Service Manual

Caster Wheel Bearing Service (Fig. 13)

The rear caster wheels rotate on high quality roller

bearings which are supported by spanner bushings.

Even after many hours of use, provided that the bearing

was kept well-lubricated, bearing wear will be minimal.

However, failure to keep bearings lubricated will cause

rapid wear. A wobbly caster wheel usually indicates a

worn bearing.

1. Remove capscrew and locknut holding caster wheel

etween caster fork.

2. Pull spanner bushing out of wheel hub.

3. Remove bushing from wheel hub and allow bearing

to fa

ll out. Remove bushing from opposite side of wheel

hub.

4. Check the bearing, spanner and inside of wheel hub

Figure 13

for wear. Replace defective parts.

1. Caster wheel 4. Spanner bushing

5. To assemble the caster wheel, push bushing into

2. Capscrew and locknut 5. Roller bearing

wheel hub. Slide bearing into wheel hub. Push other

3. Bushing (2)

bushing into open end of wheel hub to captivate the

bearing inside the wheel hub.

6. Carefully slide spanner through the bushings and

wheel hub.

7. Install caster wheel assembly between caster fork,

and secure all parts in place with capscrew and locknut.

8. Lubricate caster wheel bearing through grease fitting,

using No. 2 general purpose lithium grease.

Groundsmaster

300 Series Page 13 - 11 Repairs