Komatsu Galeo PC138US-8 Shop Manual page 804

SEN02710-00
15. Removal of rocker arm assembly
1) Loosing lock nut (74) and fully loosen
adjustment screw (75). [*15]
a Loosen the air intake and exhaust
adjustment screws on all cylinders.
2) Remove 8 mounting bolts (76) and
remove rocker arm assembly (77). [*16]
16. Removal of cylinder head assembly
1) Pull out 8 push rods (78).
2) Remove 17 cylinder head mounting bolts
(79). [*17]
3) Lift cylinder head assembly (80) and
remove it.
4
Cylinder head assembly: 30 kg
16
50 Disassembly and assembly
Installation
Carry out the installation in the reverse order of
q
removal.
[*1] [*2]
a When installing fuel filter mounting bolts (14),
tighten wiring clamp (81) for the air conditioner
compressor together.
a When installing bracket mounting bolts (18),
tighten wiring clamp (21) for the injector
together.
[*3] [*4]
When installing air intake connector (27) and
q
electrical intake air heater (30), pay attention to
the following matters:
a When installing the air intake connector
and electrical intake air heater, replace the
gasket with new one.
a When installing air intake connector
mounting bolts (24), tighten it together
with oil level gauge pipe bracket (28).
a When installing air intake connector
mounting bolts (25), tighten it together
with oil level gauge pipe bracket (29).
a If grounding (29) is removed from electri-
cal intake air heater (30) by removing
grounding mounting bolt (81), install the
grounding mounting bolt (82) with the fol-
lowing torque:
3
Grounding mounting bolt (82):
4.9 – 5.9 Nm {0.5 – 0.6 kgm}
PC138US, USLC-8