Komatsu PC88MR-10 Shop Manual page 1114

50 Disassembly and assembly
Power train system
2) Sling travel motor assembly (1a) and move it
to the cleaning tank.
Travel motor assembly (1a):
85 kg
3) Use a brush to securely clean travel motor
assembly (1a).
a Soil or sand is entered into the area
between hub (1) and spindle (2) (floating
seal mounting portion). Therefore,
securely clean the assembly.
2. Setting travel motor
1) Sling travel motor assembly (1a) and set it to
work stand [1].
a Set travel motor assembly (1a) while
aligning the bolt hole of hub (1) with the
hole of work stand [1].
50-86
2) Install hexagonal socket head bolts [1a] (2
pieces) symmetrically.
Tighten hexagonal socket head bolts
[1a] (2 pieces). (To protect the travel
motor assembly from falling off the
work stand when inverting it.
3. Draining oil in final drive case
a When disassembling the rear flange only,
proceed to "8. Removal of rear flange".
1) Invert the travel motor assembly so that the
final drive faces upward.
2) Remove flange plug (33) and plug (39).
a Remove O-ring (37) of plug (39). Do not
reuse it.
3) Invert travel motor assembly (1a) gradually,
and drain the oil.
a Set the oil pan [2a] under the travel motor
to receive the oil.
Final drive case:
1.1 l
PC88MR-10