Replacing The Hydrostatic Transmission Shaft Seals - Husqvarna Rider ProFlex 21 II Workshop Manual

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Replacing the Hydrostatic
Transmission Shaft Seals
Seal Replacement, Ingoing Shaft
1. Remove the fan; it is held in place by a
nut.
2. Remove the belt pulley from the ingoing
shaft by pulling it outwards and then
removing the circlip under the pulley.
IMPORTANT INFORMATION
The area around the seal must be
absolutely clean! If the hydrostatic
transmission's oil becomes
contaminated by dirt it can shorten the
life of the transmission.
3. Clean the ingoing shaft and the area
around the seal from all dirt and rust.
4. Insert a screwdriver between the seal
and the shaft and pry off the seal from
the shaft housing with a twisting motion.
5. Wind the insulating tape around the
ingoing shaft in order to protect the new
seal from damage from splines and
grooves.
Begin winding from the bottom and
continue upwards along the shaft until
the entire shaft is wound in tape.
6. Lubricate the shaft and the inside of the
new seal with lubricant so that the seal
slips on smoothly.
7. Place the seal on the shaft with the
smooth side up and press it carefully
down.
Use the thick end of a 1/4" extender to
carefully tap the seal down until the top
of the seal is even with the upper edge of
the shaft housing.
Move the extender in a circle around the
seal so that it is pressed down evenly all
around.
8. Remove the insulation tape from the
shaft and fit the lower circlip and belt
pulley with the hexagonal hub face up.
9. Fit the fan and the washer and the upper circlip.
REPAIR INSTRUCTIONS
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Pry off the seal
Winding the insulating tape
Carefully tap the seal in place.
6012-042
6012-043
6012-044
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