Wednesday, 15 April 2015

How to Replace a Brake Drum

Brake Drum Replacement

Safety Tip:
Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes.

Park the vehicle on a solid, level surface. Chock the wheels to keep the vehicle from moving.
If applicable, remove the rear wheel hub caps to gain access to the lug nuts. Loosen the rear wheel lug nuts with a tire iron but do not remove.
Using a floor jack, lift up the rear of the vehicle.
Secure the vehicle with jack stands on both sides for safety before starting any work. The pinch welds or the frame rails are the two best locations. Do not rely on the jack to hold the vehicle up while working.
Remove the lug nuts. Remove the rear wheels.
Verify that the parking brake is released. Remove the brake drum by pulling it outwards. Backing off the star wheel adjuster may be necessary if the drum is worn.
Clean the drum and brake assembly with a water based solution or using a spray brake cleaner. Visually inspect the brake drum for cracks, deep grooves, and scoring. Measure the brake drum inside diameter - replace if worn / oversize beyond maximum limits. If any of these conditions are found, the brake drum will need to be replaced.
Inspect the brake shoe linings and drum brake components for damage or wear.
Clean the inside of the new brake drum with brake cleaner. Turn the star wheel adjuster in to allow clearance for the new drum. Install the new brake drum.
Re-install the wheels and snug down the lug nuts.
Remove the rubber grommet from the backing plate. Insert a screw driver or brake adjuster tool into the slot and turn the star wheel adjuster to adjust the brake shoes out. Adjust until only a slight drag is heard or felt when the brake drum is rotated.
Install the wheel and install the lug nuts. Apply the initial tightening torque in a criss-cross pattern. Lower the vehicle to the ground and apply a final torque to the lug nuts to the manufacturer's specifications in a star pattern. Road test the vehicle.

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