12
12.
Slide the hydraulic motor and motor housing into
position and secure it with the bolts removed in step 2.
13.
Install the side guard and secure it with the bolts
removed in step 1.
Replacing the Castor Fork
Bushings
After many hours of operation, the bushings pressed into
the top and bottom of the frame bracket will wear. To
check the bushings, move the castor fork fore and aft and
from side to side. If the castor spindle is loose in the
bushings, the bushings are worn and must be replaced.
1.
Start the engine and raise the broom to highest
possible position.
2.
Install the cylinder locks then stop the engine.
3.
Remove the cap and thrust washers from top of castor
spindle.
4.
Pull the castor spindle out of the bracket, allowing the
thrust washers to remain on the bottom of the spindle.
5.
Using a pin punch, drive the bushings out of the
bracket (Fig. 22).
1
2
2
Figure 22
1. Frame bracket
2. Bushing
6.
Clean inside of the bracket 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 bracket (Fig. 22)
9.
Inspect the castor shaft for wear and replace it if
necessary.
10.
Install the castor spindle into the bracket, place the
thrust washers onto the spindle, and secure it with the
cap.
Servicing a Castor Wheel
When a castor wheel becomes wobbly, it usually indicates
that the wheel bearings are worn. Perform this procedure
to fix a wobbly castor wheel.
1.
Start the engine and raise the broom to highest
possible position.
2.
Install the cylinder locks then stop the engine.
3.
Remove locknut and capscrew that secure the castor
wheel assembly in the castor fork
(Fig. 23).
4.
Remove the castor wheel from the fork (Fig. 23).
5.
Remove the outer bearing from wheel hub and allow
the bearing spacer to fall out (Fig. 23).
6.
Remove the other outer bearing (Fig. 23).
3
5
2
6
5
4
1
Figure 23
1. Castor fork
2. Castor wheel
3. Capscrew
4. Locknut
5. Outer bearing
6. Bearing spacer
7.
Check the bearings, spacer, and inside of wheel hub
for wear. Replace any defective parts.
8.
Push an outer bearing into the wheel hub.
9.
Slide the bearing spacer into the wheel hub.
10.
Push other bearing into the open side of the wheel hub
to captivate the spacer inside.
11.
Install castor wheel assembly in the castor fork and
secure it in place with a capscrew and locknut.
Storage
1.
Before long term storage wash the attachment with
mild detergent and water to remove dirt and grimee.
2.
Check the condition of the brushes and replace if
necessary.
3.
Apply grease to all grease fittings.
