1. The metal of the SMC pneumatic cylinder piston rings sounded. After the engine has been worn for a long time, the pneumatic cylinder wall is worn, but places where the upper part of the pneumatic cylinder wall cannot contact the piston ring almost maintains the original geometric shape and size, which makes the pneumatic cylinder wall generate a step. If the old pneumatic cylinder pad or the replaced new pneumatic cylinder pad is thin, the piston ring in the work will collide with the steps of the pneumatic cylinder wall, making a dull metal toll -up sound. If the engine speed rises, the abnormal noise will increase. In addition, if the piston ring is broken or the piston rings are too loud and the ring grooves are too large, it will also cause a greater knockout sound.
2. The leakage sound of the piston ring. Pistons have weakened elasticity, excessive gap between the opening or overlap, and the trench wall of the pneumatic cylinder wall will cause the piston ring to miss the air. Its sound is a kind of drinking or hissing sound, and the sound of the sound when it is severely leaked. The diagnostic method is to turn off when the engine water temperature reaches 80 ° C. If you inject a little fresh and clean oil into the SMC pneumatic cylinder, shake the crankshaft for several laps, and restart the engine. , Can be dependent as the piston loop leakage. Follow: Car testing and maintenance major.
3. The abnormal sound of excessive carbon accumulation. When there is too much carbon accumulation, the abnormal noise in the pneumatic cylinder is a sharp sound. Because the carbon accumulation is burned red, the engine has a little cold symptoms, and it is not easy to turn off. The formation of carbon accumulation in the piston ring is mainly due to the fact that the piston ring and the wall of the pneumatic cylinder are not tightly sealed, the open space is too large, the piston ring is reversed, and the ring is overlapped, which causes lubricating oil to go up. The ring position was burned, causing the formation of carbon deposits or even sticking to the piston ring, causing the piston ring to lose its elasticity and sealing effect. Generally, after replacing the proper piston ring, this failure can be excluded.
4. Knock the pneumatic cylinder sound. The SMC pneumatic cylinder knocks on the pneumatic cylinder(Made by China Aluminium Tube Profiles), refers to the moment when the piston starts at the beginning of the work trip, or when the piston is upward, the piston swinging in the pneumatic cylinder, its head and skirt and pneumatic cylinder wall collide sound. If it is a sound of the sound, mostly caused by the poor lubrication of the pneumatic cylinder wall. At this time, you can drip a little oil into the pneumatic cylinder, and then start the SMC pneumatic cylinder. If the abnormal noise is reduced or disappeared, it means that the abnormal noise is indeed due to poor lubrication. If it is a sound, and the exhaust pipes are rolling in blue smoke at the same time, it is generally due to the excessive gap between the piston and the pneumatic cylinder wall (Autoair is Air Cylinder Barrel Supplier).
Post time: Apr-01-2023