Oliver Packaging & Equipment Company
3236 Wilson Drive NW, Walker, MI 49534
(800) 253-3893
747-N BREAD SLICER
0747S20007
6-11
WARNING
ALWAYS DISCONNECT THE SLICER FROM THE POWER SUPPLY BEFORE
ATTEMPTING ANY TYPE OF MAINTENANCE TASK.
CAUTION
OVER-TIGHTENING THE DRIVE BELT MAY
CAUSE BEARING OR MOTOR FAILURE.
Replacing and Tightening the Drive Belt
Belt inspection: On the front of the slicer remove the four knobs and remove outfeed
covers and bagging scoop. Check the belt for proper tension and excessive wear. If the
belt deflects more than approximately 1/2 inch in the center of the span between pulleys
when pressing it, it needs tightening. If the belt appears worn replace it.
CAUTION
DO NOT REMOVE THE MOTOR PLATE NUTS COMPLETELY.
Tightening the belt: On the rear of the slicer remove the 6 screws attaching the electrical
panel cover. Use a 1/2” wrench loosen (but do not remove) the four nuts which secure
the motor mounting plate to the machine located on the back panel of the machine.
Allow the weight of the motor to tension the belt, then adjust the motor position to
straighten it (if it tilts) and re-tighten the nuts securely. Re-check the belt tension to
make sure it deflects approximately 3/8 inch. If it does not, repeat the process, adjusting
the motor position until the belt deflection is between 1/2 inch to 3/8 inch.
Replacing the belt: On the front of the slicer remove the four knobs and remove outfeed
covers and bagging scoop. On the rear of the slicer remove the 6 screws attaching the
electrical panel cover. Use a 1/2” wrench to loosen (but do not remove) the four nuts
which secure the motor mounting plate to the machine located on the back panel
beneath the removed electrical panel cover. From the back of the slicer, lift the motor
slightly to loosen the belt and pull the belt to the side and turn the pulley to work the belt
out of the larger pulley groove and off the pulley. From the front of the slicer, use a 9/16”
wrench to remove the two bolts attaching the connecting rod to the rocker assembly to
allow the belt to be removed from the slicer (see illustration, next page). Install the new
belt by reversing the above procedure. Use care to keep the plastic connecting rod as
straight as possible when re-attaching it and use the belt tightening procedure to tension
the belt properly. Re-check all the fasteners for tightness and replace the covers.