What is the method for adjusting the tightness of car brakes?
2 Answers
Car brake tightness adjustment methods vary depending on the situation: 1. If adjusting the brake pedal travel, there is a nut below the pedal that can be adjusted; 2. If adjusting the clearance, currently most vehicle calipers to brake discs or the clearance between leading/trailing shoes and brake drums are basically self-adjusting and do not require manual adjustment; 3. Only the handbrake can be adjusted, the foot brake cannot be adjusted. If it's too low, you can try bleeding the system. Current vehicles basically have adjustment units for this purpose. The function of brakes is to reduce speed or bring the vehicle to a stop. Their working principle is to use the friction between brake pads and brake drums, as well as between tires and the ground, to convert the kinetic energy of the moving vehicle into heat energy through friction, thereby slowing down or stopping the vehicle.
I've worked on quite a few drum brake vehicles before, and I think adjusting the brake tension is crucial. Find a safe, level spot to park, use a jack to lift the wheel, remove the brake drum cover, and check the adjustment wheel or eccentric wheel inside. Turning it clockwise tightens the gap, making the brake response firmer. Disc brakes usually self-adjust, but you can check the pedal free play, which should normally be 2-5 cm. If it's too loose, just add an adjustment nut. Remember to turn off the engine before working, and when testing, lightly press the brake to feel the pedal rebound. If it's too tight, it will accelerate wear. I recommend checking every six months to avoid losing control on the road. If you're not familiar with the tools, just take it to the shop—it's an easy fix.