Rayco RG165T-R Operator, Service, Maintenance Manual page 51

Cutting Wheel PolyBelt - Check
Tension
The cutting wheel is driven by a low maintenance positive drive
belt. To prolong belt life, proper tension must be maintained.
A loose belt will cause excessive cutting wheel slippage
and belt failure. A belt that is too tight can cause hydraulic
motor bearing failure.
When the belt is too loose
1. Loosen the hydraulic motor bracket slide bolt (2) and
both motor pivot shaft clamp bolts (7) enough to allow
the hydraulic motor (6) to pivot freely.
2. Loosen the lock nut (3) on the adjusting screw (4).
3. Pivoting the hydraulic motor (6) away from the cutting
wheel will tighten the belt. Turn the adjusting nut (5)
clockwise (viewed from ground), pivoting the hydraulic
motor away from the cutting wheel.
NOTICE
When checking belt tension, the cutting wheel must
be free to turn. Therefore, check the tension when
the cutting boom is locked in the raised position,
rather than when the cutting wheel is resting on
the ground.
4. Check the tension once again, and continue tightening
the belt and re-checking as necessary, until properly
tensioned.
5. Retighten the lock nut (3), the hydraulic motor bracket
slide bolt (2) and both motor pivot shaft clamp bolts (7).
6. Remount belt guard cover and bolts. Tighten all bolts.
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RG165T-R Operator · Service · Maintenance
7
When the belt is too tight
1. Loosen the hydraulic motor bracket slide bolt 2) and
both motor pivot shaft clamp bolts (7) enough to allow
the hydraulic motor (6) to pivot freely.
2. Loosen the lock nut (3) on the adjusting screw (4).
3. Pivoting the hydraulic motor (6) towards the cutting
wheel will allow the belt to loosen. Turn the adjusting
nut (5) counterclockwise (viewed from ground), allowing
the hydraulic motor to pivot towards the cutting wheel.
4. Check the tension once again, and continue loosening
the belt and re-checking as necessary, until properly
tensioned.
5. Retighten the lock nut (3), the hydraulic motor bracket
slide bolt (2) and both motor pivot shaft clamp bolts (7).
6. Remount belt guard cover and bolts. Tighten all bolts.
Maintenance
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