The running-in period of the tractor is similar to the warm-up exercise of the athlete before the competition. The purpose is to adjust the ability of the various parts of the body to adapt to the environment. The merits of tractor running-in will have an important impact on the life, safety and economy of the tractor. It cannot be underestimated. Do inspection and maintenance, improve the quality of running-in should pay attention to the following aspects. The mileage of vehicles that run for 1,500 kilometers during the run-in period should not be less than 1,500 kilometers. This is the basic mileage that ensures full contact, friction, adaptation, and finalization of the machine parts. Do not run too fast to strictly enforce the driving damage regulations, first, to avoid full throttle; the second is to maintain the normal operating temperature of the engine. Must not practice driving skills at this time, rush to rush. The speed of the vehicle should be controlled within the provisions of the regulations. New cars and overhauled vehicles are equipped with a speed limiter and must not be dismantled at will. It is not advisable for light-loaded new cars to be loaded, the carrying rate should be less than 90%, and flat roads should be chosen. Slow start, slow stop (a) start warm-up first, brake separation. Avoid emergency braking as much as possible, otherwise not only will the braking system in running-in be severely damaged, but it will also increase the impact load of the chassis on the engine. (b) It is necessary to state that the practice of "taking off the brake first" is a measure taken to protect the engine during the unusual period of time (in emergency braking). Can not be used as a long-term good habits, when the vehicle through the "care" period, from the clutch maintenance aspect, it should be "first away from the brakes", there are many novices in learning the car, because of fear of flameout, never forget to pedal To decelerate, first step on the clutch, even if it is hung upscale or low-grade, but also to facilitate the shift, the clutch does not leave the foot. This brake, shift, for novice may make the car to open more smoothly, but it will cause no small damage to the clutch. (3) There are people who are accustomed to parking in the park, hanging a gear and stepping on the clutch, or picking up the neutral gear and stepping on the clutch, thinking that this can simplify the starting action. However, this habit makes the left leg always in a state of exertion, unable to relax, easily causing the driver to fatigue, and more seriously, causing the clutch to wear for a long time. The gears in the gear shifting and normal running should be gradually moved in order to start at the lowest gear, gradually increase the high gear, and must not use the high-speed low-speed driving, or the low-speed high-speed driving. And shift gear, do not use a stall for a long time. Pay attention to the operating conditions and temperature changes of the engine, transmission, and drive axle during the process of driving. During the running-in period, the running-in period can only be entered after the inspection and maintenance. The maintenance contents are as follows: Check and adjust the tension of the fan and the water pump drive belt; Check and adjust the tension of the camshaft timing belt; Adjust the valve clearance; Check the engine cylinder head screw Birch tightness; replace engine oil filter; replace engine oil; add radiator coolant; adjust ignition timing; remove air filter dust; adjust idle and idle mixer pedal clearance; check brake fluid volume , see if there is any leakage; adjust the brake pedal stroke; check the hand brake rod and cable travel; check and fasten the wheel and hub nut connection; check the transmission and differential oil; check the other key mother tightening torque; The tightness of the steering clearance and the leakage of the lubricating oil, and whether the free travel of the steering wheel is appropriate.