Komatsu Galeo PC138US-8 Shop Manual page 801

50 Disassembly and assembly
8. Disconnection of wiring
1) Disconnect heater wiring E01 (20).
2) Disconnect injector wiring CN1 to CN4
(21).
3) Disconnect boost pressure sensor con-
nector PTIM (22).
9. Removal of air intake connector and electri-
cal intake air heater assembly
1) Remove 4 bolts (23) to (26) and remove
air intake connector (27). [*3]
a Because oil level gauge pipe bracket
(28) is tightened together with bolt
(24), tie the disconnected oil level
gauge pipe with a string to keep it out
of the way.
a Bolt (25) tightens grounding (29)
together.
2) Remove electrical
assembly (30). [*4]
10. Removal of high-pressure pipe and air
intake manifold
1) Remove coolant temperature sensor wir-
ing clamp (31).
2) Remove spill hose mounting pin (32) and
disconnect spill hose (33).
3) Remove high-pressure pipe clamps (34)
at 2 locations.
4) Remove 8 boots (35) both from the cylin-
der head side and common rail side. [*5]
5) Loosen the sleeve nuts and remove 4
high-pressure pipes (36). [*6]
PC138US, USLC-8
intake air heater
6) Remove 8 air intake manifold mounting
bolts (37) and remove air intake manifold
(38). [*7]
11. Removal of injector assembly
1) Remove 4 injector mounting bolts (39) and
remove 4 holders (40). [*8]
2) Remove injector assembly (41). [*9]
12. Removal of muffler
1) Remove upper covers (42) and (43).
SEN02710-00
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