how to adjust parking brake on drum brakes

How to Adjust Parking Brake on Drum Brakes

If you own a vehicle with drum brakes, it's essential to understand the importance of an effective parking brake. Not only does it keep your car secure when parked, but it also plays a critical role in ensuring the overall safety of your driving experience. Over time, the components within the drum brake system may wear out or become misaligned, which can lead to adjustments being necessary for optimal performance. In this article, we will guide you through the step-by-step process of adjusting the parking brake on drum brakes.

Step 1 Gather Your Tools

Before starting the adjustment process, gather the necessary tools. You will typically need a jack and jack stands, a lug wrench, a ratchet and socket set, a flat-head screwdriver, and some brake cleaner. Always make sure to have safety glasses and gloves on hand for protection.

Step 2 Safely Lift the Vehicle

Park your vehicle on a level surface and engage the parking brake fully. Use the lug wrench to slightly loosen the lug nuts on the rear wheels (where the drum brakes are located) before raising the car. Next, utilize the jack to lift the vehicle off the ground and place jack stands beneath it for support. This is crucial for safety because you’ll be working underneath the car.

Step 3 Remove the Wheel

Once the vehicle is secure, completely remove the lug nuts and take off the wheel. This will give you access to the brake drum. Depending on your vehicle model, you may need to remove additional components to access the drum properly.

Step 4 Inspect the Brake Components

Before making any adjustments, take a moment to inspect the brake assembly. Look for signs of wear, such as cracked or damaged brake shoes, or excessive dust buildup in the drum. Clean any dirt or debris using the brake cleaner, as this will provide a clearer view of the components.

Locate the adjusting wheel or star wheel inside the brake assembly. This is usually found at the bottom or side of the brake shoe assembly. Using a flat-head screwdriver, turn the star wheel to expand or compress the brake shoes.

- To Tighten Turn the star wheel upward to push the shoes against the drum. Make sure the shoes are close enough to the drum but not in constant contact. - To Loosen Turn the star wheel downward to pull the shoes away from the drum. This is generally necessary if the brake shoes are too tight.

As you adjust, periodically spin the drum by hand to ensure it moves freely. The aim is to achieve a snug fit without restricting the drum's rotation.

Step 6 Check the Parking Brake Cable

With the shoes adjusted properly, check the parking brake cable for any signs of damage or excessive slack. The cable should exert sufficient pressure to fully engage the brake shoes when the parking brake is pulled. Adjust or replace the cable if necessary, following your vehicle's specifications.

Step 7 Reassemble and Test

Reinstall the drum and wheel, securing the lug nuts in a crisscross pattern to ensure even tightening. Lower the vehicle and remove the jack stands. Finally, test the parking brake by engaging it and ensuring that the rear wheels do not move. If you notice any slipping, further adjustments may be required.

Conclusion

Adjusting the parking brake on drum brakes is a straightforward process that can significantly enhance your vehicle's safety and performance. Regular maintenance and timely adjustments can prevent more severe issues down the line. If you encounter any problems during the adjustment process, or if the brakes do not function properly after your adjustments, it may be time to consult a professional mechanic. By ensuring your parking brake is in optimal condition, you can drive with confidence, knowing your vehicle is secure when parked.