Should Shear Bolts Be Tight?

Oh yeah, a shear bolt should stay fairly tight. If it's coming loose, even with a lock nut, just double nut it. It will not loosen. If it is coming loose it's usually because of #1, which is allowing it to work back and forth in the hole.

Why does my shear bolt keep breaking?

NO, The fact that the shear bolt is broken is an indication that the impeller or auger has impacted against something that the machine is not designed or capable of processing. The shear bolts are considered to be a sacrificial part to prevent greater damge from occuring to the gearbox or shafts of the unit.

What is the purpose of a shear bolt?

What is the purpose of shear bolts? Shear bolts serve two purposes: Shear bolts fasten the auger to the auger gearbox shafts. Shear bolts prevent damage to the auger and/or gearbox in the event the auger contacts a solid object during snow removal.