Komatsu Galeo PC800-8 Shop Manual page 7

Hydraulic excavator
Table of Contents

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00 Index and foreword
Hydraulic system, Part 2
Hydraulic system, Part 2 .............................................................................................................
Motor grease pump .................................................................................................................
Return oil filter .........................................................................................................................
Line oil filter .............................................................................................................................
Drain oil filter............................................................................................................................
L.H. 5-Spool control valve........................................................................................................
R.H. 4-Spool control valve ....................................................................................................... 14
Straight-travel valve ................................................................................................................. 20
Swing motor............................................................................................................................. 23
Center swivel joint ................................................................................................................... 28
Travel motor............................................................................................................................. 29
PPC accumulator..................................................................................................................... 39
Work equipment, swing PPC valve ......................................................................................... 40
Travel PPC valve ..................................................................................................................... 46
Solenoid valve ......................................................................................................................... 50
Quick return valve.................................................................................................................... 56
Hydraulic cylinder .................................................................................................................... 58
Work equipment
Work equipment ..........................................................................................................................
Work equipment ......................................................................................................................
Dimensions of work equipment ...............................................................................................
Cab and its attachments
Cab and its attachments..............................................................................................................
Air conditioner piping ...............................................................................................................
Electrical system
Electrical system .........................................................................................................................
Engine control..........................................................................................................................
Electric control system.............................................................................................................
Monitor system ........................................................................................................................ 45
Sensors ................................................................................................................................... 63
Standard service value table
Standard service value table for engine ......................................................................................
Standard service value table for chassis .....................................................................................
Testing and adjusting, Part 1.......................................................................................................
Tools for testing, adjusting and troubleshooting ......................................................................
Measuring engine speed .........................................................................................................
Measuring intake air pressure (Boost pressure)......................................................................
Measuring exhaust gas temperature .......................................................................................
Measuring exhaust gas color...................................................................................................
Adjusting valve clearance........................................................................................................
Measuring compression pressure ........................................................................................... 10
Measuring blow-by pressure ...................................................................................................
Measuring engine oil pressure ................................................................................................ 12
Measuring EGR valve and bypass valve drive pressure ......................................................... 13
Handling of fuel system equipment ......................................................................................... 14
Remaining pressure relief from fuel system equipment .......................................................... 14
Measuring fuel pressure .......................................................................................................... 15
Testing fuel return rate and leakage ........................................................................................ 16
Bleeding air from fuel circuit .................................................................................................... 18
Testing fuel system for leakage ............................................................................................... 20
PC800, 850-8
SEN00375-06
SEN00384-02
4
4
5
6
7
8
SEN00385-01
2
2
8
SEN00396-01
2
2
SEN00386-03
2
2
11
SEN00784-02
2
3
SEN00786-02
2
2
5
6
7
8
9
11
5

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