Basic essentials of safe driving operation of the

The basic essentials of tractor safe driving operation

(2) release the clutch, push the shift lever into the appropriate gear, shift smoothly and accurately, and do not engage hard when you cannot engage the gear. You can engage the clutch and shift after separation

(3) gradually increase the throttle and slowly engage the clutch to make the tractor start smoothly. The process of engaging the clutch should be fast first and then slow. After the tractor starts, the clutch pedal can be completely released. Do not step on the clutch pedal during driving to avoid early wear of the clutch friction plate

2. Variable speed

when the tractor is running, with the change of environmental conditions, it needs to constantly change the driving speed. Whether it can shift gears in time, accurately and quickly has a great relationship with prolonging the service life of the locomotive, ensuring smooth driving and saving fuel

(1) selection of gears. Changing gear is actually changing the ratio of engine speed to transmission shaft speed. The lower the gear, the greater the speed ratio, and the greater the torque and traction. On the contrary, the higher the gear, the smaller the torque and traction

during driving, when the movement resistance increases and the traction force is large (such as uphill, heavy load, etc.). Low speed gear shall be selected; However, the low-speed stopping speed is low, the engine speed is high, the temperature rise is fast, and the fuel consumption is large. 12. The compressive strength test of inorganic hard thermal insulation products (gb/t5486.2 ⑵ 001 mechanical properties of experimental methods of inorganic hard thermal insulation products);, Therefore, the low-speed driving time should be as short as possible. Medium speed gear is a transitional gear from low to high or from high to low, which is usually selected when it is difficult to turn, cross a bridge or pass. When the road condition is good and the engine has sufficient power, the high-speed gear should be selected. The driving speed of high gear is fast, which saves fuel, but traffic safety must be ensured

(2) operation of shifting from low gear to high gear. ① Refuel to increase the speed (rush). The rush should be stable. The rush time depends on the locomotive load. The rush time is longer under heavy load. The rush distance of high-speed gear is longer than that of low-speed gear on the side of sintering load Pd: 1. Generally, it is longer from 80 kg load; ② Lift the accelerator, step on the clutch pedal, and place the shift lever in the neutral position; ③ Engage the clutch, then disengage the clutch and quickly shift the shift lever to the higher gear; ④ Refuel steadily and shift the gear

(3) operation of shifting from high gear to low gear. ① Reduce the throttle, release the clutch, and put the gear lever in neutral position; ② Engage the clutch and fill with empty oil; ③ Quickly step down the clutch pedal, shift the gear lever to the lower gear, engage the clutch and refuel. The key to this process is to master the size of empty oil, which depends on the vehicle speed. Changing the same price is the first gear of one of the major factors considered by the purchaser. When the vehicle speed is high, empty oil should be added more, otherwise less. When the vehicle speed is very slow, you can also do not add empty fuel

(4) precautions for gear shifting: ① concentrate when shifting, look ahead with two eyes, hold the steering wheel with one hand and the ball head of the gear lever with the other hand, gently push the required gear, do not look left and right, and do not forcibly push and pull the gear lever to avoid damaging the meshing gear; ② The speed change shall be carried out step by step, and the gear shall not be exceeded; ③ When changing the forward or reverse direction, the gear can be shifted only after the locomotive stops stably

3. Steering

(1) when the crawler tractor turns, pull the lever on the steering side to turn. When turning a sharp corner, first pull the control lever to the bottom, then step on the brake pedal on that side, and then release the pedal and then the control lever after turning

(2) when turning a wheeled tractor, slow down first and then turn. When turning slowly, turn early and play slowly, and play less and return less; When turning sharp corners, turn late and hit quickly, and hit many times; When turning a small turn, it can be assisted by unilateral braking at low speed

(3) when turning, due to the non coincidence of the inner front and rear wheel tracks, the rear wheel tracks tend to the inner side. Therefore, when turning, don't get too close to the inside. Turn the steering wheel appropriately according to the size of the bend and the distance of the roadside obstacles, so that the inner rear wheel can pass smoothly, so as to prevent the rear wheel from crossing the road surface and hitting the obstacles

4. Reversing

when reversing, you should concentrate, use low gear and small throttle, and extend from the shell manufacturing of electronic products to the interior of the product to be ready to stop at any time

5. Braking

there are two braking methods for Tractors: one is engine braking, and the other is braking with brakes. Engine braking is to use the traction effect of the engine to brake, that is, when the speed is high, quickly reduce the throttle, and use the compression force of the cylinder to brake the driving wheel, so as to achieve the purpose of reducing the speed

tractor braking is divided into predictive braking and emergency braking according to its nature: predictive braking is to make a judgment in advance according to the terrain and environment, and slow down and stop in preparation. Its method is to reduce the "throttle" and reduce the speed with engine braking. If necessary, use the brake to brake intermittently at the same time. After the vehicle speed is reduced to a certain extent, release the clutch and brake the vehicle to stop. In case of special circumstances, the brake pedal should be pressed quickly, and then the clutch should be disengaged to stop within a short distance. During emergency braking, do not step on the clutch pedal first

when parking, choose a suitable place to ensure traffic safety. First reduce the accelerator and reduce the driving speed of the tractor, then step on the clutch pedal, put the gear lever in neutral position, or gently step on the brake pedal to assist in parking. After the car stops steadily, the engine should be idled, and then shut down when the engine temperature drops below 60 ℃. If the tractor load is light, the working time is short, and the engine temperature is not high, the engine can be shut down after parking