The self mixing concrete mixer is generally large in size, which is difficult to drive. It has a high center of gravity, is easy to roll over, and has a large load mass. When driving, the inertia is relatively large. When parking, whether on the flat ground or on the slope, the parking brake must be used. The parking brake is called handbrake for short. The use effect of handbrake will decline with the increase of use times. Sometimes During operation, I feel that the handbrake has been applied, but in fact, the failure or failure of the handbrake causes an accident. Therefore, the maintenance of the parking brake is also very important.
The parking brake system of the self mixing concrete mixer works on the rear wheel. Because of the different forms of the rear wheel brake, there are two working environments for the parking brake: on the rear wheel with the drum brake installed, the drum brake itself can also act as the parking brake, so when parking, the shoes and friction plates in the brake drum are combined to generate power; when installing On the rear wheel with butterfly brake, since there is no brake drum, additional brake drum must be installed in the center of brake disc to complete the brake work. To be exact, the parking brake system of the self mixing concrete mixer is equipped with ratchet and pawl. After the hand brake is pulled up, the pawl will be stuck on the ratchet, making the hand brake lock automatically, which is the reason why we can hear "click" sound when tightening the hand brake handle.
The self mixing concrete mixer has an adjustable compensation mechanism at the bottom of the handbrake handle and the connection of the copper cable. If the wrench is used to loosen the lock nut, the length of the brake copper cable can be stretched. If in the inspection, we find that the brake effect or sensitivity of the handbrake is not ideal, we can adjust the handbrake to operate the copper cable to solve the problem. It is not uncommon for the handbrake failure to cause accidents, not only for the mixer, but also for other vehicles, such as passenger cars, on-board cranes, obstacle clearance and so on. It is necessary to check the handbrake of your car frequently, find out the problems, and deal with them in time.
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