Question about Precor C956i Treadmills with HR / WholeSale

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Sounds like airplane taking off

On it today...set at 6.0...loud. stopped suddendly, then started back up again. the tread looks like it is off .5" from where it was running (by the marks in the metal bar) and i pulled it back in place, but quickly went off track again.

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  • John Mazmanian
    John Mazmanian May 16, 2010

    How long have you had this treadmill and have you or a service company done any maintenance on the unit.

  • jpcl May 16, 2010

    6 years. precor M9.27. No maintenance at all.



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  • Precor Master
  • 832 Answers

1. You may have a worn belt and deck problem ( #1 problem on treadmills ). Test by the following procedure:
a) without the power on stand on the walking belt
b) push the beltsounds like airplane taking off - 2_bing.gif in the direction it normally turns
c) if the belt is very difficult to turn (on most treadmill) this means that you have high belt/deck friction.

You must physically inspect the belt and deck. The deck should be smooth. The belt should have aconsistent feel from side to side (a belt can be worn out without any sensory signs of a problem). If you feel deep grooves in the deck or uneven wear on the underside of the belt, part replacement is necessary. Continued use of your treadmill may damage expensive electrical components. If their is no signs of excessive wear then the next step is to lubricate the deck follow this procedure:

Before applying lubricant, the belt must have the tension reduced and cleaned deck. Loosen the tension roller by following the instructions in your owner’s manual. Do not loosen the bolts in the tension roller too far or the bolts will come out of the roller shaft. This step may not be necessary for your treadmill model or belt and deck condition.
Contaminants are the worst enemy of your belt and deck. Some treadmills may have an excessive accumulation of dirt and contaminants. If these are trapped during the belt lube process, significant damage will occur. Lift the belt and slide a moist towel between belt and deck, slide the towel the length of the unit to catch the contaminants do this a number of times inspect towel and need be use a fresh towel and repeat cleaning let dry then apply the lube in the center upper third of deck then start unit and walk on it @ 1-2mph for about 5 min. You may purchase the lube from National Gym Supply @ Part# TM001 or call them @ 1-800-496-7278 their on the west coast. At this point I believe your problem should be resolved if the above procedures have taken care of problem take a look at the next step, as mentioned the #1 cause of treadmill failure is lack of maintenance of the belt a

Posted on May 16, 2010


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