Mtd auger belt slipping off pulley - Snowblower Forum : Snow Blower Forums
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post #1 of 14 Old 02-16-2018, 06:01 AM Thread Starter
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Mtd auger belt slipping off pulley

I have a MTD 31BH763G401 and on the auger belt it keeps popping off. The second belt closes to the engine will not stay on the pulley. I tried a few thing but nothing seemd to be working. Both belts were new but now a little chewed up because they kept falling off. On the bottom of the belts I even added a small piece of metal extending it to keep the belt on.

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post #2 of 14 Old 02-16-2018, 06:23 AM
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Maybe the picture is a bit distorted; but it would appear that the Idler Pulley for the Drive Belt is out of alignment; how is its Bearing ?
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post #3 of 14 Old 02-16-2018, 06:29 AM
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Are all the pulleys lined up with each other?

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post #4 of 14 Old 02-16-2018, 06:57 AM
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What belt # do you got? How is the belt cover? If its worn where the belts hit it the belts will keep turning when they're not engaged. Also check for a loose motor, basket bolts or impeller bearing. Also check the pulleys for junk in the grooves or if they're bent anywhere.

Last edited by 351beno; 02-16-2018 at 07:05 AM.
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post #5 of 14 Old 02-16-2018, 07:47 AM Thread Starter
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Quote:
Originally Posted by Vermont007 View Post
Maybe the picture is a bit distorted; but it would appear that the Idler Pulley for the Drive Belt is out of alignment; how is its Bearing ?
Yea that's an old picture I did fix the drive pull I had it backwards in back of the belt instead of behind it

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post #6 of 14 Old 02-16-2018, 07:48 AM Thread Starter
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Are all the pulleys lined up with each other?
Everything seems aligned

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post #7 of 14 Old 02-16-2018, 07:54 AM Thread Starter
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Originally Posted by 351beno View Post
What belt # do you got? How is the belt cover? If its worn where the belts hit it the belts will keep turning when they're not engaged. Also check for a loose motor, basket bolts or impeller bearing. Also check the pulleys for junk in the grooves or if they're bent anywhere.
MTD 954-0430B that's the number I got off partstree.com it has a diagram also there is a plastic cover that goes over the belts and there are groves in the cover where the belt is scrapping

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post #8 of 14 Old 02-16-2018, 08:07 AM
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Good that's the right belts. Do you have the cover on when the belt falls off? I would make sure the augers are not turning with the belts disengaged and the cover on. But if they are grooves cut into the plastic its time to change it. The cover works as a belt guide to hold the belts in the right spot so anywhere can cause problems.
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post #9 of 14 Old 02-16-2018, 08:08 AM
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I hate it when MTD belts fall off the pulley.

Usually, there is a retainer up top to keep the belt from jumping the engine pulley when the auger is disengaged.

I donít see any such thing in the pictures, so I wonder if it is missing?

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post #10 of 14 Old 02-16-2018, 08:09 AM
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Quote:
Originally Posted by tpenfield View Post
I hate it when MTD belts fall off the pulley.

Usually, there is a retainer up top to keep the belt from jumping the engine pulley when the auger is disengaged.

I donít see any such thing in the pictures, so I wonder if it is missing?
The cover is the belt guide.
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