Komatsu Galeo PC138US-8, Shop Manual, Page: 7 / 946

00 Index and foreword SEN01977-02
PC138US, USLC-8
5
Swing motor ................................................................................................................................ 19
Travel motor ................................................................................................................................ 27
Center swivel joint ....................................................................................................................... 36
Solenoid valve............................................................................................................................. 40
PPC accumulator ........................................................................................................................ 44
Holding valve............................................................................................................................... 46
Multi-control valve ....................................................................................................................... 51
Work equipment SEN02551-00
Work equipment .......................................................................................................................... 2
Dimensions of components......................................................................................................... 4
Hydraulic cylinder........................................................................................................................ 8
Cab and its attachments SEN02552-01
Air conditioner ............................................................................................................................. 2
Electrical system SEN02553-01
Electronic control system ............................................................................................................ 2
Monitor system............................................................................................................................ 35
KOMTRAX system ...................................................................................................................... 49
Sensor......................................................................................................................................... 51
20 Standard value table
Standard service value table SEN02457-01
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 SEN02458-01
Tools for testing, adjusting, and troubleshooting ......................................................................... 3
Testing engine speed .................................................................................................................. 6
Testing exhaust temperature....................................................................................................... 7
Checking exhaust gas color ........................................................................................................ 8
Adjusting valve clearance ........................................................................................................... 9
Testing compression pressure .................................................................................................... 11
Testing blow-by pressure ............................................................................................................ 13
Testing engine oil pressure ......................................................................................................... 14
Handling fuel system parts .......................................................................................................... 15
Releasing residual pressure from fuel system ............................................................................ 15
Testing fuel pressure ................................................................................................................... 16
Testing fuel return rate and fuel leakage ..................................................................................... 17
Bleeding air from fuel circuit........................................................................................................ 19
Checking fuel circuit for leakage ................................................................................................. 21
Testing and adjusting alternator belt tension............................................................................... 22
Testing swing circle bearing clearance........................................................................................ 23
Checking and adjusting air conditioner compressor belt tension ................................................ 24
Checking and adjusting track shoe tension................................................................................. 25
Testing and adjusting oil pressure in work equipment, swing, and travel circuits........................ 27
Testing control circuit basic pressure .......................................................................................... 30
Testing and adjusting oil pressure in pump PC control circuit..................................................... 31
Testing and adjusting oil pressure in pump LS control circuit ..................................................... 34
Testing solenoid valve output pressure ....................................................................................... 38
Testing PPC valve output pressure ............................................................................................. 39
Adjusting play of work equipment and swing PPC valves........................................................... 41
Checking parts which cause hydraulic drift of work equipment................................................... 42
Testing and adjusting travel deviation ......................................................................................... 44
Releasing residual pressure from hydraulic circuit...................................................................... 46
Testing oil leakage....................................................................................................................... 47
Bleeding air from each part ......................................................................................................... 50