Procedure 4.2 - Adjusting Drive Belt Tension - Precor 9.31 Manual

Procedure 4.2 - Adjusting Drive Belt Tension

1. Set the treadmill circuit breaker in the "off" position and unplug the line cord from the wall
outlet.
2. Remove the motor cover.
3. Place the drive belt tension gauge on the drive belt as shown in Diagram 4.2.
Diagram 4.2 - Drive Belt Tension Gauge
4. The gauge should read approximately 75 inch/pounds. The drive belt tension is acceptable
if it is in the range of 60 to 90 inch-pounds.
5. If the drive belt tension is less than 60 or greater than 90 inch/pounds, slightly loosen the
four drive motor mounting bolts. The drive motor mounts on slotted holes allowing the drive
motor to be move forward or rearward. Move the drive motor forward or rearwards, as
required, until the belt gauge reads approximately 75 inch/pounds and tighten the four drive
motor mounting bolts. See Diagram 4.3. Momentarily remove the drive belt tension gauge
from the drive belt. Replace the drive belt tension gauge on the drive belt and re-adjust the
drive belt tension, if necessary. Torque the four drive motor mounting bolts to 180 inch
pounds.
9.31, 9.33, 9.35 Treadmill
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