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Posted on Dec 27, 2010
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The pedal mechanism is loose when try to ride

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Anonymous

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  • Posted on Dec 28, 2010
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Can you be more specific? There can be several reasons for this. Pedal arms can be worn out, hub in fan can need overhauling. Does the chain move with the pedals? Are the pedal arms loose or the pedals themselves? Pedal hub could also need overhauling. If the overhauling seems to be the issue, best bet would be to take the machine to a local Bike shop, If you're pretty handy, and can do the repair yourself, give me more specific details and I can suggest better instructions on repair.
Mike

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  • danacoleman Dec 28, 2010

    it is where the pedal attaches inside (like an axel), the bushing has come undone - inside of a bolt - it is unthreaded. Not sure how to tighten it back on due to it being threaded on both sides - not sure should use a wrench - also not sure if have to attache to the actual pedal. more noticeable when i peddle backwards - becomes more unstable. Hope that helps

  • Anonymous Dec 29, 2010

    It's been a while since I've worked on this, Usually, when that mechanism comes loose, you can tighten it back up again on both sides and it should have a lock nut to secure it. But, it usually requires wrenches that you buy from a Schwinn dealer or a Bike shop. I am new to this sight, can you submit a close up picture to help me understand better? As I'm re-reading this, the threads may have been worn out due to use while being used. Let me investigate a little bit. I'll reply again in a day or so. I will let you know what I find out. I have an idea. I'll write back soon.

    Mike

  • Anonymous Dec 29, 2010

    Go to Krislynn.net click on Airdyne parts on the left. you need part: AD4 Cartridge w/ lock ring price from this site is 87.99. The part close up is number 50 in the diagram. Let me know if this is the assembly that is giving you the problem. If not, they should show you what parts you may need. Hope this helps you. Mike

  • chibooey Jan 31, 2011

    My problem is very similar on an Airdyne Evo, the lock ring loosens up but I cannot get the pedal arm off the shaft after removing the retaining bolt. Also I assume it is some sort of special spline tool to tighten down the retaining ring. Anyone know if those can be bought or how to remove the cam and pedal arm?

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Check that its not just the gear pedal either stuck on its pivot shaft due to corrosion, & that it is not just spinning round on the gear change shaft
If stuck in gear, try rocking the bike back & forward while moving the pedal up & down
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