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

PC138US, USLC-8

1SHOP MANUAL

Serial number

20001 and up

SEN02458-01

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