How to drain the water tank of the diesel generator. Generator manufacturers believe that because the external ambient temperature is too low, the cooling water should be discharged after 15 minutes of shutdown when the water temperature has dropped, not immediately, otherwise the temperature difference between the fuselage and the external environment will be too important. , causing the diesel generator to fail. Some parts of the unit are deformed, which in turn affects the performance of the diesel engine (such as cylinder head deformation, etc.). When the cooling water stops flowing, it is best to shake the diesel generator several times. At that time, the remaining cooling water that does not flow easily will flow out due to the vibration of the diesel engine. can prevent the water on the cylinder head from freezing. If it falls, cooling water will flow into the engine oil pan. The operator must also notter that if the water drain switch is not removed, the water drain switch must be in the open state after water draining is completed to avoid cooling water The remaining water cannot temporarily flow for various reasons and freezes. the corresponding parts of the diesel engine. Generator manufacturers remind users not to activate the water release switch and everything will be fine when releasing the water. They also need to pay attention to the specific water flow conditions to see if the water flow is steady and whether it is getting smaller. or faster and slower. If these conditions occur, it means that the cooling water contains impurities that hinder the normal flow of water. At this point, it is best to remove the water drain switch and let the cooling water flow directly from the body. If the water flow is still not regular, uUse hard, thin steel objects such as wire to dredge it until the water flow is steady.
Possible reasons why the water temperature increases after replacing the generator and tensioner pulley of the BMW 520 are:
1. Hydraulic fluid level is insufficient or incorrectly placed during application. hydraulic fluid. This causes bubbles to appear inside the cooling system, blocking the flow of coolant and causing the water temperature to rise.
2. The replaced generator and tensioner are inappropriate, causing the rotational speed to be mismatched. Incorrect adjustment of the rotation speed will reduce the operating efficiency of the generator and tensioner, increase energy consumption and ultimately lead to an increase in water temperature.
3. When replacing the generatort of the tensioner, the original cooling system may be damaged, such as water pump, loose gasket, etc. This will cause the water temperature to increase.
4. The replaced tensioner may be larger than the original one. When it tightens the belt, it will increase power loss, generate more heat and increase the water temperature.
5. An engine radiator failure, such as a blocked radiator or coolant leak, can also cause an increase in water temperature.
Therefore, in order to accurately locate the problem, it is best to send the vehicle to a professional auto repair shop or dealership for inspection and repair.