Oliver 4065, Owner'S Manual, Page: 57 / 88

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Belt Tension Adjustment
Belt tension was calibrated at the factory, and it
should not require adjustments initially. After a
long period of use, the poly-v belt may stretch
and slip on the pulleys. When that happens, the
belt needs to be tightened.
1. Disconnect the saw from the power source.
2. Remove the motor access panel.
3. Check the belt tension by pinching the belt
together gently. The belt should deflect by
1/8 “- 1/4”.
4. If the belt is cracking or showing any sign of
damage, follow the instructions in “Belt
Replacement” in the next section instead.
5. If the belt is too loose, slightly loosen the
four motor mounting nuts so the motor can
be lowered by gravity. DO NOT remove the
nuts. If needed, use a rubber mallet to gently
tap on the motor mounting plate to lower
the motor and increase belt tension.
6. Tighten all four mounting nuts to secure the
motor.
7. Reinstall the motor access panel to complete
the process.
IMPORTANT
Do not over tension the belt, as it can
accelerate wear and tear of the belt and the
bearings.