What is a Parking Brake?
3 Answers
The manually operated brake installed in motor vehicles, commonly referred to as the handbrake, is the parking brake. It is used to stabilize the vehicle after it has come to a stop, preventing accidents caused by rolling on inclined surfaces. Precautions for Using the Parking Brake: Do not pull it too tight. In daily use of a mechanical handbrake, avoid pulling it excessively tight, as overstretching the metal cable or keeping it stretched for prolonged periods can accelerate deformation and aging, leading to a loosened handbrake or cable breakage. The correct method is to pull the handbrake until the rear wheels lock, then lift it 1-2 notches further, ensuring the vehicle does not roll. Avoid using the handbrake after snowy days or winter car washes. After driving on icy or snowy roads in winter, using the handbrake may cause it to freeze due to accumulated snow, rendering the vehicle immobile. Additionally, during winter car washes, refrain from using the handbrake; instead, use gears or bricks to secure the vehicle. Avoid prolonged parking on slopes using only the handbrake. Parking on slopes for extended periods solely with the handbrake will accelerate wear on the handbrake cable. The correct approach is to first engage the handbrake after parking, then place a brick or similar object in front of the wheels facing the downward slope to secure the vehicle. Release the handbrake to transfer the load to the wheels, then re-engage the handbrake.
The parking brake, commonly known as the handbrake or footbrake among drivers, is a dedicated fixed device used when parking to prevent the vehicle from sliding dangerously on slopes or flat ground. It's especially crucial for manual transmission cars because the vehicle might roll away when in neutral. Although automatic transmission cars rely on the P (Park) gear to lock, engaging the parking brake can share the load on the transmission, prolonging its lifespan. When activated, it locks the rear brake pads via a cable or electronic signal, preventing the wheels from rotating. For maintenance, I recommend checking monthly to ensure the cable operates smoothly without rust or that the button responds promptly. Never forget to use it when parking on a slope—it prevents rollaways that could hit people or objects. Though simple, safety comes first; making it a habit can prevent accidents.
As a car enthusiast, the parking brake is an independent mechanical or electronic braking system. Unlike the main hydraulic brakes, it directly acts on the rear wheels. You activate it by pulling a lever or pressing a pedal, and it works by tightening a cable to clamp the brake pads onto the wheels, preventing them from turning. Nowadays, new cars often feature electronic versions where you just press a button, while older cars still rely on more reliable mechanical levers. I make it a habit to regularly check the cable tension—too loose is no good—and replace the brake pads if they're worn out. If you park on a slope without engaging it, the car might roll away and cause an accident. Electronic types occasionally malfunction and require repairs. Understanding how it works can help you DIY inspections and save money.
