What to Do When the Truck Handbrake Won't Release?

[VanAdriel]

Truck handbrake won't release, which can be analyzed in two scenarios. The first is due to incorrect operation preventing release, and the second is a malfunction in the vehicle itself. The details are as follows: 1. Truck Handbrake: The handbrake of a truck differs from that of a regular car. For some truck models, the handbrake requires pulling outward, then turning the handle on the handbrake clockwise to keep it in a parallel state before it can be released. Due to differences in models and brands, handbrakes may vary. For specific operation methods, it is recommended to refer to the vehicle's user manual, which provides detailed explanations. 2. Brake Wheel Cylinder: Another possibility is that the truck's handbrake itself is faulty. The most common cause is an issue with the brake wheel cylinder. The principle of truck braking generally involves the master cylinder generating thrust when the brake is pressed, forcing hydraulic oil into the brake wheel cylinder. The piston inside the brake wheel cylinder moves under hydraulic pressure, pushing the brake pads to stop the vehicle.