Removal And Installation Of Engine Rear Oil Seal - Komatsu PC88MR-10 Shop Manual

50 Disassembly and assembly
Engine and cooling system

Removal and installation of engine rear oil seal

a Special tools
Sym-
Part No.
bol
795T-221-1020 Plate
790-101-5401 Push tool kit
790-101-5431
A 3
790-101-5421
01010-51240
Removal
(PC138-A510-520-K-00-A)
1. Remove main pump assembly. For details, see
"Removal and installation of main pump
assembly".
2. Removal of flywheel
1) Remove mounting bolts (1) (6 pieces), and
remove coupling (2). [*1]
2) Sling flywheel (3).
3) Remove flywheel (3) mounting bolts (5
pieces) but leave the remaining one. [*2]
4) Remove the remaining mounting bolt (4) (1
piece), sling flywheel (3), and remove it.
Flywheel:
40 kg
a Be careful not to remove the guide bolt.
3. Removal of rear oil seal
50-58
Part name
t 1
t 1
Plate
1
Grip
1
Bolt 1
(PC138-A510-924-K-00-A)
1) Screw a slide hammer, etc. in the metal ring
of rear oil seal (5), and pull out the rear oil
seal by using the the impact of the slide
hammer.
a Before pulling out the seal, drive the seal
inward a little to separate it from the housing
for easy removal.
a Do not use a drill, etc. as metal chips may
enter the engine.
Installation
(PC138-A510-720-K-00-A)
a Before installing the rear oil seal, check that the
end corner and the lip sliding surface of the
crankshaft are free from a flaw, burr, fin, and
rust.
1. Install rear oil seal (5) by using tool A3.
2. After press-fitting the rear oil seal, fill the space
between oil seal lips with approximately 3 cc of
grease.
Rear oil seal:
Grease (G2-LI)
PC88MR-10