how to release rear drum brakes

How to Release Rear Drum Brakes

Rear drum brakes are a common sight on many vehicles, especially older models. They function by utilizing friction from brake shoes pressed against the inside of a drum to slow down the vehicle. When it's necessary to service or replace components of the rear drum brake system, knowing how to release the brake properly is essential. This guide will walk you through the process.

1. Gather the Necessary Tools

Before beginning, make sure you have the right tools at hand. You will need - A jack and jack stands - A lug wrench - A brake adjuster tool (typically a flat-head screwdriver) - Safety goggles and gloves for protection - WD-40 or a penetrating oil

2. Ensure Safety First

Safety is paramount. Begin by parking your vehicle on a flat surface and engaging the parking brake. Turn off the ignition, remove the keys, and place wheel chocks in front of the front tires to prevent movement.

3. Lift the Vehicle

Using a jack, lift the rear of the vehicle. Ensure it is stable by placing jack stands under the vehicle for added safety. Never rely solely on the jack for support.

4. Remove the Wheel

With the lug wrench, loosen and remove the lug nuts on the rear wheels. Carefully take off the wheel to expose the drum brake assembly.

5. Accessing the Drum

Once the wheel is removed, you will be able to see the drum. If the drum doesn’t slide off easily, it may be because the brake shoes are adjusted too tightly against the drum. Usually, there is a small access hole on the back of the drum for that purpose.

6. Adjust the Brake Shoes

Insert the brake adjuster tool into the access hole and turn it to back off the brake shoes. This allows for the drum to be released from the shoes and makes it easier to remove. If the brake shoes are significantly worn or damaged, consider replacing them.

7. Remove the Drum

After you have sufficiently adjusted the shoes, attempt to remove the drum again. If there is still resistance, a gentle tap with a rubber mallet can help free it while being careful not to damage the drum.

8. Inspect and Maintain

Once the drum is removed, inspect all components for wear or damage. Replace any parts if necessary, and clean the drum thoroughly. When reinstalling, ensure that the shoes are adjusted properly before placing the drum back on.

9. Finish Up

After everything is reassembled, replace the wheel, and hand-tighten the lug nuts. Lower the vehicle from the jack stands, then fully tighten the lug nuts in a crisscross pattern for even pressure.

In conclusion, releasing rear drum brakes may seem complicated, but with the right tools and approach, it becomes manageable. Always prioritize safety and consult your vehicle’s manual for specific instructions related to your model. Performing regular maintenance on your brakes will ensure safe driving and extend the life of your vehicle's braking system.