Komatsu PC88MR-10 Shop Manual page 1118

50 Disassembly and assembly
Power train system
2) Remove spring retainers (325) (2 pieces)
and springs (328) (2 pieces) from rear flange
(301).
3) Remove spool (323) from rear flange (301).
a Spool (323) can be removed by inclining
rear flange (301). Pinch the tip of the
spool, and remove it.
4) Remove O-ring (336) from plug (324).
a Do not reuse removed O-rings (336).
5) Remove plugs (382) (2 pieces) from rear
flange (301).
50-90
6) Remove springs (330) (2 pieces) and valves
(327) (2 pieces) from rear flange (301).
7) Remove O-ring (338) from plug (382).
a Do not reuse removed O-rings (338).
11.Removal of pilot valve
1) Press stopper (364) by using steel bar [6a].
2) Keep the above state, and press the notch of
ring (365) by using pin punch [9].
3) Remove ring (365) from rear flange (301).
a Do not reuse ring (365).
a Remove ring (365) only for replacement
of valve (363).
a Repair the holes cleanly after
disassembly because the holes are
damaged after removing ring (365).
PC88MR-10