auger belt tension - Snowblower Forum : Snow Blower Forums
 
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post #1 of 10 Old 02-21-2018, 06:01 PM Thread Starter
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auger belt tension

Hi, I have a MTD 317E640F000 snow blower and I just replaced the two auger belts. However, when I engage the augers, only one of the two belts has tension, the other is very loose. I have seen some auger pulleys with slots for adjustment, but this one looks like all it has is nuts on either side and both of the pulleys do not appear to be independent. The manual gives the belt P/N of OEM-754-0430 (QTY 2). I would post a picture but do not see attachment for upload here.
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post #2 of 10 Old 02-21-2018, 09:27 PM
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The tension

Last edited by jtclays; 03-13-2018 at 05:23 PM.
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post #3 of 10 Old 02-24-2018, 12:41 AM
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they are supposedly sold in pairs so that they are matched. If you have a 5 hp it uses only one of those belts but you have to buy two.
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post #4 of 10 Old 02-26-2018, 09:45 PM Thread Starter
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Thanks, tension on the first belt is just fine. I bought two identical belts, not in the same package and not from a box store. Unless the belt is out of spec it should be identical or at least not this far different in size. It is also sitting in the pulley fine. NOt sure what is going on but I'll take another good look.
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post #5 of 10 Old 02-26-2018, 09:48 PM
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Garage
Same manufacturer for both belts? Belt lengths can change between manufacturers though the belt number is the same.

1986 Ariens ST522, 5hp, 22"
1995 Murray Craftsman 10hp, 29" w. 12" impeller
A 1983 Real John Deere 10hp, 32" w. 12" impeller, 16" auger, 20" high front, cast iron gear box, chains
Noma 9hp, 27" w. 12" impeller
Noma 5hp, 24" w. 12" impeller, 20" high front
Gravely Convertible, 12hp Kohler cast iron, 26" width, 600 lbs of cast iron & steel, 2 speed impeller, 4 ground speeds
Dynamark 8hp, 26", 12" impeller, for sale
Several other 5hp, 8hp, several 2 cycle, all for sale
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post #6 of 10 Old 03-13-2018, 09:20 PM Thread Starter
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Yes same manufacturer. I replaced the belts because one of them was loose, but it appears to not be the belts because the new one is loose as well.
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post #7 of 10 Old 03-20-2018, 11:55 PM
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did you get this fixed? did you measure both belts? reverse positions? check that one wasn't on pulley due to pulley brake?
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post #8 of 10 Old 03-21-2018, 10:16 AM
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Originally Posted by 38racing View Post
did you get this fixed? did you measure both belts? reverse positions? check that one wasn't on pulley due to pulley brake?
I think this is a great suggestion to switch the belts around and see if one is looser then. While the belts are off, measure both belts to see if there is a difference. A 1/4" difference between belts is a big difference.

1986 Ariens ST522, 5hp, 22"
1995 Murray Craftsman 10hp, 29" w. 12" impeller
A 1983 Real John Deere 10hp, 32" w. 12" impeller, 16" auger, 20" high front, cast iron gear box, chains
Noma 9hp, 27" w. 12" impeller
Noma 5hp, 24" w. 12" impeller, 20" high front
Gravely Convertible, 12hp Kohler cast iron, 26" width, 600 lbs of cast iron & steel, 2 speed impeller, 4 ground speeds
Dynamark 8hp, 26", 12" impeller, for sale
Several other 5hp, 8hp, several 2 cycle, all for sale
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post #9 of 10 Old 03-21-2018, 11:10 AM
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When belts are supposed to be used together, you ask for a set of matched belts. They are cut from the belt tube next to each other. I used to be able to buy them from the automotive store in town , but they and everyone else that knew something about parts are long out of business. Auto Zone and such have put them all out of business......
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post #10 of 10 Old 03-23-2018, 09:14 PM
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I was just reviewing my belts and I found 2 mtd auger belts 754-0430 that were from two different purchases of matched sets, one Oregon and one PIX and they certainly look different. I used one from the most recent matched set on a 5hp needing only one belt and I am wondering if I should pull it back off and keep with it's mate and use the other single instead. Of course I would have done that if I'd realized I had that single in the first place.
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