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Figure 56
Replacing the Caster Wheel
Fork Bushings
The caster wheel forks are mounted in bushings
pressed into the top and bottom of the carrier
frame mounting pivot tubes. To check the
bushings, move the caster forks back and forth and
side-to-side. If a caster fork is loose, the bushings
are worn and must be replaced.
1. Raise the cutting unit so the caster wheels are
off the floor, then support the front of the
mower with jack stands.
2. Remove the locking pin and spacer(s) from the
top of the caster wheel fork (Figure 57).
Figure 57
1. Locking Pin
2. Spacers
3. Carrier frame pivot tube
4. Caster wheel fork
3. Pull the caster wheel fork out of the mounting
tube, leaving the spacer(s) on the bottom of
the fork. Remember the location of the spacers
on each fork to ensure correct installation, and
to maintain a level deck.
4. Insert a pin punch into the mounting tube and
carefully drive out the bushings (Figure 58).
Clean the inside of the mounting tube.
Figure 58
1. Mounting Tube
5. Grease the inside and outside of the new
bushings. Use a hammer and flat plate to
carefully drive the bushings into the pivot
tubes.
6. Inspect the caster wheel fork for wear and
replace if necessary (Figure 57).
7. Slide the caster wheel fork through the
bushings in the mounting tube. Replace the
spacer(s) onto the fork and secure with the
retaining ring (Figure 57).
Important: The inside diameter of
the bushings may collapse slightly when
installed. If the caster wheel fork does not
slide into the new bushings, ream both
bushings to an inside diameter of 1.126
inch (29 mm).
8. Grease the fitting on the carrier frame pivot
tubes using No. 2 general purpose lithium base
or molybdenum base grease.
44
2. Bushing
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