Drive Belts
DRIVE BELT WARNINGS:
If a drive belt is damaged (cracked, breaking, torn etc), have it replaced.
Ensure that drive belt tension is maintained.
The machine uses 2 “V” profi le belts to rotate the blade shaft. The belts use friction against the
belt pulleys to provide drive. If the belts are adjusted incorrectly, or are worn, slippage may occur.
Slippage is usually noticeable by a “squealing” noise and/or slowing or stopping of the drum when
the machine is under load. The belts require maintenance/replacement when necessary.
Belt Tension Adjustment
To adjust belt tension:
1. Remove (rotate anti clockwise) the 8 bolts (A) securing the drive belt cover (B), and remove the
cover.
2. Loosen (rotate anti clockwise) the 4 engine mounting bolts (C) at the front and rear of the
engine. Do not remove the bolts.
3. Loosen (rotate anti clockwise) the 4 engine locating bolts (D) at the front and rear of the engine.
Do no remove the bolts. Depending on the direction that you want to move the engine (towards
the machine handle to increase belt tension), back off the bolts and lock nuts suffi ciently so the
engine can be moved.
4. Slide the engine either forward or backward. Adjust the engine position so that when you press
hard on a belt it should defl ect approximately one thickness of belt.
5. When the belt tension is correct, fi rmly tighten (rotate clockwise) the engine mounting bolts.
6. Screw in (rotate clockwise) the engine locating bolts until they make contact with the engine (do
not actually move the engine), then fi rmly tighten the lock nuts.
7. Check the belt tension again to confi rm correct tension, and re-adjust if required.
8. Re-install the belt cover and fi rmly tighten (rotate clockwise) all belt cover mounting bolts.
A
B
D
C
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