In the rental and repair of used Cummins generators
, it is often necessary to clean the oil, carbon, scale and rust on the surface of the parts. Due to the different nature of various dirt, its removal method is also different.
(1) Oil stain cleaning
If the oil deposit on the part surface is thick, it should be scraped off first. Dongguan Cummins generator
second-hand generator rental cleaning parts method, generally cleaning the surface of the parts oil, commonly used cleaning fluids are alkaline cleaning fluids and synthetic detergents. When using alkaline cleaning solution for hot cleaning, heat to 70 ~ 90 ℃, immerse the parts for 10 ~ 15min, then take out and rinse with water, then blow dry with compressed air.
Note: It is not safe to clean with gasoline; aluminum alloy parts cannot be cleaned in strong alkaline cleaning solution; non-metallic rubber parts should be cleaned with alcohol or brake fluid.
(2) carbon deposition removal
Coking can be removed using simple mechanical removal methods. That is to remove with a metal brush or scraper, but this method is not easy to remove the deposited carbon, and it is easy to damage the surface of the part. It is best to use a chemical method to remove the carbon deposits, that is, first use a carbon removal agent (chemical solution) to heat to 80 ~ 90 ° C to expand and soften the carbon deposits on the parts, and then use a brush to remove them.
(3) Removal of scale
Dongguan Cummins generator
second-hand generator rental cleaning generally uses the chemical removal method, the chemical solution to remove scale is added to the coolant, after the engine works for a certain period of time, the coolant is replaced. Chemical solutions commonly used to remove scale include caustic soda solution or hydrochloric acid solution, sodium fluoride hydrochloric acid descaling agent, and phosphoric acid descaling agent. Phosphoric acid descaling agent is suitable for removing scale from aluminum alloy parts. http://ftfan.cn/