How to replace diesel generator coolant? Today, the editor of Yanan Motor takes you to discover it? The coolant should be changed every two years or every 4,500 hours. There are two reasons for this: first, to avoid reducing cooling performance due to precipitation in the cooling system; secondly, when the coolant has not been replaced for a long time, rust will reduce the effective performance of the coolant and cause water infiltration. the temperature sensor fails. When replacing the coolant, the system must first be flushed with clean water. When cleaning, be sure to wait until the rinsed water is very clean. (Yanan Group: R&D and production of diesel generator sets and fuel cells)
When discharging the coolant, make sure the unit isoff and the body is completely cooled before opening the water tank filling cover, then open the cylinder block and the heat dissipation drain plug or the drain valve under the unit. If the unit is equipped with a coolant filter (some models), the filter must be removed and replaced.
The temperature of the cooling water is relatively high
(1) It is generally caused by the accumulation of dust on the radiator outside the water tank cooling. In case of heavy dust, debris on the outer surface of the radiator or during operation of the device will be sucked into the water tank by the cooling fan, causing blockage, blocking ventilation and resulting in poor heat dissipation. heat. At this point you just need to clean the radiator outside the water tank and clean the debris from the unitto resolve the problem.
(2) After being used for a long time, the generator cooling fan connection belt will gradually age and become easily broken or inelastic, resulting in abnormal blowing capacity. At this point it is necessary to replace the damaged belt. When replacing, all belts should be replaced together instead of just one.
(3) The coolant content is very low. It is necessary to check the factors causing the lack of cooling water. Check the tightness of the cooling water tank and each cooling water pipe. In the event of a leak, it must be repaired immediately. Then add enough coolant.
(4) The use of a coolant that does not meet the requirements causes the accumulation of scale, rust and other substances.in the cooling water pipes, which impedes the circulation of cooling water and causes an increase in water temperature. Coolant is usually water and antifreeze or water and anti-rust fluid. The pH value of water should be between 6.0 and 8.02_, and pure water is generally used. For cooling systems that have been seriously deposited and clogged, it is best to add 0.5L of detergent for every 7L of cooling system volume, mix it with clean water, start the machine and run it for 90 rain, circulate cooling water to clean. then use clean water to circulate it Xian to prevent the cleaning agent remaining in the pipe from causing pipe corrosion.