Komatsu Galeo PC800-8 Shop Manual page 1021

50 Disassembly and assembly
4-spool control valve
7. Disconnect 14 PPC hoses (9).
8. Disconnect travel (10), boom (11), bucket (12),
and arm (13) tubes.
9. Disconnect tube (14) between the 5-spool con-
trol valves.
10. Disconnect tube (43) and hose (44) from the
bottom.
11. Sling 4-spool control valve assembly (16) tem-
porarily, loosen 3 mounting bolts (15), and
remove 4-spool control valve assembly (16).
4
4-spool control valve assembly: 250 kg
PC800, 850-8
5-spool control valve
12. Disconnect the lower back pressure compen-
sation valve hose and sensor (6).
13. Disconnect hose clamps (45).
14. Disconnect left swing motor hose (17).
15. Disconnect right swing motor hose (18).
16. Remove tube clamp (19) and tube (20).
17. Remove piping brackets (21) and (22).
18. Remove boom (23), swing (24), arm (25),
bucket (26), and travel (27) tubes.
19. Disconnect tube (28) between the 4-spool con-
trol valves.
20. Disconnect 16 PPC hoses (29).
SEN01057-01
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