How to Adjust Drum Brakes After Replacement for Optimal Performance

Adjusting drum brakes after replacing them is a critical step to ensure proper function and safety. This guide will walk you through the process, ensuring your vehicle’s drum brakes operate smoothly and safely. Let’s dive into the detailed steps required for this adjustment.

Tools You’ll Need

Brake adjustment tool or screwdriver (depending on your brake type) Jack and jack stands Lug wrench (Optional) Brake cleaner Safety glasses and gloves

Steps to Adjust Drum Brakes

Step 1: Raise the Vehicle

Using a jack, lift the vehicle and secure it with jack stands. Ensure that the vehicle is stable and safe to work on.

Step 2: Remove the Wheel

Use a lug wrench to remove the lug nuts and take off the wheel to access the drum.

Step 3: Inspect the Brake Components

Before adjusting, inspect the brake shoes, springs, and other components. Clean any dust or debris with brake cleaner if necessary.

Step 4: Locate the Adjuster

Inside the drum, you will find the brake shoes. Look for the adjuster mechanism, which is typically a star wheel or a lever.

Step 5: Adjust the Brake Shoes

Using a Brake Tool:

Insert the tool into the slot on the backing plate and turn the star wheel to expand the shoes. Continue turning until the shoes just begin to contact the drum.

Using a Screwdriver:

If your brakes have a lever adjuster, use a flathead screwdriver to turn the adjuster.

Step 6: Check the Drum Fit

After adjusting, spin the drum by hand to ensure it rotates freely. If it binds, back off the adjuster slightly until the drum turns smoothly.

Step 7: Reinstall the Wheel

Once the brakes are adjusted, reinstall the wheel and hand-tighten the lug nuts.

Step 8: Lower the Vehicle

Carefully lower the vehicle back to the ground using the jack.

Step 9: Tighten Lug Nuts

With the vehicle on the ground, use the lug wrench to fully tighten the lug nuts in a criss-cross pattern to ensure even tightening.

Step 10: Test Drive

Take the vehicle for a short test drive at low speeds to ensure that the brakes are functioning correctly. Listen for any unusual noises and check for smooth braking.

Additional Tips

Self-Adjusting Brakes

If your drum brakes are self-adjusting, they may adjust automatically when you drive in reverse and apply the brakes. However, manual adjustment can still be necessary after replacement.

Brake Fluid

Check the brake fluid level and condition, as replacing brakes can sometimes lead to air entering the brake lines. Bleeding the brakes may be required.

By following these steps, you can ensure that your drum brakes are properly adjusted for optimal performance. If you are unsure or uncomfortable with the process, consider consulting a professional mechanic.