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post #1 of 15 Old 01-08-2018, 07:01 PM Thread Starter
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Auger not turning

Hey everyone.

I received a hand me down craftsman snow thrower. Model 536886440

While trying to plow the driveway with this latest snowfall the front auger stopped spinning but the impeller still spins.

Shear bolts are still in tact

My guess is the worm gear on the shaft has worn out however I would like to ask you guys if you had any other guesses

Also if anyone knows of a video to replace shaft.
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post #2 of 15 Old 01-08-2018, 07:06 PM
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if shear pins are indeed intact then you are correct sir, gear in gear box broken/stripped, should be hearing some kind of harsh noise, normally not a cheap part or parts depending what it needs or how much destruction occurred

Bought a dead but now fixed 1980ish craftsman II 10/28....ITS ONE HEAVY BEAST

MY VIDS ON FIXIN HER UP

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Last edited by vinnycom; 01-08-2018 at 07:09 PM.
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post #3 of 15 Old 01-08-2018, 07:09 PM
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Is the impeller shaft turning? There's a roll pin that goes through the impeller and impeller shaft. If it is turning then it's in the gearbox. Sorry. However there is a woodruff key in the worm gear, they are very strong, doubt if it's that.

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 #4 of 15 Old 01-08-2018, 07:13 PM Thread Starter
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Quote:
Originally Posted by JLawrence08648 View Post
Is the impeller shaft turning? There's a pin that goes through the impeller and impeller shaft. If it is turning then it's in the gearbox. Sorry.
Impeller still spins.

I am not hearing any noises when the shaft spins.

At this point it may not be worth fixing.
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post #5 of 15 Old 01-08-2018, 07:14 PM
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take apart gear box to confirm, post some pics of her destruction

Bought a dead but now fixed 1980ish craftsman II 10/28....ITS ONE HEAVY BEAST

MY VIDS ON FIXIN HER UP

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post #6 of 15 Old 01-08-2018, 07:57 PM
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one good thing...

there are a lot of craftsman donor machines available for parts , cheap or free. especially in spring or summer.

"It Feels Like Beer O'Clock "
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post #7 of 15 Old 01-08-2018, 08:03 PM
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Quote:
Originally Posted by JKMich View Post
Impeller still spins.

I am not hearing any noises when the shaft spins.

At this point it may not be worth fixing.
$45 For the part.

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 #8 of 15 Old 01-08-2018, 08:18 PM
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Quote:
Originally Posted by JLawrence08648 View Post
Is the impeller shaft turning? There's a roll pin that goes through the impeller and impeller shaft. If it is turning then it's in the gearbox. Sorry. However there is a woodruff key in the worm gear, they are very strong, doubt if it's that.
I bought an MTD 640F, its augers wouldn't spin. In my case I was lucky, and while the shear bolts were still in 1 piece (although bent), the woodruff key that aligns the worm gear to the shaft was, in fact, sheared off. $1 later, and I was back in business.

So I agree, it's worth opening up the auger gearbox to take a look. It might be something simple and cheap.

Ariens 1024 Pro
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post #9 of 15 Old 01-08-2018, 08:48 PM
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I mentioned it because it could happen. As we all know, sometimes you have to check everything. Start with the easiest or most likely and go from there.

Quote:
Originally Posted by RedOctobyr View Post
I bought an MTD 640F, its augers wouldn't spin. In my case I was lucky, and while the shear bolts were still in 1 piece (although bent), the woodruff key that aligns the worm gear to the shaft was, in fact, sheared off. $1 later, and I was back in business.

So I agree, it's worth opening up the auger gearbox to take a look. It might be something simple and cheap.

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 #10 of 15 Old 01-08-2018, 09:14 PM
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I have seen the woodruff key shear as well, well worth opening up and checking out. Note, I have also seen rolled pins shear ... Just open it up and see what is going on instead of guessing ....
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