Removal And Installation Of Cylinder Head Assembly - Komatsu Galeo PC138US-8 Shop Manual

SEN02710-00
Removal and installation of
cylinder head assembly
Removal
k
Disconnect the negative (–) terminal of the
battery beforehand.
1. Remove the counterweight assembly, referring
to "Removal of counterweight assembly."
2. Removal of engine controller frame assem-
bly
1) Remove engine controller mounting bolts
(1) from the upper frame (2).
2) Remove 4 lower frame mounting bolts (3).
3) Disconnect
assembly (4).
3. Removal of air conditioner compressor
1) Disconnect wiring connector AC02 (5).
2) Disconnect air conditioner hose clamps
(6) at two locations.
a Do not disconnect the air conditioner
hoses.
3) Remove air conditioner compressor drive
belt protective cover (7).
4) Loosen air conditioner compressor mount-
ing bolts (8) and remove drive belt (9).
5) Remove air conditioner compressor mount-
ing bolts (8) and remove air conditioner
compressor (10). (Keep the compressor
out of the way.)
12
engine controller frame
4. Disconnect aftercooler hose (11) from the air
intake connector (12) side.
1
5. Remove 4 mounting bolts (13) and remove the
air conditioner compressor mounting bracket.
6. Remove bolts (14) and (15) and remove fuel
filter (18). [*1]
a Bolt (14) tightens the clamp of wiring to
the air conditioner compressor together.
a Bolt (15) tightens bracket (19) together.
7. Remove bolts (16) to (18) and remove bracket
(19). [*2]
a Bolt (18) tightens the clamp of wiring to
the injector together.
50 Disassembly and assembly
PC138US, USLC-8