How to Replace a Snowblower Shear Pin
This step-by-step repair guide shows how to replace the shear pin. If the auger jams on an object or hard-packed snow, a shear pin breaks to protect the engine from damage. Once the pin breaks, the auger is no longer attached to the drive shaft and won’t rotate. Replace the shear pin with a manufacturer-approved replacement part if it is broken.
Less than 15 min.
Before you begin
Check for replacement shear pins stored in a bracket on the control panel.
Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.
Step 1: Disconnect the spark plug wire
Pull the wire straight up and off of the plug.
Step 2: Remove the broken shear pin
Remove the broken shear pin, using a hammer and nail to completely clear the hole of any pieces.
Step 3: Insert the new shear pin
Realign the holes in the auger and the shaft. Insert the new shear pin and secure it with the bow tie pin.
Step 4: Test the auger
Reconnect the spark plug wire. Start the engine and test the operation of the auger.