What are the reasons for the cylinder not moving?
3 Answers
Hydraulic cylinder failure to move can be attributed to the following reasons: 1. Sealing: Inadequate sealing of the hydraulic cylinder leads to hydraulic oil leakage, resulting in insufficient internal pressure to overcome the external pressure on the cylinder's piston, causing it to remain stationary. 2. Pressure: Internal leakage in the hydraulic oil pump supplying oil to the cylinder results in insufficient pressure within the cylinder. 3. Oil: Absence of hydraulic oil inside the cylinder. 4. Air: Residual air trapped inside the hydraulic cylinder not being completely purged, leading to unstable cylinder movement.
I've been driving for over 30 years and have encountered non-functioning hydraulic cylinders quite a few times. Common causes include insufficient hydraulic oil or oil leakage, which affects pressure transmission; a broken oil pump leading to interrupted oil supply; clogged oil lines or filters preventing oil flow; control valve malfunctions such as being stuck in the closed position; air entering the system forming bubbles that obstruct flow; or internal seals of the cylinder aging or mechanical jams causing complete immobility. During inspection, first use the oil dipstick to check the oil level, listen to whether the pump's rotation sound is normal, and briefly inspect oil pipes for any cracks or leaks. Safety first—don't push your luck, quickly find a reliable repair shop for a comprehensive check to avoid accidents. I usually recommend checking oil levels and pipeline conditions regularly to extend the lifespan of components.
As an ordinary person who drives frequently, I've encountered the issue of the oil cylinder not moving several times. The possible reasons can be briefly summarized as: insufficient hydraulic oil or leaks, such as loose hose connections causing slow leaks; worn-out oil pump lacking power, unable to build sufficient pressure; clogged oil passages due to accumulated impurities blocking the flow; valves not responding to control signals; or air in the system requiring bleeding. When encountering such issues, I can try visually inspecting for oil leaks or using tools to measure oil pressure, but avoid taking blind actions to prevent equipment damage. It's safer to stop the vehicle immediately and contact professional repair services to avoid delaying the trip. Developing a habit of checking the oil level monthly can greatly prevent such failures.
