Komatsu Galeo PC800-8 Shop Manual page 939

50 Disassembly and assembly
Installation
a Check the Teflon seal (Laydown lip seal) by
checking the wear of the shaft and replace it
with the "standard seal" or "sleeved seal".
If the shaft is worn to the degree of luster (If
wear which you feel with your finger is less
than 10 mm) and does not have any flaw, install
standard seal (A). In other cases, install
sleeved seal (B).
a (3): Plastic inside cylinder which is also
used as installation guide.
a (5): Sleeve.
a Do not remove installation guide (3) from
rear seal (2) before installing the rear seal.
a Handle rear seal (2) and sleeve (5) as an
assembly and never separate them from
each other.
Standard spare seal
q
a Clean, degrease, and dry the seal surface
on the flywheel housing side.
a Clean, degrease, and dry the seal lip sur-
face (periphery of the crankshaft).
a Before installing the seal, check that the
end corners and lip sliding surfaces of the
crankshaft are free from flaw, burr, and
rust of the housing.
PC800, 850-8
Sleeved seal
q
1. Procedure for installing standard seal
a When installing rear seal (2), do not apply
oil or grease to the shaft and seal lip.
1) Set large inside diameter side (b) of plas-
tic inside cylinder (3) of rear seal (2) to the
end of crankshaft (4).
a Take care not to mistake the direction
of the plastic inside cylinder.
2) Hold the metal ring of rear oil seal (2) with
both hands and push it in evenly.
3) After pushing in the seal, remove plastic
inside cylinder (3).
a When removing the inside cylinder,
take care not to damage the seal lip.
SEN01054-01
29