Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Simplicity 42" MFG no 1691522 Snow Thrower
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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Theresamay
Joined: Nov 22, 2013
Points: 4
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Simplicity 42" MFG no 1691522 Snow Thrower
Original Message Nov 22, 2013 12:42 am |
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My belt broke, and I put the pulley back on and it broke another belt and the key, I called Simplicity, they said the pulley in the manual is on backwards. So I changed the pulley to be opposite the manual specs and am concerned as the Drive Shaft moves left and right, causing the pulley to rub up against the drive shaft housing, which in turn wore a groove in the pulley.. I looked closely under the Chain Guard and don't see any sort of bushing to go between the Drive shaft sprocket and the housing nor is there a spacer of any kind between where the pulley sets on the drive shaft. Seems the drive shaft moves back in forth in the housing causing the pulley to rub on the drive shaft housing. What am I missing here? I am a girl, but try my best at mechanical duties (even though I don't like it) Any suggestions would be appreciated!
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trouts2
Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328
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Re: Simplicity 42" MFG no 1691522 Snow Thrower
Reply #1 Nov 22, 2013 3:54 pm |
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The exploded view from partstree shows a clearance between the outside of the sprocket and side plate to be .81 inch plus/minus .06. It looks like that is set with the allen screw i.e. you would slide the sprocket on the shaft with the key in and out until you got the recommended clearance. You would then tighten the allen screw.
>>”the Drive Shaft moves left and right, causing the pulley to rub up against the drive shaft housing,” Not sure what the above is saying. Is the Drive Shaft above the auger/rake drive shaft? Is the “drive shaft housing” the snowblower housing? The drawing I’m looking at in partstree (http://www.partstree.com/parts/?lc=simplicity&mn=1691522+-+Snowthrower%2C+Single-Stage+%2C+42%22&dn=19367) calls the auger/rake part the rotor assembly. If all the parts on that assembly are on correctly there should be very little to no wiggle in the router. That is it may be 1/16 ?? or less. The rotor assembly fits into and rides on the flanges and bearings on each side. The right facing side with the sprocket has the side plate attached on the outside of the housing and the pulley sits on the far end. There should be no scraping on anything. The drawing shows the side plate on the outside of the snowblower housing and the flanges and bearings mounted to the outside of that. The sprocket pulley is mounted on the outside of that so the only way it could rub anything is to be too close to the side plate. The clearance between the side plate and pulley is .81inch which would be less than any play in the router shaft. No rubbing. If you’ve got the pulley and side plate clearance to spec and the shaft can wabble enough to have the pulley rub the side plate then the wiggle is too great. Something is not correct with the setup of the router assembly. Check the exploded view above and make sure all the parts are as shown. (Given what you mentioned about the pulley being shown reversed it should be obvious when you look at the pulley and side plate which way it goes.)
This message was modified Nov 22, 2013 by trouts2
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Theresamay
Joined: Nov 22, 2013
Points: 4
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Re: Simplicity 42" MFG no 1691522 Snow Thrower
Reply #2 Jan 31, 2015 10:59 pm |
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I was missing the washers nearest to the pulley, It only cost me 300 dollars to figure it out Now I have to take it apart again, cuz the shop that did it put the pulley on backwards and lost the bolts off the clamps that keep the drive shaft in line with the auger shaft! The set screw for the drive alignment is only on the Auger shaft not the drive shaft?
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Theresamay
Joined: Nov 22, 2013
Points: 4
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Re: Simplicity 42" MFG no 1691522 Snow Thrower
Reply #3 Jan 31, 2015 11:00 pm |
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Simplicity 2171248SM PULLEY! is the part JOY! Thanks for the post!
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Theresamay
Joined: Nov 22, 2013
Points: 4
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Re: Simplicity 42" MFG no 1691522 Snow Thrower
Reply #4 Feb 1, 2015 2:03 am |
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Fixed everything but the shaft near the pulley is hot hot hot
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trouts2
Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328
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Re: Simplicity 42" MFG no 1691522 Snow Thrower
Reply #6 Feb 2, 2015 6:52 am |
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