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Servicing the Bushings in
the Caster Arms
The caster arms have bushings pressed into the
top and bottom of the tube and after many hours of
operation, the bushings wear. To check the bushings,
move the caster fork back and forth and from side to
side. If the caster spindle is loose inside the bushings,
the bushings are worn; replace them.
1.
Raise the cutting unit so that the wheels are off
the floor. Block the cutting unit so that it cannot
accidentally fall.
2.
Remove the tensioning cap, spacer(s), and
thrust washer from the top of the caster spindle.
3.
Pull the caster spindle out of the mounting tube.
Allow the thrust washer and spacer(s) to remain
on the bottom of the spindle.
4.
Insert a pin punch into the top or bottom of the
mounting tube and drive the bushing out of the
tube
(Figure
24).
Figure 24
1. Caster arm tube
5.
Drive the other bushing out of the tube.
Belt routing
g004737
2. Bushings
Figure 23
6.
Clean the inside of the tubes to remove any dirt.
7.
Apply grease to the inside and outside of the
new bushings.
8.
Using a hammer and a flat plate, drive the
bushings into the mounting tube.
9.
Inspect the caster spindle for wear and replace
it if it is damaged.
10.
Push the caster spindle through the bushings
and the mounting tube.
11.
Slide the thrust washer and the spacer(s) onto
the spindle.
12.
Install the tensioning cap on the caster spindle
to retain all parts in place.
Servicing the Caster
Wheels and Bearings
1.
Remove the locknut from the bolt holding the
caster wheel assembly between the caster fork
(Figure
25).
17
decal121-5498
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