Precor 9.33 Manual page 48

9.33, 9.35 240V Treadmill
Procedure 6.11 - Take Up Roller Replacement
This procedure is to be used to replace a take up roller while maintaining the running belt's
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 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.
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 can not 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. If applicable, remove the finger guard located in front of take up roller.
5. Remove both take up roller mounting bolts. The belt gauge readings will decrease as the
take up roller mounting bolts are removed. Remove the take up roller from the treadmill.
Take Up Roller
Mounting Bolt
Page 48