PROPEL TRANSMISSION
SUBSECTION 9B
SHAFT SEAL REPLACEMENT. To replace the shaft seal,
proceed as follows:
1. Using a suitable ring pliers, remove the large retaining
ring located on the shaft end of the pump. Remove the ring
from the groove starting at the side opposite the tang (see
Figure 9B-13. Removing Bronze Sealrng Ring
4. Carefully separate and inspect the aluminum housing
components if the seal is to be reused. It is recommended
that this entire shaft seal be replaced.
5. Wash and air dry the new seal parts. Install one O-ring
(dry) in the I.D. of the bronze sealing ring and one O-ring in
Figure 9B-11. Retaining Ring Removal
the I.D. of the aluminum housing. Place the springs in the
holes in the housing (see Figure 9B-14).
2. Using two screwdrivers, pry the aluminum housing to-
ward the end of the shaft until the O-ring is free. The hous-
ing is held in place by the friction of the O-ring on the hous-
ing O.D. Remove the housing (see Figure 9B-12). The
aluminum housing is an assembly that is held together by
an O.ring. It will remain assembled until physically
separated.
Figure 9B-14. Sealing Items
6. Wrap a piece of plastic around the drive shaft and slide
the rotating bronze part over the shaft making sure it is
seated. The O-ring should face the pump. Work the ring into
place using the thumbs only (see Figure 9B-15).
Figure 9B-12. Housing Removal
7. Insert the stationary seal pilot into the aluminum hous-
3. The bronze sealing ring is held in place by an internal O-
ing, locating the notch in the stationary seal over the pin in
ring. Using two fingers, carefully slide the sealing ring over
the housing.
the pump shaft (see Figure 9B-13).
9B-10
