Question about Stairmaster 4400 PT Stair Stepper

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The chain slips when using the machine - both sides.

When the chain slips there is a loud noise, possibly indicating the chain has slipped and then caught again.

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This could be the hub assembly slipping I would replace this assembly and the pedal chains call National Gym Supply @ 800-496-7278 and get pricing for the hub assembly and step chain ( L & R )

Posted on Jun 01, 2010

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The chain feels like it is slipping and a clunking noise when it slips.


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1 Answer

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Stairmaster freeclimber 4400pt how to fix slipping chain. When using the machine the chain slips intermittently on both sides. Problem was infrequent in the beginning but getting worse all the time with...


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I was driving the car, then it made a loud noise the whole motor was shaking. then would not turn on


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1 Answer

Slipping


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