How to Use a Tractor in Summer

In summer, the temperature is high, and when tractors operate in high-temperature environments, special attention should be paid to the following issues.
1. Handle "boiling" cautiously When the cooling water "boils," handle it carefully. The correct method is: run the engine at medium speed, open the radiator cap to release hot steam, wait for it to cool down, then slowly add cold water. When opening the radiator cap, the operator should stand upwind and avoid facing the water inlet to prevent burns from the sprayed hot steam.
2. Keep the cooling system clean Before summer arrives, thoroughly descale and clean the cooling system to ensure the water pump and radiator pipes are unobstructed, guaranteeing normal circulation of the cooling water. Additionally, promptly remove any grass or debris attached to the radiator surface.
3. Prevent water leaks Water leaks in the cooling system often occur at the water pump shaft sleeve. At this time, tighten the water seal pressing nut appropriately. If ineffective, it indicates the packing has failed and should be replaced promptly. The packing can be made by winding asbestos rope coated with graphite powder.
4. Pay attention to belt tension If the fan belt is too loose, it slips easily, causing the fan and water pump speeds to drop and insufficient airflow; if the fan belt is too tight, the bearing load increases, accelerating wear and increasing power consumption. Generally, when pressing the middle of the belt with the thumb, the belt should deflect between 10mm and 15mm. Adjust promptly if too loose or too tight.
5. Correct use of the temperature control device There are two types of temperature control devices: automatic (such as thermostats) and manual (such as insulation curtains and louvers). Some drivers think that the lower the water temperature in summer, the better, and often remove the thermostat. Doing so greatly prolongs engine warm-up time when starting a cold engine and accelerates part wear. Therefore, the thermostat should not be removed in summer. Insulation curtains and louvers regulate the airflow through the radiator. Generally, insulation curtains are not needed in summer, and louvers should be fully open.
6. Correct selection of fuel In high summer temperatures, diesel with a higher pour point can be used, and the fuel injection advance angle must be correct. Additionally, special attention should be paid to preventing fuel system leaks, as leaks not only waste fuel but may also cause fires. Besides diesel, lubricating oil and grease should be selected according to the specified summer grades. Some tractors have an oil temperature directional valve; during seasonal maintenance, this valve should be switched to direct oil to the oil cooler.
7. Pay attention to battery maintenance In summer, water in the battery electrolyte evaporates easily, so special attention should be paid to checking the battery fluid level. The normal fluid level should be 10mm to 15mm above the plates. The electrolyte density should be adjusted lower as specified. The vent holes on the filler cap should be kept clear. Batteries not in use temporarily should be stored in a cool, ventilated place.
8. Prevent fuel vapor lock The higher the temperature, the faster evaporation occurs, making vapor lock more likely in the fuel line. Therefore, in summer, fuel filters should be cleaned promptly to keep the fuel line unobstructed; during driving, a wet cloth can be placed over the fuel pump and watered regularly to keep it moist and reduce vapor lock. If vapor lock occurs, stop immediately to cool down and use the hand fuel pump to fill the fuel line with fuel.
9. Prevent engine knocking Engine knocking caused by overheating increases wear on the upper part of the cylinder by 3 to 5 times. Therefore, thoroughly remove carbon deposits from the combustion chamber, valve heads, etc.; check and adjust fuel quantity and timing to prevent knocking.