What are the faults of the parking brake?
4 Answers
The faults of the parking brake include: 1. Parking brake failure: The main causes of failure are excessive clearance between the friction plate and the brake drum, oil contamination on the friction plate or brake drum, or severe wear of the friction plate, which should be repaired immediately. 2. Abnormal noise: Swing the parking brake by hand to check if the fixing screws are loose, the operating lever is deformed, the fixing pin shaft is loose, or the operating lever spring is damaged, and repair and adjust them in time. 3. The parking brake lever cannot be fixed: Check the lever head in the unfixed brake position, grip and release the lever handle, perform up and down movement tests to check if the lever is bent, stuck, or the spring is broken.
Parking brake failure is one of my biggest concerns while driving. Common issues include loose or broken cables, which can cause the car to roll dangerously when parked; excessively worn or corroded brake pads, leading to insufficient friction and unstable stopping; for electronic systems, sensor errors or control module failures can cause the handbrake to respond improperly; wiring problems like short circuits, open circuits, or blown fuses may also interrupt signals. Additionally, improper operation, such as accidentally pulling the handbrake while driving, can damage components. Once, my car rolled on a slope and nearly caused a collision before I realized the cable had failed. Remember to regularly test by parking on a small slope to check for movement—repair immediately at the first sign to avoid accidents.
I think parking brake issues can be mainly divided into mechanical and electronic aspects. For mechanical types, common problems include aging/stretched cables, jamming that prevents wheel fixation, and severely worn brake pads reducing effectiveness. Electronic versions frequently fail due to damaged control unit circuits, distorted sensor signals, software bugs causing command errors, short circuits in related wiring, or blown fuses paralyzing the system. Voltage instability also affects electronic components, while damp or cold environments accelerate part corrosion. Regularly testing braking force and using it gently without sudden pulls can prevent problem exacerbation.
A malfunctioning parking brake is extremely dangerous. Common issues include cable failure preventing wheel lock-up, electronic system failures causing unresponsiveness, and severely worn components leading to unstable parking. The risk of vehicle rollaway on slopes is high. Warning signs such as illumination of the warning light or vehicle shaking must be addressed immediately. Delaying repairs is unacceptable as it frequently leads to accidents.
