Oliver 4275C, Owner'S Manual

Page: 47 / 70

4275C Jointer OLIVERMACHINERY.NET 47 | Page
Adjust Belt Tension
CAUTION
Belt and pulleys may be hot after operations. Allow components to cool before
servicing.
1. Disconnect the jointer from the power
source!!
2. Remove the motor access panel and the belt
cover.
3. Apply moderate pressure on the V-belt
midway between the two pulleys. Properly
tensioned
V-belt should deflect by
approximately 1/4 “.
4. If V-belt tension needs to be adjusted,
loosen both lower motor mounting bolts
(#1). Lower the motor until proper belt
tension is reached. Secure the motor
mounting plate by tightening both the upper
mounting bolts (#2) and the lower mounting
bolts.
5. If V-belts need replacement, push the belt
towards the motor to walk the belt out from
the motor pulley.
If the belt is too tight to remove, temporarily
loosen the upper mounting bolts (#2). Raise
the motor to loosen the belt, and remove it
from the pulleys.
6. Install a new belt and make sure the belts sit
into the grooves of pulleys.
7. Adjust belt tension and re-secure motor as
needed.
8. Replace belt cover and motor access panel
when maintenance completes.