I have replaced the auger belt and adjusted the tension on the belt. This did not fix the problem. The engine is solid, starts on first pull, but the auger won't turn. I don't know now if it is the shear pin or the pulley under the engine.
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Re: auger on my snow blower won't turn.
First take a look at the shear pins they will be located on the augers going thru the auger and auger shaft, if they look ok then you need to take the belt off, with the belt off try to turn the im peller by hand. If the impeller does not turn then you need to look to see if something is stuck in the impeller or in the auger. If nothing is stuck in between anything then I would have to say it's going to be the gear box. If the impeller turns then look to see if the auger is turning also while turning the impeller. If the auger doesn't turn then it's probably the gear box. If it does turn then you have an issue at the pulleys
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Either two things come to mind, first I would check the shear pins. When a shear pin is broken, the auger turns but stops as soon as it hits a load (snow). The shaft is turning, but there's no mechanical connection between the shaft and the auger.
The second thing is the belt either needs adjusting or replaced. Belt adjustments should be checked before every winter and are simple to preform. When checking the drive and auger belts, look for glazed running surfaces, and cracking. Either sign means the belt(s) need replacing. Also if the belt(s) have streched beyond their normal adjustment.
Here's some silly questions: Did you put the belt on the correct side of the Tensioner?
Is it the correct sized belt?
Is there a spring on the cable for the auger that can be lifted up the cable to expose the adjustment nut ?
Check to see if the shear pins are broken off if so remove any fragments and replace. if not..With the engine off, try moving the auger with the handle engaged (you may need to have someone hold the handle while you wiggle the auger. If the auger spins freely without moving the belt mechanism you have either a shear pin issue or shaft breakage if it will not move or moves with great difficulty work your way back through the machine looking for the obstruction or damage. If the auger moves freely and the belt pulleys etc. move with it you likely need to adjust/ replace the tensioner, control handle or belt.
Check the auger shear pins replace if necessary with correct parts(not regular bolts). If auger and the impeller are not turning your cable is out of adjustment. If only the auger doesn't turn, and the shear pins are ok then the brass/bronze gear has shredded which is why proper shear pins must be used. Donyboy73 on youtube show how to replace that gear on an older but similar MTD affiliated blower.
On the handle end (usually) of the cable is a curved metal connector. Attached to the connector is a threaded rod with a nut. Attach a pair of pliers to the threaded cylinder that the threaded rod goes into. Loosen the nut. Turn the threaded cylinder into the threaded rod to tighten or out to loosen. When you have the correct adjustment, tighten the nut back down onto the cylinder. To be correctly adjusted, pull the cover off the auger belt and push down on the handle. The spring attached to the cable at the pulley end should stretch out when the handle is fully depressed. Spring tension keeps the belt tight.
The most common cause of this is the drive belt is worn.
If you remove the cover (usually plastic) in the middle of the snow thrower and look at the belts.
Your operator's manual will show you how to remove the cover and check/change the belts.
The belt closest to the blower assembly drives the auger/blower and the belt closest to the engine drives the transmission.
With the engine not running, have someone depress the drive lever and check the blower belt.
You should only be able to depress the long side 1/2 inch or less. More than that the belt has stretched and needs to be replaced.
On some older blowers you can adjust the tension pulley, but most made in the last 15 years, you can't.
The belt may be frayed on the edges or glazed causing it to slip (it is shiny on the sides of the belt) It may be torn and broke completely.
You can get parts for you Craftsman and most Husqvarana, MTD made models through searspartsdirect.com. You can also get parts through jackssmallengines.com or your local dealer.
If you are unfamiliar with repairing machines take it to your local dealer. They will have a technician troubleshoot and repair the unit.
Feel free to ask any other questions to troubleshoot this problem farther. I know Snow Blowers. Please remember to rate this answer!
The most common cause of this is the drive belt is worn. If you remove the cover in the middle of the snow thrower and look at the belt farthest from the motor. This is the auger/blower drive belt. With the engine not running, have someone depress the auger lever and check the belt. You should only be able to depress the long side 1/2 inch or less. More than that the belt has stretched and needs to be replaced. On some older blowers you can adjust the tension pulley, but most made in the last 15 years, you can't. I didn't see what make and model this blower was but: If this is a craftsman you can get parts through searspartsdirect.com. With other makes you can get parts through jackssmallengines.com Feel free to ask any other questions. I know Craftsman Snow Blowers. Please remember to rate this answer!
On one side of your machine you will find a cover that you can remove, the belt for the auger is in there. From what I can see there is no adjustment. Check to see how the belt looks.If it's chewed up it will need to be replaced.If you remove the belt try to turn the impeler to see if it turns freely, if it doesn't then check to see if there is something wedged. if nothing is wedged and the belt is off and it still don't turn by hand it could posibly be a bad bearing.if it does turn by hand. Also check the belt pulleies to see if they are ok, the only pulley that will sshould spin freely is the idler pulley, the one on the engine shaft should spin the moter so make sure you pull the spark plug wire off to check that one, and the auger pulley should spin with the auger.