Komatsu PC88MR-10 Shop Manual page 1178

50 Disassembly and assembly
Hydraulic system
14.Disconnect hoses (27) and (28).
(27): A3 port hose
(28): B3 port hose
15.Disconnect hoses (29) and (30).
(29): A2 port hose
(30): B2 port hose
16.Disconnect hoses (31) to (38).
(31): A2 port hose
(32): B2 port hose
(33): TS port hose
(34): PA1 port hose
(35): PA5 port hose
(36): PA4 port hose
(37): PA3 port hose
(38): PA2 port hose
50-150
17.Disconnect TSW port hose (39), and install the
eyebolt to bolt hole (40).
18.Remove mounting bolts (41) (4 pieces) and
remove control valve assembly (42).
Control valve assembly (42):
73 kg
Installation
(PC88MR-C030-720-K-00-A)
Perform installation in the reverse order to
removal.
a Be careful not to connect the hose to the
incorrect installation position.
[*1]
Hydraulic oil drain plug (1):
58.8 to 78.4 Nm {6 to 8 kgm}
Refill with oil (Hydraulic tank)
PC88MR-10