Tractor thermostat inspection

Failure of the tractor's thermostat will cause the engine to overheat or undercool, which may accelerate the engine wear and cause mechanical failure. Therefore, it should be checked in time:

1. Check when the engine is just starting.

    Open the tank cover. If the cooling water in the tank is stationary, the thermostat is working properly. This is because the main valve of the thermostat is closed when the temperature of the cooling water is lower than 70 degrees. At this time, the cooling water only performs a small cycle inside the engine, and the cooling water in the water tank does not participate in the circulation and does not flow statically. The water in the tank begins to participate in the cycle only when the water temperature is above 80 degrees. If it is below 70 degrees, there is water flowing in the inlet pipe of the water tank and the water temperature is slightly hot, indicating that the main valve is not closed and the thermostat is faulty.

2. Check after the cooling water rises.

    At the beginning of the engine operation, the water temperature rises rapidly. When the water temperature rises to 80 degrees, the water temperature rises slowly, indicating that the thermostat is working normally. On the contrary, the water temperature has risen rapidly until boiling, indicating that the main valve of the thermostat is stuck and cannot be opened. It should be repaired in time to avoid other malfunctions.

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