Clear the auger and the housing of any snow that may be in the machine to help get a better view of the bolts. There should be no obstructions around the machine. Next, ensure that the snow blower is on a flat, clear surface. For added insurance, remove the spark plug.
Visually inspect the rotor to ensure that it has stopped spinning. First, shut off the motor and remove the key from the ignition.
This requires the user to exercise some basic safety precautions. Removing shear bolts entails working around the auger. The problematic shear bolts will usually be easy to spot, as they will be broken.
The blower shear bolts will be on the blower closer to the rear of the auger housing. There are several bolts on the auger itself. Shear bolts are at the front of the machine. If a shear bolt is broken on the auger, the auger will spin freely.įortunately, replacing a broken shear bolt is not difficult. If the auger is spinning but the machine is not blowing snow, then there may be a broken shear bolt on the blower. This will often make the machine difficult to push, thus giving the operator an indication of a problem. A broken shear bolt on the auger will typically mean that the auger no longer spins. Honda uses shear bolts in their snow blowers.Ī broken shear bolt or pin will have immediate effects on the machine. This will permit the auger to spin freely, thus relieving the stresses on it and the driveline. To prevent damage to these expensive components, snow blower manufacturers commonly use shear pins or shear bolts that are designed to fail above a certain stress threshold. When an auger impacts a solid object, significant stresses are imparted to the auger, the motor, the gearbox, and the blower. Snow blowers commonly encounter obstructions while in use, such as rocks or children’s toys.
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