Changing Brake Drums A Comprehensive Guide
When it comes to vehicle maintenance, changing the brake drums is an essential task that should not be overlooked. Brake drums play a critical role in the vehicle's braking system, particularly for those equipped with drum brakes, which are still common in many older cars and trucks. Understanding how to properly change brake drums can save you time and money while ensuring your vehicle runs safely.
Understanding Brake Drums
Brake drums function by creating friction with the brake shoes to slow down or stop the vehicle. Over time, these drums can wear down due to heat, friction, and other factors, leading to decreased braking efficiency and potential safety hazards. Signs that it may be time to replace your brake drums include unusual noises, vibrations while braking, and a decrease in braking power. Regular inspections can help you catch these issues early and maintain your vehicle's performance.
Tools and Materials Needed
Before starting the process, gather the necessary tools and materials. You will need - A car jack - Jack stands - A lug wrench - A brake drum puller (if necessary) - New brake drums - Brake shoes (if needed) - Brake cleaner - Clean rags - A torque wrench
Having all the tools on hand will streamline the process and prevent any unnecessary delays.
The Changing Process
1. Preparation Begin by parking your vehicle on a flat, solid surface. Engage the parking brake to ensure stability during the procedure.
2. Raising the Vehicle Loosen the lug nuts on the rear wheels slightly before jacking the vehicle up. Once elevated, secure the vehicle with jack stands for safety. Remove the lug nuts completely and take off the wheel to access the brake assembly.
3. Removing the Brake Drum If the drum doesn’t come off easily, you may need to use a brake drum puller to detach it from the wheel hub. Inspect the brake shoes for wear and replace them if necessary.
4. Installing New Brake Drums Clean the mating surfaces with brake cleaner to ensure a good fit for the new drums. Place the new brake drum onto the hub and bolt it securely in place. If you’re changing the brake shoes as well, follow the manufacturer’s instructions for installation.
5. Reassembling the Wheel Once the new drum is in place, carefully put the wheel back on. Hand-tighten the lug nuts and lower the vehicle back onto the ground. Use the torque wrench to tighten the lug nuts to the manufacturer’s specifications.
6. Testing After completing the installation, it’s crucial to test the new brakes. Start the vehicle and gently press the brake pedal multiple times to ensure the brake shoes fit correctly against the new drums. Perform a short test drive in a safe area to confirm that everything is functioning properly.
Conclusion
Changing brake drums might seem daunting, but with the right tools and knowledge, it becomes a manageable and rewarding task. Regular maintenance of your braking system, including timely drum replacements, can enhance safety and performance, ultimately prolonging the life of your vehicle. If you feel uncomfortable performing this task, it is always wise to consult with a professional mechanic. Your safety on the road should always be your top priority.