Bitzer 4NC piston kit is the main part of the engine to complete the energy conversion. In the power stroke, the heat energy generated by the fuel combustion is converted into the rotary motion of the crankshaft through the reciprocating motion of the piston, and the external power is output. In the other three strokes, the crankshaft drives the piston to reciprocate up and down through the connecting rod, mainly by the body group , piston connecting rod group, crankshaft flywheel group. Bitzer 4NC piston kit often works under high temperature, high pressure and high speed. With the increase of mileage, its technical condition is constantly changing, and the piston is often worn, ablated or damaged; the elasticity of the piston ring is reduced or broken; the connecting rod Bending and twisting; crankshaft bending and twisting deformation or cracks; excessive bearing clearance, etc. Therefore, it has always been highly valued in engine maintenance operations.

Bitzer 4NC piston kit is mainly composed of piston, piston ring, connecting rod and connecting rod bearing. In the second-level scheduled maintenance, the maintenance operation of cleaning and inspection of the piston connecting rod group should be carried out. When the wear of the cylinder reaches a certain level, the piston ring should be replaced in combination with the maintenance operation.
Cleaning the Bitzer 4NC piston kit
Soak the Bitzer 4NC piston kit in gasoline or kerosene, and use a brush to clean the oil and carbon deposits on its surface. If the carbon deposit on the top of the piston is thick and difficult to brush off, it can be gently scraped off with a shovel or scraper, but care should be taken not to scratch the top of the piston. When removing the carbon deposits in the piston ring groove, you can rotate the piston ring while brushing with a brush until the carbon deposits on the ring and the ring groove are clean and the ring rotates flexibly in the ring groove. If there is too much carbon in the ring groove and it is not easy to clean, use the piston ring expander to remove the piston ring, and use the ring groove cleaning tool or the broken old ring to scrape the carbon deposit in the ring groove, and also pay attention not to damage it Ring groove.