Komatsu PC88MR-10 Shop Manual page 1119

a If valve (363) does not come out even
when the hole faces downward, blow
compressed air from the 2nd travel speed
selector port to remove it.
If compressed air is blew in strongly, it
is dangerous because the part may
leap out. Slowly blow compressed air.
12.Disassemble parking brake
1) Blow in compressed air through oil passage
(c) for parking brake of spindle (2) to remove
piston (112).
If compressed air is blew in strongly, it
is dangerous because piston (112)
may leap out. Slowly blow
compressed air. For safety, put
protection cover [7a] before working.
2) Remove O-rings (135) and (139) from piston
(112).
a Do not reuse removed O-rings (135) and
(139).
PC88MR-10
50 Disassembly and assembly
13.Disassemble travel motor
1) Rotate spindle (2) 90deg., and it faces
sideways.
a The oil is drained from spindle (2).
Prepare the oil container under it.
2) Drain the oil from spindle (2).
3) Remove plates (116) (3 pieces) and discs
(115) (2 pieces) from spindle (2).
4) Rotate cylinder blocks (104) 2 to 3 turns
alternately, and disconnect the firm oil
contact between swash plate (103) and shoe
(106). (For details, see ""Component parts
figure"".) 5) Remove cylinder block (104)
from shaft (102).
Power train system
50-91