Komatsu PC88MR-10 Shop Manual page 1129

11)Remove fixing tools [9a] (3 pieces or 1 piece)
fixing hub (1) and spindle (2).
3. Assembly of inner spindle
1) Press-fit oil seal (132) to spindle (2) by using
push tool [5].
Lip of oil seal (132):
Grease (G2-LI)
a Check the installation direction of oil seal
(132), and then install it.
2) Install pins (171) (2 pieces) to pin hole (e) of
spindle (2).
3) Install pivots (167) (2 pieces) to pins (171).
Spherical part of pivot (167):
Grease (G2-LI)
PC88MR-10
50 Disassembly and assembly
4) Install spring (190) to piston assembly (piston
(161) and shoe (162)). (For details, see
"Component parts figure".)
Spring (190):
Grease (G2-LI)
4. Install shaft
1) Heat ball bearing (149) by using the heating
tank, and press-fit it to shaft (102).
Heating of ball bearing (149): 100 ±10°C, for
10 minutes
Heating and installing ball bearing
(149) may cause burn. Be sure to wear
leather gloves during the work.
2) Set No.2 holder [4] on the press stand and
set ball bearing (149) and shaft (102) to the
inside.
3) Press the shaft (102) by using the press to
press-fit it to ball bearing (149).
4) Install shaft (102) to spindle (2).
a When installing shaft (102), be careful not
to damage the lip of previously-installed
oil seal (132).
a Damage of oil seal (132) lip may cause oil
leakage and premature damage to the
travel motor.
5) Rotate spindle (2) 90 deg., and it faces
sideways.
Power train system
50-101