How to Determine When to Replace Brake Drums?
2 Answers
Methods to determine when brake drums need replacement are: 1. Observe if the thickness of the brake drum is only one-third of the original; 2. Notice any abnormal noises when lightly applying the brakes; 3. Experience delayed brake response and weakened braking force. Brake drums consist of rotating parts, fixed parts, actuating parts, and positioning adjustment devices. The method for replacing brake drums is: 1. Lift the car and remove the tire; 2. Unscrew the fixing screws on the brake wheel cylinder and remove the brake wheel cylinder; 3. Remove the old brake drum and push back the brake wheel cylinder piston; 4. Clean the installation bracket of the brake disc and install the new brake drum.
I remember last year when I was driving down a slope, the steering wheel shook violently when I braked, making me feel dizzy. After stopping to check, I removed the wheels and saw deep grooves worn into the surface of the brake drum, with fine cracks along the edges. That's when I realized the ignored warning signs—the screeching noise every time I hit the brakes was terrifying. I immediately went to the garage and had the parts replaced. Since then, I've made it a habit to inspect the drum condition every 10,000 kilometers or so: checking for abnormal noises, longer pedal travel, or excessive wheel hub heat. During regular maintenance, I also remind the mechanic to measure the thickness—if it's too thin, replace it. Safety comes first—don't wait until an accident happens to regret it. Especially before long trips, always double-check to avoid breaking down halfway.
