Question about Stairmaster Exercise & Fitness
Posted by Anonymous on
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Posted on Jan 02, 2017
http://support.nautilus.com/support/stairmaster.jsp?lid=StairMaster you can download and view all manuals here. If by drive sprocket you mean the hub that both step chains go over.....replace the entire hub. faster easier and less hassle. cost difference is about 40 dollars.
Posted on Sep 01, 2009
i have the stairmaster 4000pt which was bought new in 2003. in 2007, i started experiencing the same problem, the right pedal would sometime slip and fall to the floor. i called the local fitness store and they came and replaced the hub assembly and that resolved the problem until now. The left pedal is now slipping.
Posted on Dec 09, 2009
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
SOURCE: My Stairmaster 4000 PT pedals
have diode on the alternator checked , check all wiring connections to be tight, is the battery ok (6 volts ) and last check the motor control board for damage and/or electrical burn
Posted on Feb 03, 2011
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