Replacing The Drive Roller; Procedure - Precor Energy Series Service Manual

Replacing the Drive Roller

This procedure is to be used to replace a drive roller while maintaining the drive belt original
tension and the running belt original tension and tracking settings. Two running belt gauges,
Precor part number 20007-101, are required. It is important that this procedure be followed to
maintain correct drive belt and running belt tension. When tension is removed from the running
belt, the belt requires 24 hours for it to "relax". If tension is removed from the belt and then re-
tensioned without following this procedure or allowing a 24 hour relaxation period, the running belt
may be over tensioned. Over tensioning the belt will lead to premature running belt wear,
premature driver roller bearing failure and premature Take-up roller bearing failure.

Procedure

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. Once set the belt gauges cannot be disturbed or moved, doing so will invalidate the
tension settings and necessitate a 24 hour relaxation period before the running belt can be
re-tensioned.
3. Remove the end caps from the rear of treadmill to expose the Take-up roller mounting
bolts.
4. Remove the treadmill motor cover.
5. Loosen, but do not remove the Take-up roller mounting bolts. The bolts are being loosened
to remove tension from the running belt.
© 2014 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
45Page 45 of 54