Removal And Installation Of Engine Rear Oil Seal Assembly - Komatsu WA250-6 Shop Manual

200 Engine and cooling system

Removal and installation of engine rear oil seal assembly

Removal and installation of
engine rear oil seal assembly
Special tools
Symbol Part No.
A 2 795-799-6500 Seal puller
Removal
k
Stop the machine on a level ground and set
the lock bar to the frame to fix the front and
rear frames.
k
Lower the work equipment to the ground,
stop the engine, apply the parking brake,
and put chocks under the tires.
k
Disconnect the cable from the negative (–)
terminal of the battery.
k
If the radiator coolant temperature is high,
you may scald yourself with the hot cool-
ant. Wait until the coolant is cooled, and
then drain the coolant.
1. Loosen the radiator cap to drain the coolant.
6
Radiator: Approx. 22 l
2. Remove the engine hood assembly. For
details, see "Removal and installation of
engine hood assembly".
3. Remove the engine assembly. For details, see
"Removal and installation of engine assembly".
4. Remove 8 mounting bolts (1) and damper
flange (2).
WA250, 250PZ-6
Part name
t 1
[*1]
5. Install eyebolt [1] to the damper mounting bolt
hole and sling flywheel assembly (4).
1
6. Remove the 2 flywheel mounting bolts and
install guide bolts [2].
7. Remove other 6 mounting bolts (3) and lift off
flywheel assembly (4).
4
Flywheel assembly: 45 kg
8. Engine rear oil seal
1) Install tool A2 to the crankshaft.
2) Tighten tapping screw [3] of tool A2 into
the seal carrier of engine rear oil seal (5).
3) Rotate the wrench handle clockwise to
remove engine rear oil seal (5).
SEN03852-00
[*2]
43
50-200