Brake master cylinder: the heart of the braking system
How important is the brake master cylinder? The brake master cylinder is the most important part in the hydraulic circuit of the automobile/forklift/construction machinery vehicle, because it converts the force exerted on the pedal into pressure and transmits it to the front and rear brakes. In addition to being an essential safety device, which must be absolutely reliable and have uncompromising quality requirements, the brake master cylinder is subject to enormous strain, both from a mechanical point of view and from the pressure exerted on it, and must therefore be Guarantees an excellent seal.
The rubber seal of the brake master cylinder is important.
Not only is it essential to their working performance, but above all the safe management of all operations: from "cruising" movements to loading and unloading activities.
Over time, a reduction in the braking efficiency of the vehicle may be noticed, primarily due to leakage of the internal rubber pads: in addition to the normal wear and tear that usually occurs after a few years of full-load use, this type of problem is related to the driver's driving style. In particular, sudden braking (often due to excessive time pressure) and the tendency to put your foot lightly on the brake pedal can significantly reduce the life of the rubber and therefore the life of the brake master cylinder.
Therefore, if the internal rubber seal wear out, the braking speed of the vehicle is reduced. When the problem gets worse, the brake pedal comes loose and the forklift is no longer safe, so it must be stopped and turned to certified technical assistance within a few hours.
How to detect brake master cylinder failure?
During prolonged braking we would notice that the pedal would get lower and lower and we would never put enough pressure on it to stop the vehicle. This non-negligible defect is caused by the failure of the rubber gasket inside the brake master cylinder, which must be replaced immediately. This means that components must be replaced immediately.
Oil can leak from the rear piston over time, if the vehicle is not regularly maintained, it can be difficult to identify such a defect, because the brake master cylinder is on the brake booster, so the oil can fall inside without leaving the outside trace.
Great care must be taken when replacing brake system components and is recommended only by professionals and authorised repairers. The entire plant also requires careful and precise cleaning (air and oil purification).
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