Running Belt Tension Adjustment - Precor Energy Series Service Manual

Plug the line cord into the wall outlet and set the treadmill circuit breaker in the "ON" position.
7.
8. Check treadmill operation.

Running Belt Tension Adjustment

This procedure needs to be accomplished any time the Drive roller or Take up roller are
removed or replaced.
1. Place two running belt gauges on each side of the running belt, being sure that the gauges are
not across a belt seam. Set the gauges to the 3% mark as shown in the Illustration below
2. Alternate tightening the two take up roller mounting bolts, in order to tighten both ends evenly,
until both running belt gauges again read exactly 3.5% on consumer treadmills or 3.55% on
commercial treadmills.
3. When both gauges again read 3.5 or 3.55% the belt is at its original tension. It will now be
necessary to touch up the running belt tracking
4. Remove both belt gauges from the running belt.
5. Start the treadmill and operate it at 2 mph. Observe the running belt. If the belt drifts away from
its centered position re-track it by adjusting the take up roller mounting bolts.
6. If the belt drifts to the right, slowly turn the right hand mounting bolt clockwise until the drifting
stops. If the belt drifts to the left, slowly turn the right hand mounting bolt counter-clockwise until
the drifting stops. Only a very small adjustment should be required, 1/8 to 1/4 turn.
7. Increase the treadmill speed to 4 mph. if the belt drifts away from center, touch up the tracking
as described above.
8. Increase the treadmill speed to 8 mph., if the belt drifts away from center, track it as described
above
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