Name: Komatsu Galeo PC138US-8
Brand: Komatsu
Rating: 5 (1 reviews)

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PC138US, USLC-8 1

SEN02458-01

HYDRAULIC EXCAVATOR

1SHOP MANUAL

PC138US-8

PC138USLC-8

Machine model Serial number

PC138US-8 20001 and up

PC138USLC-8 20001 and up

30 Testing and adjusting 1

Testing and adjusting, Part 1

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