How to Release Drum Brakes A Step-By-Step Guide
Drum brakes have been a popular choice for vehicles for many years due to their durability, reliability, and cost-effectiveness. While they are often less common in modern cars, understanding how to release drum brakes is essential for vehicle maintenance and safety, especially if you are working on older models or specific types of vehicles. If you encounter issues such as brake drag or want to replace the shoes, knowing how to release drum brakes properly can be incredibly helpful. This guide will provide you with a detailed step-by-step process to ensure you can release drum brakes safely and effectively.
Step 1 Gather Your Tools
Before you start the process of releasing drum brakes, make sure you have all the necessary tools on hand. You will need
- A jack and jack stands - A lug wrench - Screwdrivers (flat and Phillips) - Pliers - Brake cleaner - Wrenches (specific sizes depend on your vehicle) - A drum brake tool kit (optional but recommended for specific adjustments)
Step 2 Prepare Your Vehicle
1. Ensure Safety Park your vehicle on a flat surface and set the parking brake. Turn off the ignition and remove the key to prevent accidental movement. 2. Lift the Vehicle Using the jack, lift the vehicle from the side where you will be working. Make sure to locate the vehicle’s jacking points—these are usually specified in the owner's manual. Once the vehicle is elevated, secure it with jack stands.
3. Remove the Wheel Using the lug wrench, loosen and remove the lug nuts from the wheel you are working on. Keep these nuts in a safe place as you will need them for reinstallation.
Step 3 Inspect the Drum Brake Assembly
Once you have the wheel removed, you’ll have access to the drum brake assembly
1. Visual Inspection Inspect the entire assembly for signs of wear, leaks, or damage. Look over the brake shoes, drum, and hardware. If you see significant wear, it may be time for replacements.
2. Check the Adjustment Drum brakes typically have an adjustment mechanism. You might see an adjustment wheel or lever. Depending on your observations, you may need to adjust these to aid in releasing the drum.
Step 4 Release the Drum
1. Locate the Adjusting Mechanism Most drum brakes have a self-adjusting mechanism that can be accessed through a small hole in the backing plate. Use a flat screwdriver to turn the adjuster in the direction indicated on the sticker (usually found inside the drum or on the backing plate). Turning the adjuster will either tighten or loosen the brake shoes from the drum.
2. Tap the Drum If the drum is still stuck after adjusting, lightly tap around the edges with a hammer. This can help dislodge any rust or debris that may be causing the drum to stick.
3. Check for the Retaining Springs Ensure that none of the retaining springs are over-engaged. If they are, you may need to manually release them by carefully pulling back slack.
Step 5 Remove the Drum
With everything adjusted and checked
1. Carefully Pull the Drum Off Once you’ve ensured that all connecting mechanisms are not causing a bind, carefully pull the drum straight off the hub. If it’s still stuck, continue adjusting the brake shoes until you can remove the drum.
2. Cleaning If you’re working on maintenance or repairs, it's advisable to clean the drum and all components using brake cleaner. This helps in assessing the condition of the parts and prepares them for reinstallation or replacement.
Step 6 Reinstall Everything
After you’ve completed your inspection or replacement
1. Reinstall the Drum Replace the drum, ensuring that it sits flush with the hub.
2. Tighten Adjustments Adjust the brakes one last time with the adjusting mechanism to ensure they function correctly.
3. Reattach the Wheel Place the wheel back on, hand-tightening the lug nuts.
4. Lower the Vehicle Remove the jack stands and carefully lower the vehicle to the ground. Tighten the lug nuts in a criss-cross pattern to ensure an even fit.
Conclusion
Releasing drum brakes may seem daunting at first, but with the right tools and a systematic approach, it becomes manageable. Regular maintenance checks can prolong the life of your brakes and enhance your driving experience. Remember, if you’re ever unsure about any part of this process, consulting a professional mechanic is always a safe choice. Happy driving!