SEN04129-02 50 Disassembly and assembly
14 PC130-8
Removal and installation of
revolving frame assembly 1
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) and (2).
a Be sure to apply the blind plug to the dis-
connected hose.
3. Temporarily lift the boom cylinder to remove
pins (3) on the bottom.
a Check the number and position of the
shims mounted. [*1]
4. Lift boom cylinder assembly (4) to remove it.
4 Boom cylinder assembly: 110 kg
5. Remove operator cab assembly (5) by refer-
ring to "Removal of operator cab assembly".
6. Disconnect hoses (6) – (12) from center swivel
joint.
7. Disconnect plate (13) from revolving frame.
8. Remove mounting bolts (14), leaving one each
at front and rear. [*2]
9. Lift revolving frame assembly (16) to loosen
remaining bolts (15).
a Carefully remove the remaining bolts by
balancing them using the crane.
a Carefully lift and remove them to prevent
them from coming in contact with the cen-
ter swivel joint or other parts.
4 Revolving frame assembly: 6,100 kg
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