Use and Maintenance of Tractor Braking System

Correct use and timely maintenance keep the tractor brake system in good technical condition and maintain excellent braking effect, which is beneficial to ensure safe driving, save fuel, reduce tire wear and extend the service life of brake parts. The following are the precautions for using the tractor's braking system.

 

(1) Always check the braking performance, find problems and repair them in time, and only drive when the brake system is safe and reliable.

 

(2) Keep a safe distance from the vehicle in front (greater than the braking stop distance) while driving. The braking distance of the vehicle varies with road conditions, speed, and load. The braking distance increases on icy, muddy roads, and the braking distance increases at high speeds and heavy loads. Be prepared at all times to prevent accidents.

 

(3) Load accordance with regulations strictly, maintain stable speed, and try to avoid emergency braking. Reasonable application of "predictive deceleration and predictive parking technology", that is, according to the road conditions of the discovered direction of travel and other possible complex situations, make ideological and technical preparations in advance. In situations where it is necessary to slow down or stop in a planned and prepared manner, to avoid taking emergency brakes too late which will increase the wear of brake and tire. There are two methods of predictive deceleration. One is to reduce the throttle and use the compression work of the cylinder at tractor engine idle speed as the braking force to decelerate the vehicle; the other is to decelerate the brake. Pedal (also can use "point brake"), and brake slowly without stopping. Predictive parking is to gradually release the brake pedal under the condition of predictive deceleration. When the vehicle will stop, the brake pedal will be raised slightly and then gently stepped down.

 

(4) Under normal circumstances, the throttle should be reduced first, and then the tractor clutch should be disconnected before braking to protect the drive train components from damage.

 

(5) When encountering dangerous situations or emergencies while driving, emergency braking should be implemented immediately. For emergency braking of pneumatic brakes, depress the brake pedal firmly and then the tractor clutch pedal; for hydraulic brake tractors, when the braking effect is not obvious, it can be released immediately according to the tractor conditions. The pedal is quickly depressed again to maximize the braking efficiency. In a very emergency situation, when it is too late to step on the clutch pedal, the clutch pedal may not be stepped on after emergency braking, but the transmission mechanism is easily damaged. In order to enhance the emergency braking effect, the parking brake can also be used at the same time. Emergency braking is prohibited on narrow, curvy and muddy roads.

 

(6) When transporting wheeled tractors working, the brake pedals should be interlocked to prevent serious accidents caused by the misuse of unilateral braking during high-speed driving, and the trailer brake should be synchronized with the tractor's brake or the trailer brake slightly ahead. Do not put your feet on the brake pedal during driving, so as not to cause the friction of the brake shoe friction lining and the brake hub to generate heat and cause wear or burn out.

 

(7) On a pneumatic brake tractor, the air horn cannot be connected to the wet air reservoir, so as not to use too many air horns. When the air pressure in the cylinder drops below the air pressure of the trailer air reservoir, the trailer brakes on its own, which may lead to not easy diagnosed failure. The air horn should be installed on the main air reservoir piping.