Komatsu PC88MR-10 Shop Manual page 1177

8. Disconnect all wiring (8) installed around the
control valve assembly.
9. Remove clamps (9) and (10).
10.Disconnect hoses (11) to (15).
(11): PR port hose
(12): P1 port hose
(13): P2 port hose
(14): P3 port hose
(15): PP port hose
11.Disconnect hoses (16) to (19).
(16): A8 port hose
(17): A7 port hose
(18): B8 port hose
(19): B7 port hose
(20): A6 port hose
(21): B6 port hose
PC88MR-10
50 Disassembly and assembly
a If there is difficulty in performing the work,
disconnect the hose, and then remove the
nipple. At this time, note the removed
position of them.
12.Disconnect hoses (22) to (24).
(22): LS port hose
(23): A5 port hose
(24): B5 port hose
13.Disconnect hoses (25) and (26).
(25): A4 port hose
(26): B4 port hose
Hydraulic system
50-149