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Snowblower Not Throwing Snow

The part(s) or condition(s) listed below for the symptom Snowblower not throwing snow are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Snowblower not throwing snow

For the most accurate results, enter your model number.


Cause 1Shear Bolt and Nut

The shear bolt is a metal bolt that slides through the auger axle sleeve, locking the sleeve in place with the auger drive axle. Shear bolts are designed to break in half if the auger hits a rock or chunk of ice to prevent damage to the engine. If the shear bolt breaks, the auger won’t be able to turn. Inspect the shear bolt to determine if it is broken. If the shear bolt is broken, replace it.

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Cause 2Shear Pin

The shear pin is a metal pin that slides through the auger axle sleeve, locking the sleeve in place with the auger drive axle. Shear pins are designed to break in half if the auger hits a rock or chunk of ice to prevent damage to the engine. If the shear pin breaks, the auger won’t be able to turn. Inspect the shear pin to determine if it is broken. If the shear pin is broken, replace it.

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Cause 3Shear Bolt

The shear bolt is a metal bolt that slides through the auger axle sleeve, locking the sleeve in place with the auger drive axle. Shear bolts are designed to break in half if the auger hits a rock or chunk of ice to prevent damage to the engine. If the shear bolt breaks, the auger won’t be able to turn. Inspect the shear bolt to determine if it is broken. If the shear bolt is broken, replace it.

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Cause 4Auger Assembly

First, check the shear pins for damage. If the shear pins are broken or worn out, replace them. Next, check the auger blades. If the auger blades are bent or damaged, replace them. If the entire auger assembly is worn out, replace the auger assembly.

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Cause 5Auger Blade

The auger blade or blades collect the snow and throw it out of the chute. If the blades get worn they will not effectively throw the snow. Visually inspect the blades for excessive wear and replace if needed.

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Cause 6Cogged Belt

Inspect the belt to see if it is broken, stretched out, or out of place. If the cogged belt is broken or stretched out, replace it.

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Cause 7V-Belt

The V-belt rotates the drive pulleys to drive the lawn mower wheels. If the V-belt is worn out or broken, the lawn mower wheels won’t turn. Inspect the V-belt for damage. If the V-belt is defective, replace it.

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Cause 8Impeller

The impeller propels the snow through the chute. If the impeller is not jammed or broken, the snowblower won’t blow the snow. If the impeller is broken, replace it.

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