Removing a Drum Brake A Step-by-Step Guide
Drum brakes are a common type of braking system found in many vehicles, particularly on the rear wheels of older models. While they have largely been replaced by disc brakes in modern cars, understanding how to remove and service drum brakes is still a valuable skill for any car enthusiast or DIY mechanic. This article will guide you through the process of removing a drum brake safely and effectively, ensuring you can perform this task with confidence.
Tools and Materials Needed
Before you start, it’s important to gather the necessary tools and materials. You will need - Jack and jack stands - Lug wrench - Screwdriver (flathead and Phillips) - Brake cleaner - C-clamp or brake spring tool - Hammer - Rubber mallet (optional) - Replacement parts (if necessary)
Safety First
Before you undertake any work on your vehicle’s braking system, safety should be your top priority. Ensure the vehicle is parked on a flat surface, engage the parking brake, and wear safety glasses and gloves to protect your eyes and hands from dust and sharp components.
Step-by-Step Process
1. Loosen the Lug Nuts Begin by loosening the lug nuts on the wheel corresponding to the drum brake you want to remove. Do this while the wheel is still on the ground to prevent it from spinning.
2. Lift the Vehicle Use a jack to lift the vehicle off the ground. Once elevated, place jack stands underneath the vehicle to secure it. Never rely solely on the jack for support.
3. Remove the Wheel Finish removing the lug nuts and take the wheel off to expose the drum brake assembly.
4. Inspect the Brake Assembly Before proceeding, take a moment to inspect the brake components. Look for any visible signs of wear or damage that may need addressing later.
5. Remove the Drum Drum brakes may be secured by retaining screws or simply by being held in place by the brake shoes. If screws are present, use a screwdriver to remove them. If the drum is stuck due to rust or debris, gently tap it with a hammer to loosen it. Be careful not to damage the drum during this process.
6. Compress the Brake Shoes Before removing the drum, it may be necessary to compress the brake shoes. This can be done using a C-clamp, which will create some space for the drum to slide off easily.
7. Remove the Brake Shoes (if necessary) If you need to replace the shoes, you will have to detach them from the backing plate. Use the brake spring tool or screwdriver to unhook the springs and separate the shoes from the assembly.
8. Inspect or Replace Parts At this point, assess the condition of the drum, shoes, and other components. If the drum is worn beyond specifications (usually more than 0.060” wear), consider replacing it. If the shoes are worn out, replace them as well.
9. Reinstallation To reinstall, follow these steps in reverse order. Ensure everything is secured properly. Pay special attention to the springs and adjusters, ensuring they are functioning correctly.
10. Final Checks Once everything is reassembled, spin the drum to ensure it moves freely. Reattach the wheel, lower the vehicle, and tighten the lug nuts to the manufacturer’s specifications.
Conclusion
Removing a drum brake may seem daunting, but with patience and attention to detail, it can be accomplished with relative ease. Regular maintenance of your vehicle’s braking system is crucial for safety, so it’s worthwhile to familiarize yourself with these procedures. Remember, if you feel unsure at any point during the process, it’s always best to consult a professional mechanic or refer to the vehicle’s service manual. Proper knowledge and execution can help you keep your vehicle in top condition while saving on expensive repair costs.