How to Replace a Snowblower Friction Disc
This step-by-step repair guide shows how to replace the friction disc on a snowblower.The friction disc helps propel the snowblower forward. When in contact with the spinning drive wheel, the friction disc rotates and turns the axle. If the friction disc is worn or damaged, the snowblower moves slowly or erratically. Replace the friction disc with a manufacturer-approved replacement part if it is worn out or broken.
Less than 30 min.
Before you begin:
Siphon out the gas or run the snow blower until the tank is empty. Allow the engine to cool.
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 spark plug wire straight up and off the plug.
Step 2: Remove the frame cover
Tip the snow blower forward so it rests on the auger housing. Remove screws that secure the frame panel located between the wheels. Detach the panel to access the drive system components.
Step 3: Remove both wheels
Remove the bolts that secure each wheel to the axle. Pull off both wheels.
Step 4: Remove the hex shaft mounting nut
Hold the hex shaft stationary with a 13/16" open-end or adjustable wrench. Remove the mounting nut using a ratchet and 1/2" socket or wrench.
Step 5: Remove the friction disc
Lightly tap the left end of the hex shaft to push the bearing out of the right side of the frame. Remove the bearing. Carefully pull the hex shaft down and to the left. Pull the friction disc off the shaft.
Step 6: Clean the shaft
Remove any rust from the shaft and clean it thoroughly. Apply anti-seize compound to the shaft.
Step 7: Install the new friction disc
Slide the new friction disc onto the hex shaft. Position the friction disc properly and push the hex shaft back into the bearing on the right side of the frame. Reinstall the hex nut and tighten.
Step 8: Reinstall the wheels
Push the wheels onto the axle. Reinstall the washer and mounting nut on each wheel. Tighten the mounting nuts securely on the axle.
Step 9: Reinstall the frame panel
Position the frame panel and line up the mounting holes. Insert the mounting screws and tighten firmly. Pivot the snow blower upright so it rests on its tires.
Step 10: Test the snow blower
Reconnect the spark plug wire. Fill the tank with gas and test the snow blower.