Dealer Service
27
MAN1313 (3/3/2021)
Seal Installation
NOTE:
Proper seal installation is important. An improp-
erly installed seal will leak.
1.
Clean area in housing where seal outer diameter
(OD) seats. Apply a thin coat of Permatex.
2.
Inspect area of shaft where seal seats. Remove
any burrs or nicks with an emery cloth.
3.
Lubricate gear shaft and seal lips.
4.
Place seal squarely on housing, spring-loaded lip
toward housing. Select a piece of pipe or tubing
with an OD that will sit on the outside edge of the
seal but will clear the housing. Tubing with an OD
that is too small will bow seal cage and ruin seal.
See Figure 22.
5.
Carefully press seal into housing, avoiding
distortion to the metal seal cage.
Figure 22
. Seal Installation
Figure 23
. Gearbox Stand Assembly
2
3
4
CD1094
1
1. Seal
2. Pipe or tube
3. Seal seat
4. Casting
Pipe or tube must
press at outer
edge of seal
CD1092
Incorrect
Installation