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40" Snow Thrower

1540 Views 6 Replies 3 Participants Last post by  The_Hun
Hey guys, quick question, is there really a need for these shear pins? I mean can we not weld the shaft solid so we don't need these shear pins? They seem to break fairly easily...
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I'll admit I have welded some augers on walk behind snowblowers and gotten away with it,but it will usually result in some other part breaking instead if something un-chewable gets in the auger,probably a more expensive and harder to change part,too! 5 hp blowers lacked enough power to destroy themselves,but a 10HP or more tractor might just have enough ooomph to make a mess of the auger,drive setup,etc..usually the belt or chain will bust first,but not always,not before causing a lot of wreckage!..

I have used brass or bronze bolts in place of genuine shear bolts when none were to be found in the hardware stores after several snowfalls in rapid succession with good results..if you use grade 2 steel bolts you'll stand a better chance of having them break before anything else does (other than the belt or chain) probably..I have ground a groove in grade 2 bolts like real shear pins have and they snapped before anything else did,yet didn't break as easily as a shear pin..we get slushy snow here often and its **** on'll spend more time replacing shear pins than blowing with it it seems sometimes--(that and unclogging the darn chute!).

The local DPW crew here uses large cotter pins,rather than shear pins, in the older blowers they use to clear the school sidewalks and other town property,and the guy I know who does it says he has few problems with them shearing,and when they do its easier to change them,no having to use a punch and hammer to get them out,and so far he only had one auger get muckled when a 6" steel inspection cover over an underround valve got scooped into the auger!..
Well my tractor is 26hp. LOL I haven't used my snowthrower yet since I just got it. I was just asking because I have heard its a common problem with the blowers. I hope mine don't break as we get -35 Celsius here in Manitoba Canada and replacing those pins in that weather would not be fun..
I broke one shear pin last winter on my Berco and I had to eat the nylon door of my storage tent to do that. We had quite a few storms this winter too. I have gone years without breaking a pin on my walk-behind. The key is to do a thorough inspection of your drive for any debris just before the first storm and have your skid plates set high for the first month of winter or so, especially if you have a gravel drive. Once the ice pack forms I lower the skids down to 1/4" then raise them back up in about mid-March.

If this is your first time with the blower, or even if isn't, this sticky is good reading:
Hey, mine is a Berco as well. I have a asphalt driveway, so you think I should even worry about these pins?
Hey, mine is a Berco as well. I have a asphalt driveway, so you think I should even worry about these pins?
I would have some on hand just in case. A spare set of belts too. When you need them is not the time to find out you don't have them. The Berco pins can be hard to find. My local guy doesn't carry them. I get them from this guy.

You can get the pins in a 10 pack. If your 40" is the compact model I think there is a nylon pin in the drive train too.
Well, the guy I bought the snowblower from gave me a bag full of the pins. So I am not worried about running out any time soon, but maybe I will pick up a spare belt..
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