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Causes and solutions for high water temperature of internal combustion forklifts

by:Staxx Pallet Truck     2021-12-02
The driver knows that sometimes, especially in summer, when the water tank of the internal combustion forklift is very hot, it must be stopped. This affects the forklift's work, and in severe cases, it will damage the parts. What are the reasons for the internal combustion lithium pallet truck water tank? What about the high temperature? How to solve it?    Reasons for the high water temperature of the forklift There are many reasons for the high water temperature: temperature control switches, pumps, sub-fans, rusted water pipes, poor return water and other factors can cause such knots. The engine water temperature is mainly related to whether the thermostat is working normally, whether the water pump can build up enough pressure, and whether the cooling fan can reach the standard speed. How to check if the water temperature of the lithium pallet truck is abnormal? The cooling system is generally composed of cooling fans, radiators, thermostats and other components. The cooling fan is often driven directly by the engine, and the fan speed is consistent with the engine speed. The control of the cooling water temperature mainly relies on the thermostat. The principle of thermostat The thermostat is also called thermostat. Its function is to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, and to change the water circulation range to adjust the heat dissipation capacity of the cooling system to ensure that the engine is at a suitable temperature. Work within the scope. The thermostat must be kept in good technical condition, otherwise it will seriously affect the normal operation of the engine. If the main valve of the thermostat is opened too late, it will cause the engine to overheat; if the main valve is opened too early, the engine warm-up time will be prolonged and the engine temperature will be too low. At this time, it can be judged whether the working condition of the thermostat is in good condition. When the engine starts to run cold, if there is still cooling water flowing out of the water inlet pipe of the water tank, it means that the main valve of the thermostat cannot be closed; when the engine is cooled When the water temperature exceeds 70 degrees Celsius, there is no cooling water flowing out of the water inlet pipe of the upper water chamber of the water tank, which means that the main valve of the thermostat cannot be opened normally, and repair is required at this time. The thermostat can be inspected on the car. The method is as follows:    1. Inspection after the engine is started: Open the radiator water filler cover. If the cooling level in the radiator is static, it indicates that the thermostat is working properly, otherwise, it means that the thermostat is working properly. The thermostat is malfunctioning. 2. This is because when the water temperature is lower than 70℃, the thermostat expansion cylinder is in a contracted state, and the main valve is closed; when the water temperature is higher than 80℃, the expansion cylinder expands, the main valve gradually opens, and the circulating water in the radiator starts flow.   3. When the water temperature gauge indicates below 70℃, if there is water flowing at the water inlet pipe of the radiator and the water temperature is warm, the main valve of the thermostat at the time of the watch is not closed tightly, causing the cooling water to circulate prematurely.   Fourth, the inspection after the water temperature rises: At the beginning of the engine operation, the water temperature is thousands of quickly; when the water temperature gauge indicates 80, the heating rate slows down, indicating that the thermostat is working normally. On the contrary, if the water temperature has been rising rapidly, when the internal pressure reaches a certain level, the boiling water suddenly overflows, which indicates that the main valve is stuck and suddenly opened. 5. When the water temperature gauge indicates 70℃-80℃, open the radiator cover and the radiator water release switch, and feel the water temperature with your hands. If all are hot, the thermostat is working normally; if the water temperature at the water inlet of the radiator is low and the radiator There is no or little water flowing out of the water inlet pipe of the upper water chamber, indicating that the main valve of the thermostat cannot be opened.
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