The method of judging whether the cylinder head is burnt is: turning off the diesel engine, waiting for a while, then restarting the diesel engine and increasing the speed. If the cylinder head is burned by the high temperature gas, the high pressure gas will rush into the cooling system to make the coolant roll and boil. The method of checking the thermostat is to remove the thermostat, suspend it in a container filled with warm water, and place a thermometer in the water, then heat it from the bottom of the container to observe that the thermostat valve starts to open and If the water temperature is completely turned on, if the above requirements are not met or there is obvious damage, the thermostat should be replaced immediately.ħ. When the thermostat is working at about 85 degrees, the valve starts to open, and the valve is fully opened at about 105 degrees. The function of the thermostat is to control the size cycle of the cooling system. The pump itself is damaged, the rotation speed is too low, the scale in the pump body is excessively deposited, and the narrowing of the passage will make the flow rate of the coolant smaller, the heat dissipation performance is lowered, and the temperature of the diesel engine oil is increased.Ħ. If the angle is too small, the air supply strength will be insufficient.ĥ. When the fan blade is deformed, it can be compared with the new blade of the same specification to see if the angle between the blade and the relative rotation plane becomes smaller. If the rubber layer is aged, damaged or the fiber layer is broken, it should be replaced. If the tape is too loose, it should be adjusted. If the fan tape is too loose, it will slip, causing the fan speed to be too low and the air supply effect to be weakened. The fan speed is too low and the blade is deformed or reversed. At this time, the surface thermometer can be used to measure the temperature at the water temperature sensor, and it is observed whether the water temperature gauge indicates the actual temperature.Ĥ. Including the water temperature sensor is damaged the line is ironed or the indicator is out of order, resulting in false alarm. The water temperature gauge or warning light is incorrectly indicated. If the water is heated and put into the cleaning solution, sneeze, the effect is better.ģ. At this point, use a thin steel sheet to carefully return the heat sink to its original position, restore the flat shape of the heat sink, and then use compressed air or a water gun to clean it. Especially when the surface of the water radiator is contaminated with organic oil, the thermal conductivity of the sludge mixture formed by the dust and the oil is smaller than that of the scale, which seriously hinders the heat dissipation effect. For example, the heat sink of the water radiator has a large area of lodging, and there are oil and mud debris between the heat sinks, which will prevent the heat from being emitted. To raise the temperature of the coolant.Ģ. If the cooling system is not removed, or the coolant is not replenished in time, the cooling performance will be degraded. The antifreeze can ensure its high boiling point and reduce the scale generated by the cooling system. The diesel engine used in construction machinery generally has a higher working temperature. Improper use of coolant or insufficient water.
#Normal coolant temp generator#
The water temperature of the diesel generator set is preferably around 80°, and the maximum temperature cannot exceed 95°! Remember not to let the temperature be too high or too low, it will cause damage to the generator set. Diesel engines are prone to cylinder accidents at 100 ° water temperature and high temperature, so diesel generators should stop working or reduce the load when the coolant exceeds 95 °. The coolant of the diesel generator rises rapidly during such high temperature seasons. Summer temperatures are high and temperatures are more unusual this summer. When using a diesel generator in winter, it is better to ensure that the water temperature is around 80° when preparing the power transmission load. When the diesel engine reaches the maximum effective power, the temperature of the coolant should be about 80°. Therefore, the temperature of the diesel generator coolant will rise slowly. The winter temperature is low, the diesel generator ambient temperature is low, and the coolant temperature is also low.
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