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Adjusting Chain Tension
Make sure chain is properly tensioned to assure proper
operation of the machine and unnecessary wear. Check
chain tension by pressing side of chain at mid span of drive
sprockets with 10 lbs. of force. Chain should deflect .10 in.
in each direction from center (.20 in. total deflection from
side to side).
1. Remove retainer knob, flat washer and retaining ring
securing chain cover to frame and remove cover
(Fig. 20).
1
Figure 20
1. Chain cover
2. To adjust chain tension:
• Loosen socket head screws and nuts securing hydraulic
motor to frame sideplate.
Figure 21
1. Hydraulic motor
2
1
2. Mounting screw & nut
15
• Rotate motor until desired chain tension is attained, then
tighten nuts.
3. Install chain cover
Changing Brush Elements
The axle assembly contains 32 brush elements.
Summer use: Polypropylene elements.
Winter use: Alternating Polypropylene and steel elements
(16 ea.).
1. Relieve chain tension. Refer to Adjusting Chain
Tension.
2. Remove chain from sprocket.
3. Remove fasteners securing axle bearings to right and
left guards. This will allow removal of axle assembly
and bearings (Fig. 22).
4. Remove axle plate from axle assembly.
5. Slide brush elements off axle assembly.
6. Slide new brush element onto axle assembly so
alignment pins of element ride over bottom bar of axle
assembly.
7. Rotate next brush element 180_ from side to side and
top to bottom and slide onto axle assembly so alignment
pins of element ride over top bar of axle assembly.
Alternating brush elements allows each wafer to obtain
maximum sweeping width.
2
3
5
1
4
Figure 22
1. Axle bearing
2. Guard
3. Axle plate
1
2
4. Axle
5. Brush element
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