Why do brakes react slowly
Release time：
2023-05-18 09:23
Why do brakes react slowly? There are probably the following aspects:
(1) The pedal is too far to travel freely.
(2) The brake fluid in the brake master cylinder is too low, or the hole is blocked by impurities, causing the master cylinder parts to age, swell, or even deform or be knocked over.
(3) The brake master cylinder parts are severely worn, causing looseness and oil leakage. The return valve is not properly sealed, and the tension spring of the outlet valve is broken.
(4) The parts of the brake wheel cylinder are aging and expanding, the piston is blocked, and the live parts of the wheel cylinder are severely worn, resulting in loose connections and oil leakage.
(5) The brake shoes are severely worn, and the brake clearance is relatively large or not properly installed.
(6) The brake drum is not round, causing grooves or wear, oil stains on the outside of the brake shoes, burning and becoming very hard, and obvious rivets.
(7) There is oxygen entering the braking system, or the temperature inside the braking system is too high, causing the brake fluid in the pipeline to vaporize, resulting in air resistance.
(8) The oil pipe is not round, the connection is not too tight, there is oil leakage, the hose is aged, broken, or blocked by impurities.
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Essentials of brake pedal operation
1. Slow braking: Press the clutch pedal while releasing the accelerator pedal, push the gear lever to the low gear position, then lift the clutch pedal and quickly place the right foot on the brake pedal. Gradually press the brake pedal according to the required speed and parking distance until it stops.
The working principle of the brake
Use the mutual friction between non rotating components connected to the vehicle body (or frame) and rotating components connected to the wheel (or transmission shaft) to prevent the rotation or tendency of the wheel. A brake is a device that has the function of slowing down, stopping, or maintaining a stopped state of moving parts (or moving machinery). The brake mainly consists of a brake frame, brake components, and control devices, and some brakes are also equipped with automatic adjustment devices for brake component clearances. In order to reduce braking torque and structural dimensions, brakes are usually installed on the high-speed shaft of equipment, but large equipment with high safety requirements (such as mine hoists, elevators, etc.) should be installed on the low-speed shaft near the working part of the equipment.
Disc and drum brake systems for motor vehicles
The function of the car braking system is to slow down or stop the driving car according to the driver's needs, maintain a stable speed for downhill driving, and keep the stopped car in place. According to the timing of the braking system, it can be divided into service braking system, parking braking system, emergency braking system, and auxiliary braking system. According to the braking control energy, the braking system can be divided into manual braking system, power braking system, and servo braking system. According to the transmission mode of braking energy, braking systems can be divided into mechanical, hydraulic, pneumatic, electromagnetic, and combination braking systems. The automotive braking system mainly consists of four parts, namely energy supply device, control device, transmission device, and brake.
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