................................ 50
Releasing remaining pressure in hydraulic circuit ....................................................................... 52
Measuring oil leakage amount ....................................................................................................52
Bleeding air from various parts.................................................................................................... 55
Diode inspection procedures....................................................................................................... 57
Testing and adjusting, Part 2 SEN02626-00
Special functions of machine monitor.......................................................................................... 2
Testing and adjusting, Part 3 SEN02663-00
Handling voltage circuit of engine controller................................................................................ 2
Preparation work for troubleshooting of electrical system........................................................... 3
Procedure for testing diodes ....................................................................................................... 7
Pm clinic service.......................................................................................................................... 8
40 Troubleshooting
Failure code table and fuse locations SEN02627-00
Failure codes table ...................................................................................................................... 2
Fuse locations ............................................................................................................................. 5
General information on troubleshooting SEN02628-00
Points to remember when troubleshooting.................................................................................. 2
Sequence of events in troubleshooting ....................................................................................... 3
Checks before troubleshooting.................................................................................................... 4
Classification and troubleshooting steps ..................................................................................... 5
Information in troubleshooting table ............................................................................................6
Connection table for connector pin numbers............................................................................... 11
T-adapter box and T-adapter table .............................................................................................. 45
Troubleshooting by failure code (Display of code), Part 1 SEN02629-00
Failure code [A000N1] Eng. Hi Out of Std................................................................................... 3
Failure code [AA10NX] Air cleaner Clogging .............................................................................. 4
Failure code [AB00KE] Charge Voltage Low............................................................................... 6
Failure code [B@BAZG] Eng Oil Press. Low .............................................................................. 8
Failure code [B@BAZK] Eng Oil Level Low ................................................................................ 10
Failure code [B@BCNS] Eng. Water Overheat........................................................................... 12
Failure code [B@BCZK] Eng Water Level Low........................................................................... 14
Failure code [B@HANS] Hydr Oil Overheat................................................................................ 16
Failure code [CA111] EMC Critical Internal Failure ..................................................................... 17
Failure code [CA115] Eng Ne and Bkup Speed Sens Error ........................................................ 17
Failure code [CA122] Chg Air Press Sensor High Error.............................................................. 18
Failure code [CA123] Chg Air Press Sensor Low Error .............................................................. 20
Failure code [CA131] Throttle Sensor High Error........................................................................ 22
Failure code [CA132] Throttle Sensor Low Error ........................................................................ 2

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