Maintenance
17
ENGINE DUST FILTER
1.
The engine dust filter should be cleaned each hour and after each use by shaking
out the dust and then rinsing with water and mild detergent. The filter can also be
vacuumed with a wet-dry vacuum (Figure 16).
2. Squeeze out excess water (do not wring).
3.
Allow the filter to air dry.
Failure to maintain a clean engine filter will cause the engine to overheat. Also, it may
cause the exhaust emissions to elevate to harmful levels. If necessary, replace.
COOLING FINS
1. Remove blower housing and any other shrouds.
2.
Clean the cooling fins as necessary using compressed air or pressure washer.
3. Re-install all housings and shrouds.
PAD AND PAD HOLDERS
1. Push machine to level surface.
2. Turn off LP cylinder and remove it.
3. Place machine in Rok-Bak position.
4. Remove centering device and inspect the pad. If the pad has worn less than 1/4”
(6 mm), replace it.
5. Inspect the pad holder for cracks or damage. If the pad holder does not have any
damage, proceed to step 9.
6. If the pad holder needs to be removed, a 3/4” wrench will be required. Locate the
wrench flats on top of the spindle shaft. With the spindle shaft secure, turn the pad
holder counterclockwise until it is free of the spindle shaft.
7. Save the washer and/or spacer that is on the spindle shaft; use the wrench to keep
the shaft from turning. Be sure the pad holder is tight before proceeding.
8. Secure the pad with the centering device.
9. Lower the machine.
BELTS
1. Push machine to level surface.
2. Turn off LP cylinder and remove it.
3. Place machine in Rok-Bak position.
4. Rotate the pad drive and inspect the belt.
5. If cracks or excessive wear are present, the belt needs to be replaced.
6. To check for the proper tightness, squeeze the belt together. The belt should de-
press between 1/4” (.6 cm) and 1/2” (1.3 cm).
To change the belt:
1. Place the machine in the Rok-Bak position. Remove the pad holder by holding the
FIG. 16
WARNING:
A DAMAGED PAD HOLDER ROTATING AT A HIGH RATE OF SPEED
MAY BE AN EXTREME HAZARD SHOULD IT COME APART.