Removal And Installation Of Center Swivel Joint Assembly - Komatsu Galeo PC138US-8 Shop Manual

SEN02713-00
Removal and installation of center
swivel joint assembly
Removal
k
Gradually loosen the hydraulic oil tank cap
to bleed the internal air after completely
grounding the work equipment and stop-
ping the engine.
k
Disconnect the negative (–) terminal of the
battery.
1. Remove cover (1), (2) at rear of boom.
2. Remove filter and bracket assembly (3). (for
attachment specification)
3. Disconnect hoses (4) – (9) between travel
motor and swivel joint.
4. Remove elbow (10).
5. Disconnect drain hose (11).
6. Disconnect hoses (12) – (15) between control
valve and swivel joint.
7. Disconnect hose (16) from solenoid valve.
8. Remove plate (17).
2
1
9. Disconnect hoses (for changing the speed)
(18) and (19) between both travel motors and
swivel joint.
10. Remove mounting bolts and lift off center
swivel joint assembly (20). [*1]
a Sling the joint assembly temporarily, then
remove the bolts.
4
Center swivel joint assembly
50 Disassembly and assembly
: 30 kg (Standard specification)
: 45 kg (Blade specification)
PC138US, USLC-8