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Snow Blower Maintenance

Sunday, March 7th, 2010

A couple of weeks ago we had a ton of snow fall over a couple of days. While I was using the snow blower on the driveway one side of the auger broke and wouldn't spin. I found out there was a bolt through the driveshaft on that side fixing it to the auger and that bolt had sheared off due to how heavy the snow was. I did a temporary fix of sticking a piece of roundbar through the hole and bending it to stay there which allowed me to finish the driveway, but I needed to do a proper fix.

snow blower auger

snow blower hack

Once it warmed up a little I took a closer look and found that there is a bolt connecting the auger to the driveshaft of both sides. I was under the impression this was a bad fix done by the previous owner, but I guess that's just how this blower was setup.

I ended up stealing a couple 2"x1/4" bolts from work guessing they were the right size. They were! Hopefully this will hold up more than the piece of roundbar.

snow blower fix

I also took this opportunity to grease everything. There are 5 or 6 zerk connectors all over the business end of the blower and I put as much grease in as I could. In the Spring I'm going to change the oil and look closer at everything before I put it away for the rest of the year.

Comments (4) Subscribe

#1 - Mar 10, 2010 at 12:04 PM
The reason that "bolt" broke is that it is intended to when the load becomes too much for the auger. It's called a shear pin, and it does just that. When there is too much load placed on the auger, it shears, instead of the gears in the gearbox. I'd say take those bolts out, go down to a good hardware or power equipment store and ask them for two new shear pins. Maybe pick up a couple extra in case it happens again during a heavy snow.
#2 - Mar 11, 2010 at 5:49 AM
Well that makes sense! I suppose I should do that...
#3 - Mar 11, 2010 at 6:22 AM
Yeah, ask me how I know about those...I'll give you a hint, it has to do with my father's snow-blower, and a grill cover that I had removed and let get covered by snow...
#4 - Mar 11, 2010 at 6:46 AM
Haha, suck! I hit a coiled up garden hose once, but luckily it was soft enough to just get shredded. It scared the hell out of me though...

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