DANGER!
Moving belts and chipper drum can pinch body parts,
entangle loose clothing, jewelry, and long hair which may
result in cuts, mutilation, serious injury, or death. Shut
down the engine, wait for the belts and chipper drum to
completely stop rotating before initiating maintenance.
Always have belt guards attached to the machine before
initiating operation.
Debris may be projected during the maintenance of the
chipper knives and result in eye injury, skin punctures, and
cuts. Always wear protective equipment and gear such as
goggles and work gloves.
Performing maintenance with the engine ON may cause
serious injury or death. Turn the engine OFF and lock out
the machine before servicing it.
NOTE
Cleaning belts with ammable solvents will cause the belt to deteriorate.
Use a non-ammable cleaner or soap to remove grease and oil.
Use of hard tools, such as screwdrivers, crowbars, and wedges to place a
belt on the sheave can result in damage to the belt and drive.
Failure to follow the preceding guidelines may result in premature belt
failure, belt rollover, and PTO bearing failure.
Belt Tension
Before adjusting the belt tension:
1. Throttle the engine down and disengage the clutch.
2. Shut o the engine, remove the key and conduct machine lockout.
3. Remove the belt guard.
4. If maintenance is required, loosen the engine bolts, remove the belt and
x before setting belt tension.
5. Inspect and/or repair the following:
• Grease and oil on the belt: Grease and oil on a belt will cause rapid
deterioration. Clean oil and grease from the sheaves, wipe the belt with
a clean cloth
• Burrs and rust in the sheave grooves: Remove burrs and rust
• Wear, damage and misalignment of the sheaves and sprockets:
Replace if excessively worn, frayed, or soft
• Belt clearance and shaft misalignment: Adjust belt guard and shaft
Use a V-Belt tension gauge to set the belt tension by following these steps:
NOTE: Always install a matched set when installing new belts.
1. Turn the engine belt drive adjustment bolts until the belt is fairly tight.
Engine belt drive
adjustment bolts
Figure 4.3
General Maintenance • Belt Tension
4.8
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