Removal And Installation Of Revolving Frame Assembly - Komatsu Galeo PC138US-8 Shop Manual

SEN02712-00
Removal and installation of
revolving frame assembly
Removal
k
Disconnect the negative (–) terminal of the
battery.
1. Remove the work equipment assembly by
referring to "Removal of work equipment
assembly".
2. Disconnect boom cylinder hoses (1) (right) and
(2) (left).
a Be sure to apply the blind plug to the dis-
connected hose.
3. Remove covers (3) and (4).
4. Temporarily lift the boom cylinder to remove
pins (5) on the bottom.
a Check the number and position of the
shims mounted. [*1]
5. Lift boom cylinder assembly (6) to remove it.
4
Boom cylinder assembly: 120 kg
6. Remove operator cab assembly (7) by refer-
ring to "Removal of operator cab assembly".
14
7. Disconnect drain hose (8) and hoses (9) and
(10) between control valve and left travel motor
1
from center swivel joint.
8. Disconnect hoses (11) and (12) between con-
trol valve and right travel motor.
9. Disconnect hoses (13) between solenoid valve
(Boost) and both travel motors.
10. Disconnect plate (14) from revolving frame.
11. Remove mounting bolts (15), leaving one each
at front and rear. [*2]
50 Disassembly and assembly
PC138US, USLC-8