Why is the handbrake not working?
2 Answers
The handbrake is not working because the brake pads of the handbrake are severely worn. Related introduction: 1. Introduction: The professional term for the handbrake is auxiliary brake, which differs in principle from the main brake. It uses a steel cable connected to the rear brake shoes to apply braking force to the vehicle. Long-term use of the handbrake can cause the steel cable to undergo plastic deformation. Since this deformation is irreversible, prolonged use will reduce its effectiveness, and the handbrake's travel will also increase. 2. Expansion: The handbrake is used in conjunction with a return spring. When the handbrake is engaged, the spring is stretched; when the handbrake is released, the spring returns to its original length. With long-term use, the spring will also undergo corresponding deformation.
I've been driving for over 30 years and have encountered several instances where the handbrake failed. The most common issue is when the brake cable stretches or becomes loose. Over time without adjustment, pulling it up feels limp and lacks tension. Worn brake pads are another frequent cause, especially if the car sits unused for long periods, leading to rust or oil contamination on the brake drums, which affects braking performance. I remember once parking on a slope—even with the handbrake engaged, the car still slid slightly, giving me a real scare. It's advisable to promptly check the brake system and cable tension. Regular maintenance, like lubricating brake components, can prevent most issues. Safety should always come first—don't underestimate these seemingly minor problems. A runaway car can lead to dangerous accidents.
