Removal And Installation Of Work Equipment Assembly - Komatsu Galeo PC138US-8 Shop Manual

SEN02714-00
Removal and installation of work
equipment assembly
Special tools
Sym-
Part No.
bol
792-785-1100
796-270-1110
V 1
790-101-4000
790-101-1102
Removal
k
Fully extend the work equipment and set a
block at the arm end and lower the bucket
tip to the ground.
k
Disconnect the cable from the negative (–)
terminal of the battery.
1. Remove handrail (1), then remove covers (2)
and (3).
2. Remove undercovers (4) and (5) from boom
mounting section.
2
Part name
t 1
Remover
1
• Adapter
• Puller
1
(490 kN {50 ton})
1
• Pump
3. Disconnect working lamp wiring connector (6)
and clamp (7).
1
4. Remove guard (8).
5. Disconnect hoses (9) (Arm cylinder bottom),
(10) (Bucket cylinder bottom), (11) (Arm cylin-
der head), and (12) (Bucket cylinder head).
a Since the engine will be started, be sure to
plug the disconnected hoses.
6. Disconnect grease tube (13).
7. Remove lock bolt (14). [*1]
8. Remove plate and push out pin (15) to the
opposite side until it is removed from cylinder
head. [*2]
a Check the number and location of the
shims.
9. Lower boom cylinder (16) onto block [1].
a Connect the cable of the negative (–) ter-
minal of the battery and start the engine
and retract the boom cylinder.
a Disconnect the cable from the negative (–)
terminal of the battery again.
10. Remove plug (17) from boom foot pin (19).
11. Remove mounting bolts to remove lock plate
(18).
50 Disassembly and assembly
PC138US, USLC-8