In order to improve the safety of tractor transport operations, most tractors are equipped with air brakes. After installing the seven killing devices, many agricultural robots often have some negligent mentality because of the security. In order to ensure safety, we must always pay attention to safety risks.
The following are the safety issues that need to be taken into account after installing the air brake device on the tractor:
First, keep the inside and outside of the air reservoir clean
To keep the outside of the air reservoir clean, apply paint in time to remove the paint to prolong its service life. Keep the inside of the air reservoir clean to avoid residual oil and water. Every three days of operation, the tractor needs to unscrew the exhaust valve in the lower part of the air reservoir to remove the oil and accumulated water accumulated in the air reservoir. Otherwise, the oil and water in the air reservoir may cause the brake to be ineffective or unable to brake. . The oil and water in the air reservoir will enter the brake valve and the brake air chamber with the brake pipe, which will affect the circulation of the compressed air, which naturally causes the brake to be ineffective or unable to brake.
Second, maintain a suitable air pressure
If the brake air pressure is too low, there will be a brake failure, prolong the braking distance, and cause a driving safety accident; if the brake air pressure is too high, the brake will be too strong, which will cause the wear of the machine to be intensified and the load of the air reservoir. If it is too large, the air pump and the air reservoir are damaged. Therefore, the proper air pressure must be maintained. General requirements: At the beginning, the air pressure is above 4.5 kg/cm 2; during normal driving, the air pressure is not more than 7 kg/cm 2 . If the air pressure exceeds 7 kg/cm 2 , the sound of the safety valve on the air reservoir should be heard.
Third, should be adjusted to the drag brake slightly ahead of the main car
The tractor's trailer and cargo are heavy and have a large inertia. If the trailer is braked at the same time as the tractor main vehicle, and even the tractor main vehicle is braked ahead of the tractor, the strong inertia of the trailer and the cargo pushes the tractor main vehicle, causing the tractor main vehicle to lose control and deviation. Therefore, it should be adjusted to the trailer brake slightly ahead of the main car.
Fourth, the brake problem
By adjusting, the four wheels of the tractor main car are braked at the same time, and the four wheels of the trailer are simultaneously braked. When the tractor brakes at high speed or during emergency braking, if the brakes of the right, left, front and rear wheels of the main car or trailer are different, the tractor will suddenly turn off. When it is serious, it will suddenly turn to one side and it will be easy to brew. Turn into a tractor. Therefore, when the right, left, front and rear wheels of the tractor are braked differently, the four wheels of the tractor main car should be adjusted to brake at the same time, and the four wheels of the trailer are simultaneously braked.
Fifth, the brakes should be flexible and effective
In order to ensure that the tractor brake is flexible and effective, the operator should do the following three points: 1. Check whether the brake pipe connection is reliable before exiting the car. 2. Test the brakes several times in a row to make the brakes flexible and effective. 3. When the next slope is down, ensure that the air pressure is sufficient. If the air pressure is insufficient, stop and pump before the downhill slope until the air pressure is sufficient to drive downhill.
Sixth, the operation method should be correct when braking
Under normal conditions, first stop the throttle to lower the speed, then separate the "clutch", step on the brake pedal, and after stopping the shift, place the shift lever in neutral. In case of emergency stop, you should quickly brake a few feet at the same time, then “brake†and “clutch†pedals are pressed at the same time. After safe stop, put the shift lever in the neutral position. (from Shan)
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