The hot summer weather is also a busy season for tractors. If you use it improperly, it is prone to failure and delays farming. To ensure that the tractor is safe in summer, the following should be noted:
One must be cautious in dealing with "cooking." The correct way to deal with this problem is to allow the engine to run at an intermediate speed, open the radiator cover, and release hot air. After cooling, slowly add cold water. When you open the radiator cover, you should stand in the upwind position, do not face the water inlet, so as not to be burned by the high-temperature water spray.
Second, keep the cooling system clean. Before the arrival of the summer, the cooling system must be thoroughly cleaned and cleaned to ensure that the water pump and the radiator hoses are kept open to ensure the normal circulation of the cooling water. In addition, weeds and other objects that adhere to the surface of the heat sink should be promptly removed. Remove scale from water tanks, water jackets, and radiators, and keep the outside of the radiator clean.
Third, add cooling water in a timely manner. In summer, cooling water evaporates quickly. If the water tank is opened, do not add cooling water immediately to avoid burning the engine. It is necessary to idling at a low speed for a while at a low speed. After the water temperature is lowered, cooling water is added. To prevent water leakage, the cooling system leaks occur at the water pump bushings. At this time, the water seal compression nut is properly tightened. If it is invalid, it indicates that the packing has failed and should be replaced in time. Filler can be wound with graphite powder coated asbestos rope.
Fourth, pay attention to the tension of the belt. The fan belt is loose and slipping, which causes the speed of the fan and the water pump to fall, and the wind power is insufficient. If the fan belt is too tight, the bearing load is too large, which leads to increased wear and increased power consumption. The engine should be inspected before starting: when pressing with the thumb in the middle of the belt, the amount of belt sag should be 10 to 15 mm. Too loose or too tight should be adjusted in time.
Fifth, the correct use of thermostats. Thermostats are available in both automatic (eg thermostat) and manual (eg thermal screens and blinds). Some drivers think that the sky is hot in summer, and the lower the water temperature, the better, and often remove the thermostat. In doing so, when the cold car starts, it will greatly prolong the warm-up time of the engine and accelerate the wear of the parts. Therefore, the thermostat should not be removed during the summer. The insulation curtains and shutters are used to adjust the amount of air passing through the radiator. In general, no curtains are needed in summer, and blinds should be placed in their fully open position.
Sixth, it is necessary to choose oils correctly. In summer, the temperature is high, diesel oil with a higher freezing point can be used, and the correctness of the fuel feeding angle should be ensured. In addition, special attention should also be given to preventing oil spills from the oil supply system, as oil spills not only cause waste but can also cause fires. In addition to diesel, lubricants and greases should also be selected for use in summer.
Seventh, pay attention to the maintenance of the battery. The electrolyte in the storage battery is easy to evaporate in summer. It is necessary to inspect once every 5-10 days to keep the liquid level 10-15 mm above the plate. The vent hole on the filler cap should be dredge-free, and should not be blocked. The temporarily unused battery should be stored in a cool, ventilated place.
Eight to prevent the engine from deflagrating. The deflagration of the engine due to overheating will increase the wear on the upper part of the cylinder by 3 to 5 times: Therefore, it is necessary to thoroughly remove the carbon deposits in the combustion chamber, the front of the valve, etc., and check the adjustment of the amount of fuel supply and the time of fuel supply for explosion-proof combustion.
Nine to prevent oil and gas resistance. The higher the temperature is, the faster the evaporation will be, and the easier it will be to form a gas barrier in the oil circuit. Therefore, in the summer, the fuel filter should be cleaned in a timely manner to keep the oil path open; a wet cloth can be placed on the fuel pump during driving, and watering can be done regularly to keep it moist and reduce the generation of air resistance. Once the fuel has generated air resistance from the system, it should immediately stop cooling, and use the hand pump to fill the oil in the oil circuit.
Ten explosion-proof tires. In summer, the tire pressure should be lower than the standard air pressure by 2% to 3%. After parking, the tractor should be shaded to prevent aging and deterioration of tires after the sun exposure.
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