Drive Belt Problems
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Thread: Drive Belt Problems

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    Drive Belt Problems

    I have a 212 with manual PTO and hydraulic lift...in case any of that matters for the problem I'm having. The belt that runs from the pulley on the rear end the the variable speed pulley keeps slipping off the rear end. I have replaced the pulley itself (the lip had a subtle bend on one spot), the tension pulley spring and the belt and the belt still won't stay on. I have no idea what else to look at. It is coming off the rear end pulley, not the one on the variable speed side of things. When the belt slipped off the first time, there was no catastrophic event or anything...just a little bit of vibration for a second, then a thunk where the belt slipped off. When I put everything back together it will run for maybe 50ft and then the same thing happens. What else is back there that could be causing this?

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    T-Mo's Avatar
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    First off, be sure you have the correct belt. Always buy your belts from John Deere - they are spec properly, including the width, angle of "V", as well as the length. Aftermarket belts usually won't last and will cause performance issues like you're having.

    Also be sure you have the belt routed correctly, and that all springs are correctly installed. Check the output shaft in your transmission for play, as well as ensuring there is nothing going on with the variater pulley and setup itself. If everything is installed correctly and everything's in good working order and you have the correct belt and pulleys, then it should not come off. It's been awhile since I've owned a 200 series, so it's possible I'm missing something that could be the cause.

    Oh, just remembered, readjust everything, including the variator. Always readjust after installing belts, either secondary (which is what you're dealing with) and primary, and it's recommended to install both belts new.
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    If the tensioner bearing or pivot is worn the belt will keep falling off.

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    jeepjeff's Avatar
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    If you can, try to remove the plastic plate that fits over your gear shift opening on the floor pan. It will allow you to see the 2ndary belt and tensioner in action. May give you an idea where to check next.

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