how to loosen drum brake adjuster

How to Loosen Drum Brake Adjuster A Step-by-step Guide

Drum brakes are commonly found in older vehicles and some modern models, especially in their rear wheels. Over time, the brake shoes in drum brakes wear down and require adjustment to ensure optimal braking performance. If you notice that your braking performance is suffering, it could be due to the brake adjuster being too tight. This article will provide a thorough guide on how to loosen the drum brake adjuster effectively and safely.

Understanding Drum Brakes

Before diving into the adjustment process, it's essential to understand what a drum brake is and how it functions. Drum brakes consist of a round metal drum that rotates with the wheel. Inside the drum, there are brake shoes that are pressed against the drum's inner surface to create friction when the brakes are applied. The brake adjuster is a mechanism that keeps the brake shoes close to the drum as they wear down, ensuring consistent braking performance. However, if it gets too tight, it can cause premature wear and affect braking efficiency.

Tools and Materials Needed

To loosen the drum brake adjuster, you will need the following tools and materials

1. Jack and jack stands 2. Lug wrench 3. Screwdriver 4. Brake cleaner 5. Brake adjustment tool or flathead screwdriver 6. Safety goggles and gloves

Step-by-Step Instructions

1. Safety First Begin by putting on safety goggles and gloves to protect yourself from dust and debris. Ensure you're working in a well-ventilated area.

2. Lift the Vehicle Use the lug wrench to loosen the lug nuts of the wheel where the drum brake is located. Place the jack under the vehicle’s designated lifting point and raise it until the tire is off the ground. Secure the vehicle with jack stands for added safety.

3. Remove the Wheel Once the vehicle is securely lifted, remove the lug nuts completely and take off the wheel to expose the drum brake assembly.

4. Inspect the Brake Components Before adjusting the brake, take a moment to visually inspect the brake shoes and drum for wear and damage. If you notice any significant wear, it might be time to replace the components.

5. Access the Adjuster Remove any dust cover or rubber plug from the back of the brake drum, where the adjuster mechanism is typically located. This will allow you to access the adjuster.

6. Loosen the Adjuster Using a brake adjustment tool or a flathead screwdriver, turn the adjuster in the counterclockwise direction. This action will loosen the brake shoes away from the drum. Be careful not to turn it too far; just a few clicks should suffice.

7. Test the Adjustment After loosening, rotate the drum by hand to ensure it moves freely without excessive friction. If there is still tightness, make additional adjustments until the drum spins freely.

8. Reassemble the Brake Components Once satisfied with the adjustment, replace the dust cover or rubber plug. Make sure all components are secure and clean from any debris.

9. Reinstall the Wheel Put the wheel back on, hand-tighten the lug nuts, and lower the vehicle from the jack stands. Once on the ground, use the lug wrench to securely tighten the lug nuts in a star pattern to ensure even pressure.

10. Test Drive Finally, take the vehicle for a short test drive to ensure the brakes are functioning correctly. Listen for any unusual noises and pay attention to the braking performance.

Conclusion

Loosening the drum brake adjuster is a straightforward process that can significantly improve your vehicle's braking efficiency and safety. Regular maintenance and timely adjustments are vital to ensure your braking system remains in top condition. If you're unsure or uncomfortable performing this task, it’s always wise to seek assistance from a professional mechanic. Safe driving!