Question about Bowflex Treadmill Series 7

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Rhythmic thumping noise with increased speed

Brand new treadmill, just set it up. When you increase the speed greater at 1.5mph, you hear a thumping noise towards the back of the treadmill, very rhythmic in sound, similar to sound of a heartbeat just louder. treadmill has been calibrated and passed, but sound remains and if you increase speed higher, sound remains just occurs more often but carries same rhythm.

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  • Anonymous Mar 18, 2014

    i have fitted a new belt to my treadmill and have lubed bearings as best i can and when at walking speed its fine but when increase speed it whines quiet loud

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The problem is the rear roller has a bad bearing and needs to be replaced

Posted on Mar 16, 2009

  • medalwinner Dec 13, 2010

    Not correct, they all make this sound (we have installed hundred's). The belt is brand new, just use the unit, by hour 50 it will be gone. Do NOT tighten the belt to reduce the noise, it will prematurely burn up the motor.

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Posted on Jan 02, 2017

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