drum brake change

Understanding Drum Brake Change A Comprehensive Guide

The drum brake system is an essential component of many vehicles, particularly those on the older side or certain types of vehicles like trucks and vans. Understanding how and when to change drum brakes is crucial for both safety and performance. If you’re considering tackling this maintenance task yourself, or simply want to understand what’s involved, this guide will walk you through the process of changing drum brakes, ensuring that your knowledge is both comprehensive and practical.

What Are Drum Brakes?

Drum brakes operate on a different principle than disc brakes. Instead of using a disc that a caliper squeezes to create friction, drum brakes consist of a cylindrical drum that rotates with the wheel. Inside the drum are brake shoes, which are pushed outward against the drum’s inner surface when the brakes are applied, creating the necessary friction to slow or stop the vehicle.

Signs You Need to Change Drum Brakes

Several indicators can signal that it’s time to change your drum brakes 1. Squeaking or Squealing Noises This could indicate that the brake shoes are worn down and need replacement. 2. Grinding Noises If you hear grinding when applying the brakes, this may mean that the brake shoes are completely worn and metal is rubbing against metal. 3. Pulling to One Side If the vehicle pulls to one side when braking, this can indicate uneven wear or malfunctioning brake components. 4. Vibration If you experience vibrations when you apply the brakes, it might suggest that the drum is warped or damaged.

Preparing for the Change

Before you begin the process, it’s essential to gather the necessary tools and parts, which typically include - New brake shoes - Brake drum - Brake cleaner - Wrenches and a socket set - A jack and jack stands - A lug wrench - A brake spring tool

1. Safety First Start by ensuring the vehicle is on a level surface. Use wheel chocks to prevent any rolling.

2. Lift the Vehicle Use a jack to lift the car and secure it with jack stands for safety. Remove the wheels using the lug wrench.

3. Remove the Drum You may need to remove a retaining clip or screws holding the drum in place. Tap the drum gently with a hammer if it seems stuck.

4. Inspect the Components Once the drum is off, check the brake shoes, springs, and the drum for any visible damage. Clean everything with brake cleaner to remove dust and debris.

5. Replace the Brake Shoes Remove the old brake shoes by detaching the springs and other components. Install the new brake shoes, ensuring that the orientation is correct. Use a brake spring tool to reattach the springs.

6. Reinstall the Drum Once the new shoes are in place, slide the drum back over the shoes and ensure it rotates freely.

7. Reassemble the Wheel Replace any retaining clips, if applicable, and reinstall the wheel. Tighten the lug nuts in a crisscross pattern to ensure even pressure.

8. Repeat on the Other Side It’s important to change both sides of the axle to maintain even braking performance.

9. Lower the Vehicle Once both sides are completed, lower the vehicle back to the ground.

10. Test the Brakes Before driving, pump the brake pedal a few times to seat the new shoes against the drum. Test the brakes at low speed in a safe area.

Conclusion

Changing drum brakes can be a challenging yet rewarding task for any car enthusiast. By understanding the signs of wear, gathering the right tools, and following the proper steps, you can effectively replace your drum brakes. However, if you’re uncertain or uncomfortable with any part of the process, don’t hesitate to seek help from a professional mechanic. Regular maintenance of your braking system is vital for your safety and the longevity of your vehicle.