OD
V-BELT
32 SUPERMAX OWNER’S MANUAL
Fig. 37. Removing belt guard and transfer rod. Fig. 38. Removing main motor V-belt drive.
Step 2. Now repeat Step 1 on the right (inboard)
side of the conveyor. Compare the measurements
from side to side. If they are not equal, loosen one
of the brackets that hold the drive or driven roller
in place. Tip this bracket until the distance
between the drive or driven roller and the straight-
edge are equal from side to side, then tighten the
bracket.
REPLACING V-BELT
To change the V-belt on the SUPERMAX, first
unplug machine from the outlet. Remove two
screws in lower section of belt guard and loosen
the pinch bolt of the motor support casting. Raise
the motor and retighten the pinch bolt. The pro-
cedure is the same for single drum sanders except
that there is one driven pulley instead of two.
V-Belt Removal
1. Remove the lower outer belt cover by removing
the four 10-32 screws holding it in place (see Fig.
29 and 37). Remove the two 5/16" x 1/2" hex
head bolts holding it in place; pull the middle
cover to the left. Take the V-belt off the pulley
(Fig. 38).
2. Loosen the pinch bolt of the motor support
casting, raise the motor, and re-tighten pinch bolt.
3. Remove the miter gear from the right (inboard)
side of the transfer rod. Loosen the shaft collar on
the left (outboard) side of the rod, and pull the rod
back enough so the V-belt can be removed. Note
the routing of the old V-belt; now remove the old
V-belt and replace it with the new V-belt.
Machine Reassembly
1. To reassemble the unit after replacing the V-
belt, first place the transfer rod back through the
machine. Tighten the shaft collar. Reinstall the
miter gear on the transfer rod, making sure the set
screw is centered on the flat of the rod.
2. Adjust the tension on the V-belt by sliding the
motor down and then tightening the pinch bolt in
the motor support casting. Adjust so the belt
deflects about 1/2" between the pulleys when
pressed. Excessive tension can increase motor load
and decrease bearing life, while a loose belt can
reduce operating efficiency and shorten belt life.
3. Reinstall the outer and middle belt guard using
the two 5/16" x 1/2" hex head bolts and the four
10-32 screws.
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