Komatsu PC88MR-10 Shop Manual page 1113

Part
Part name
number
Hexagonal socket head
47
bolt:
51 Bolt
Plug
321
Plug
321
Hexagonal socket head
345
bolt:
Hexagonal socket head
382
bolt:
Weight table
Part
Part name
number
Travel motor assembly
-
1 Hub
Spindle
2
301, etc. Rear flange assembly
Disassembly
(PC88MR-DF10-530-K-01-A)
Preparation items
1. Preparation before disassembly
1) Preparation of work stand
Prepare the work stand for disassembly
and assembly of the travel motor.
Prepare the robust work stand that can
be used for disassembly and assembly of
the travel motor internal parts and on
which the parts can be put.
Spread a rubber or vinyl sheet on the
work stand.
2) Prepare the above tools and equipment.
2. General precautions for working
Oil is applied to the internal parts during
disassembly, and they are slippery.
Handle the parts carefully to prevent the parts
from falling. Otherwise, personal injury may
occur and the parts may be damaged.
Flammable material such as JIS No.1
kerosene is used for cleaning the parts.
Handle the material carefully because it
may ignite and cause fire or burn.
1) Get full understanding of the testing items
and the existing abnormal conditions before
disassembly. Proceed with the disassembly
work according to the procedures.
2) Handle each part carefully because they are
extremely precise parts. Do not hit the parts
each other or drop them.
3) Do not pat or pry the parts forcibly during
disassembly. Otherwise, burr or damage
PC88MR-10
Width
Nominal of parts across flats
(mm)
M8 (P1.25)
3
M10 (P1.5)
17
PF3/8 8
M30 (P1.5)
36
M12 (P1.75)
10
PF1/2 10
Weight (kg)
85
25
25
15
4) If leaving the parts during disassembly and
5) When disassembling, make a match mark on
6) To prevent from the parts being damaged or
7) Do not reuse the disassembled or removed
8) Illustration shown of this section is a typical
a For the part number that is not described in
1. Cleaning of travel motor assembly
1) Install eyebolts [10] (2 pieces) to the
50 Disassembly and assembly
Q'ty Torque (Nm {kgm})
9.81 ± 1.60 {1.0 ± 0.2}
2
57.9 ± 9.81 {5.9 ± 1.0}
4
58.8 ± 9.81 {6.0 ± 1.0}
1
353 ± 39.2 {36 ± 4.0}
2
102 ± 15.7 {10.4 ± 1.6}
8
98.1 ± 19.6 {10 ± 2.0}
3
may occur. The parts may not be installed
and the performance may be deteriorated.
disassembled parts, the parts may be rusted
due to humidity or dust. Before leaving the
parts, be sure to perform the rust-proofing or
dust-proofing.
the mating surfaces of the parts.
lost during disassembly, order and store the
removed parts.
seals. Replace them with new ones.
model. Therefore, disassembly procedure is
not changed even if the shown parts are
partially different from the actual machine.
the figure of this manual, see ""Component
parts figure"".
mounting bolt hole of spindle (2).
a Install eyebolts [10] (2 pieces)
symmetrically.
Power train system
50-85