The hydraulic cylinder is an important part of the hydraulic system. Every problem encountered in the course of use will bring different troubles to everyone. Let’s talk about the solution today.
There are several ways to deal with hydraulic cylinder oil leakage:
(1) The valve core is stuck or the valve hole is blocked.
When the flow valve or directional valve spool is stuck or the valve hole is blocked, the hydraulic cylinder is prone to malfunction or malfunction.
Remedy: Check the contamination of the oil at this time; check whether dirt or colloidal deposits are stuck in the valve core or block the valve hole; check the wear of the valve body.
(2) The cylinder rod and the cylinder are stuck or the hydraulic cylinder is blocked.
At this time, no matter how you manipulate it, the hydraulic cylinder does not move or moves slightly.
Solution: Check whether the piston and cylinder rod seal are too tight at this time, whether dirt and colloidal deposits have entered: Whether the axis line of the cylinder rod and the cylinder barrel is aligned, and whether the wearing parts and seals are invalid.
Related reading: 19 causes of hydraulic cylinder crawling and corresponding troubleshooting methods
(3) The control pressure of the hydraulic system is too low.
The throttling resistance in the control pipeline may be too large, the flow valve is improperly adjusted, the control pressure is inappropriate, and the pressure source is disturbed.
Solution: Check the control pressure source at this time to ensure that the pressure is adjusted to the specified value of the system.
(4) Air enters the hydraulic system.
Mainly because there are leaks in the system.
Solution: Check the liquid level of the hydraulic oil tank, the seals and pipe joints on the suction side of the hydraulic pump, and the oil suction coarse filter for dirty.
Hydraulic oil tank level gauge
If so, hydraulic oil should be added, seals and pipe joints should be treated, and the coarse filter element should be cleaned or replaced.
(5) The initial movement of the hydraulic cylinder is slow.
In the case of low temperature, the hydraulic oil has high viscosity and poor fluidity, which causes the hydraulic cylinder to move slowly.
Solution: Replace hydraulic oil with better viscosity and temperature performance. At low temperatures, use a heater or use the machine to heat it to increase the oil temperature at startup.
If you have any further questions about hydraulic cylinders, please contact email: [email protected] or contact us.