A shear pin is a device meant to enable the desired result to occur after a certain force that is predetermined is applied. A shear pin could either work as a conditional operator that doesn’t allow mechanical devices to function without the correct amount of force or merely as a safeguard meant to sacrifice itself in order to shield other mechanical parts. A shear pin functions as a connector from the shaft to the auger. A few common items that could pose a problem include – A frozen newspaper thrown on the driveway during the winter A lawn ornament such as a garden gnome that has blown into the walkway A children’s toy accidentally forgotten in the backyard A dog’s leash A package delivered on the doorstep If not for the shear pin , the augur shaft or gear case could be extensively damaged. It may not even be possible to repair the damage without professional help. With the fail-safe design provided by the shear pin, it is possible to replace ...