Komatsu PC88MR-10 Shop Manual page 1122

50 Disassembly and assembly
Power train system
16.Remove ball bearing
a Remove the ball bearing only for
replacement.
1) Set No.2 holder [4] on the press stand and
set shaft (102) to the inside.
2) Hold shaft (102) by using the press to pull out
it from ball bearing (149).
a Do not reuse ball bearing (149).
17.Remove ring nut (27).
1) Install fixing tools [9a] (3 pieces or 1 piece) to
hub (1) and spindle (2), and fix them.
a Install fixing tools [9a] evenly.
2) Invert travel motor assembly (1a) so that the
final drive faces upward.
3) Remove hexagonal socket head bolts (47) (2
pieces) from spindle (2).
50-94
4) Loosen ring nut (22) by using jig [8].
5) Remove ring nut (22) from spindle (2).
a Do not reuse removed ring nut (22)
because the tooth surface may be
damaged.
PC88MR-10