Removal And Installation Of Engine Rear Seal - Komatsu Galeo PC800-8 Shop Manual

SEN01054-01
Removal and installation of
engine rear seal
Special tools
Part number
2 790-331-1110 Wrench (Angle)
3 795-931-1100 Seal puller
795T-421-1230 Push tool
4 01050-31645 Bolt
A
01050-31625 Bolt
795T-421-1220 Push tool
5 01050-31625 Bolt
01050-31645 Bolt
Removal
1. Remove the PTO assembly and hub assembly.
For details, see "Removal and installation of
PTO assembly".
2. Remove 1 mounting bolt of flywheel (1) and
install guide bolt.
3. Using eyebolt [1] (12 mm, P = 1.75), sling fly-
wheel (1) temporarily and remove the 8 mount-
ing bolts.
4. Move flywheel (1) toward this side and lift it off.
k
Since the socket part of the flywheel is
shallow, it may fall suddenly. Take care
not to catch your fingers in the fly-
wheel.
4
Flywheel: 65 kg
5. Remove rear seal (2) according to the follow-
ing procedure.
a Measure the distance from the end of the
housing.
28
Part name
q 1
t 1
t 1 N Q
t 4
t 4
t 1 N Q
t 4
t 4
1) Before pulling out rear seal (2), drive in it a
little to separate it from the flywheel hous-
1
ing (FWH).
2) If the seal is sleeved, cut and remove
sleeve (5) with a chisel and a hammer.
a When cutting, take care extremely not
to damage crankshaft (4).
3) Hitch the end of tool A3 to the metal ring
of rear seal (2) and pull out the seal with
impacts of slide hammer (SH).
a Do not use a drill etc. since chips may
enter the engine.
a If chips were made, remove all of
them.
Tool A3
q
a Left: Standard seal, Right: Sleeved seal
50 Disassembly and assembly
PC800, 850-8