Precor Energy Series Service Manual page 29

3. Slowly rotate the drive motor flywheel while pressing the drive belt off of the drive roller pulley.
Continue until the drive belt "walks" completely off of the drive roller pulley.
4. Using a fine tip marker or scribe, place a mark on the right hand drive roller mounting bolt
directly in front of the drive roller shaft. The bolt is being marked so that the drive roller can be
returned to the exact same position. The use of a fine marking line allows for more accuracy
when the replacement drive roller is installed.
5. Remove both drive roller mounting bolts. Remove the drive roller from the treadmill.
6. Slide the replacement drive roller into running belt and into the drive belt. Hand start both drive
roller mounting bolts.
7. Tighten the left hand drive roller bolt fully. The left hand side of the drive roller should be as far
forward as possible.
8. Tighten the right hand drive roller bolt until the mark placed on it in step 6 aligns with the front
edge of the drive roller shaft. Steps 8 and 9 should place the drive roller into its original position
and should now be square to the treadmill frame.
9. Slowly rotate the drive motor flywheel while pressing the drive belt onto of the drive roller
pulley. Continue until the drive belt "walks" completely onto the drive roller pulley. Be sure that
the drive belt is fully onto and correctly aligned on the drive roller pulley.
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