Replacing Hydrostat. Trans. Axle Seals; Ingoing Axle - Husqvarna Rider 850 Workshop Manual

Replacing hydrostatic transmission
axle sealing collars
1
2
1
Take the hydrostatic transmission out of the ride-
on mower, as indicated in previous description
(see page 26).
Remove the pulley (1) from the ingoing axle by
pulling it upwards. Then dismantle the circlip under
the pulley.
2
Dismantle the circlips which hold the wheel hubs
(2) at the axles and remove the hubs by pulling
them outwards. Do not lose the key which sits
between the hub and the axle.
Sealing collar replacement - ingoing axle
1
• Clean the ingoing axle and the area around the
sealing collar of all dirt and rust.
• Insert a screwdriver between the sealing collar
and the axle and bend the sealing collar out of
the axle housing with a twisting motion.
IMPORTANT INFORMATION
The area around the sealing collar must
be absolutely clean! If the hydrostatic oil
is contaminated with dirt, this can lead to
a shorter hydrostatic transmission
operational life.
2
2
• Wrap insulation tape around the ingoing axle to
protect the new sealing collar from damage to
splines and grooves.
Start by wrapping from the bottom and continue
upwards over the axle until the entire axle is
wrapped in tape.
• Lubricate the axle and the inside of the new
sealing collar with grease so that the collar can
slide easily.
3
• Place the sealing collar on the axle with the
smooth side upwards, and carefully press it
downwards.
• Use the thick end of a 1/4" extender to carefully
knock down the sealing collar until the upside of
the collar is level with the axle housing's upper
edge.
Move the extender in a circle around the sealing
collar so that it is evenly pressed down, all the
way around.
• Remove the insulation tape from the axle and
assemble the lower circlip and the pulley with the
hexagonal hub facing upwards.
• Fasten the fan and the washer and assemble the
upper circlip.
• Install the hydrostatic transmission in the ride-on
mower as indicated in the previous description
(see page 26).
Reparation instructions
29
English –