Removal And Installation Of Center Swivel Joint Assembly - Komatsu Galeo PC800-8 Shop Manual

50 Disassembly and assembly
Removal and installation of center
swivel joint assembly
Removal
k
Lower the work equipment to touch the
ground completely and stop the engine.
k
Slowly loosen the cap of the hydraulic oil
tank to release the inside pressure of the
hydraulic oil tank.
k
Release the residual pressure from the
hydraulic circuit. For details, see Testing
and adjusting, "Releasing residual pres-
sure from hydraulic circuit".
a Before disconnecting the hoses, make match
marks on them. After disconnecting them,
install oil stopper plugs to them and center
swivel joint assembly.
a Prepare an oil receiver.
1. Separate the lower section hoses (1), (2), (3)
and (4) of the swivel joint.
2. Remove work equipment hose (5).
3. Remove swing motor hoses (6).
4. Disconnect hoses (7) – (12) from the top of the
swivel joint.
PC800, 850-8
1
5. Pull out pin (13) and move link (14) toward the
frame.
6. Temporarily hang the swivel joint assembly.
a Use the hole of the split flange bolt.
7. Removing the lower side mounting bolt, hang
the swivel joint assembly (15) to remove it. [*1]
4
Center swivel joint assembly: 70 kg
SEN01057-01
27