What are the faults of the parking brake?
4 Answers
The faults of the parking brake include: ineffective braking, brake failure, deviation, and dragging. The causes of parking brake failure are: 1. Insufficient brake oil pressure; 2. Air in the brake system; 3. Excessive free travel of the brake pedal or excessive brake clearance; 4. Wear or damage to the brake master cylinder, wheel cylinder piston, wheel cylinder pipe, or aging and damage of the rubber cup. The method of using the parking brake is: when operating, the four fingers of the right hand are closed together, the tiger's mouth is forward, the right hand is lifted forcefully to tighten the control lever, and the brake indicator light on the instrument panel lights up at the same time. The parking brake refers to the manual brake installed in motor vehicles, commonly known as the handbrake, which is used to stabilize the vehicle after it is parked and to avoid accidents caused by the vehicle rolling on a sloping road surface.
Parking brake failures can be quite a headache. I've encountered this issue several times while driving. The most common problem lies in the cable mechanism - in older vehicles, the cables may become loose or even snap, causing the car to roll when parked. I once had to manually hold the car on a slope to prevent a dangerous situation. Another contributing factor is excessively worn brake pads, which reduce braking effectiveness, especially when regular maintenance is neglected. For electronic systems, faulty sensors or control modules might trigger false alarms, or insufficient battery power could render the entire system inoperative. My suggestion for car owners is to conduct a simple test: after engaging the parking brake, gently press the accelerator to see if the vehicle moves. If it does, seek professional repair immediately as safety should never be compromised. Regular maintenance checks on cable condition and lubrication of linkage mechanisms can effectively prevent such troubles.
As a seasoned driver with years of experience, I've found that the main causes of parking brake failure are mechanical component jamming or rust. Aging cables often fail to tighten properly, especially after humid weather; if the linkage mechanism accumulates too much dust, it can easily get stuck, rendering the brake ineffective. Once, my car started sliding on a slope, but fortunately, I noticed it in time and managed to control it manually. I recommend performing a simple weekly check on the cable's elasticity and lubricating the joints with some anti-rust oil. If a failure has already occurred, prioritize inspecting the mechanical parts and don't overlook potential risks. Remember, a malfunctioning parking brake can lead to rollaway accidents, so always proceed with caution—safety first.
A parking brake malfunction can make daily parking inconvenient. I usually rely on the electronic parking brake, and sudden failures are often due to sensor issues or foreign objects blocking the brake mechanism; or power system failures, such as low battery levels triggering error messages. Sometimes, improper operation can also cause false alarms. In such cases, I try restarting the system or checking the vehicle's information display for prompts. If that doesn't work, I take it to a repair shop for calibration. Regularly cleaning dust from the brake area and maintaining electronic components can prevent most malfunctions. After all, small issues can have big impacts.
