how to replace a drum brake

How to Replace a Drum Brake

Replacing a drum brake may seem challenging, but with the right tools and guidance, you can successfully complete the task yourself. Drum brakes are commonly used in vehicles, particularly in the rear wheels, and are essential for effective braking. Here’s a step-by-step guide on how to replace a drum brake.

Tools and Materials Needed

Before starting, gather the following tools and materials - Jack and jack stands - Lug wrench - Brake drum removal tool (if needed) - New brake shoes - Brake cleaner - Brake grease - Ratchet and socket set - Screwdrivers - C-clamp or brake spring tool

Step-by-Step Instructions

1. Safety First

Ensure your vehicle is parked on a flat surface and engage the parking brake. Wear safety glasses and gloves to protect yourself during the process.

2. Remove the Wheel

Using a lug wrench, loosen the lug nuts on the wheel corresponding to the drum brake you want to replace. Once loosened, raise the vehicle with a jack and place it securely on jack stands. Remove the lug nuts completely and take off the wheel to expose the brake drum.

3. Inspect and Remove the Brake Drum

Check the brake drum for any visible damage or excessive wear. If it's in good shape, you can proceed. To remove the drum, you may need to tap it gently with a hammer to loosen it. In some cases, a brake drum removal tool may be necessary. Once loose, slide the drum off the wheel hub.

4. Examine the Brake Components

With the drum removed, inspect the brake shoes, springs, and other components for wear or damage. Take note of how everything is assembled, as this will guide you when installing new parts. It’s common to take a photo for reference later.

5. Remove the Old Brake Shoes

Using a ratchet and socket, remove the bolts holding the shoes in place. Detach the springs using a spring tool or carefully with pliers. Keep the springs, as you may need them for the new shoes. If they are worn, it’s best to replace them as well.

6. Install New Brake Shoes

Begin by attaching the new brake shoes to the backing plate, reusing the springs if they are still in good condition. Make sure they are positioned correctly according to the reference photo you took earlier. Tighten any bolts securely.

7. Clean and Reinstall the Brake Drum

Before reinstalling the brake drum, clean it with brake cleaner to remove dust and debris. Then, carefully slide the drum back onto the wheel hub, ensuring it fits snugly over the new brake shoes.

8. Reattach the Wheel

Place the wheel back onto the hub and hand-tighten the lug nuts. Once everything is securely in place, lower the vehicle from the jack stands. Finish tightening the lug nuts in a star pattern to ensure even pressure.

9. Test the Brakes

Before hitting the road, pump the brake pedal a few times to seat the shoes against the drum. Conduct a test drive in a safe area to ensure everything is working properly.

Conclusion

Replacing a drum brake doesn’t require professional help if you have the right tools and follow the steps above. However, if you encounter any issues or feel uncertain, don’t hesitate to consult a professional mechanic. Regular maintenance of your brake system is crucial for vehicle safety and performance.