Patent No. 6,766,028 - OFI Testing Equipment, Inc.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ote.com 44
Maintenance
Main Shaft Bearing
Replacement
1. Remove the bearing guide. Follow steps 1 - 7 on page 40.
2. Loosen the motor with the appropriate Allen wrench. The four screws are
located around the base of the motor.
3. Gently slide the motor forward to loosen the chain, freeing it from the
sprocket.
4. With a small at-head screwdriver, remove the split ring from on top of the
main shaft bearing.
Without the split ring, the main shaft assembly will fall out of the main
housing body. Be sure to hold the main shaft assembly when you remove
the split ring so that it doesn’t drop.
5. Slide the main shaft assembly down out of the main housing body. The
upper bearing will stay inside the housing, but it can be easily removed
and replaced by lifting it up out of its recess.
Main Shaft
Chain
Main
Housing
Main Shaft
Bearing
(Upper)
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