Precautions For Using Tractors in Summer

The temperature is high in summer, and the tractor should pay special attention to the following issues when working in a high-temperature environment.
1. Be careful when "boiling" the cooling water. The correct method is to run the engine at medium speed, open the radiator cover, release the hot air, and then slowly add cold water after cooling down. When opening the radiator cover, the operator should stand upwind and not face the water filling port to avoid being burned by the high-temperature water vapor sprayed out.
2. Keep the cooling system clean. Before the arrival of summer, the cooling system should be thoroughly descaled and cleaned to keep the water pump and radiator water pipes smooth and ensure the normal circulation of cooling water. In addition, weeds and other objects attached to the surface of the radiator should be removed in time.
3. Prevent water leakage. Water leakage in the cooling system often occurs at the water pump shaft sleeve. At this time, tighten the water seal compression nut appropriately. If it is invalid, it means that the packing has failed and should be replaced in time. The filler can be made of asbestos rope coated with graphite powder.
4. Pay attention to the tension of the belt. If the fan belt is too loose, it will slip easily, which will reduce the speed of the fan and water pump and cause insufficient wind power. If the fan belt is too tight, the bearing load will be too large, which will intensify wear and increase power consumption. The general requirement is: when pressing the middle of the belt with your thumb, the belt sag should be within the range of 10 mm to 15 mm. If it is too loose or too tight, it should be adjusted in time.
5. Correct use of thermostats There are two types of thermostats: automatic (such as thermostat) and manual (such as thermal curtains and blinds). Some drivers think that it is hot in summer and the lower the water temperature, the better, so they often remove the thermostat. Doing so will greatly extend the engine's warm-up time and accelerate the wear of parts when starting a cold car. Therefore, the thermostat should not be removed in summer. Thermal curtains and blinds are used to regulate the amount of air flowing through the radiator. In summer, thermal insulation curtains generally do not need to be used, and blinds should also be placed in the fully open position.
6. Correct selection of oil: The temperature in summer is high, so diesel with a higher freezing point can be used, and the accuracy of the oil supply advance angle must be ensured. In addition, special attention should be paid to preventing oil leakage in the oil supply system, because oil leakage not only causes a waste of oil, but may also cause a fire. In addition to diesel, lubricating oil and grease should also be selected for summer use in accordance with regulations. Some tractors have an oil temperature reversing valve. During seasonal maintenance, the reversing valve should be turned to the position where the oil flows to the oil radiator.
7. Pay attention to battery maintenance In summer, the water in the battery electrolyte evaporates easily, so special attention should be paid to checking the battery liquid level. The normal liquid level should be 10 mm - 15 mm higher than the plate. The electrolyte density of the battery should be reduced as required. The ventilation holes on the filler cap should be unclogged as often as possible. Batteries that are not used temporarily should be stored in a cool and ventilated place.
8. The higher the temperature of the anti-fuel vapor blockage, the faster it evaporates, and the easier it is to form a vapor blockage in the oil circuit. Therefore, the fuel filter should be cleaned in time in summer to keep the oil circuit smooth; when driving, you can cover the fuel pump with a wet cloth and spray water regularly to keep it moist and reduce the occurrence of air lock. Once air lock occurs in the fuel system, stop the vehicle immediately to cool down, and use a hand oil pump to fill the oil line with fuel.
9. Prevent engine deflagration. Engine deflagration due to overheating will increase the wear on the upper part of the cylinder by 3 to 5 times. Therefore, it is necessary to completely remove the carbon deposits in the combustion chamber, valve head, etc.; check and adjust the fuel supply amount and time to prevent deflagration.