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Belt tension adjustment (if required):
Using a wrench or impact gun, turn the motor base adjusting screw (Figure 7) clockwise to tension the belt or
o
counterclockwise to relieve belt tension. During adjustment of the belt tension, rotate the drives several times by
hand to evenly distribute the tension throughout the belt.
Motor Adjusting Screw
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Drive alignment check and adjustment:
Place a straight edge across the driver and the driven sheaves as shown in Figure 8.
o
The straight edge should contact all four points as shown in Figure 8 indicating that the drives are properly
o
aligned.
There should be no more than 1/16" deviation from the four points of contact.
o
In case of realignment, loosen the driver sheave, and align it with the driven sheave. Allow 1/4" for draw-up as
o
the bushing screws are retightened.
Vertex™ Evaporative Condenser Operation & Maintenance Manual – Component Maintenance Procedures
Figure 7. Motor Adjusting Screw
Figure 8. Drive Alignment
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