Dalan hydraulic system tells you the common causes of hydraulic cylinder failure

The general five reasons why the Dalan hydraulic system tells you that the Hydraulic Cylinder is malfunctioning are as follows: The common five reasons why the Dalan hydraulic system tells you that the hydraulic cylinder is malfunctioning are as follows:

1. The hydraulic system control pressure is too low;

2. The throttling resistance in the control pipeline may be too large, the flow valve is improperly adjusted, the control pressure is not suitable, and the pressure source is disturbed;

3. 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;

4. The piston rod is stuck with the cylinder or the hydraulic cylinder is blocked;

5. Enter the air in the hydraulic system.

The maintenance method corresponding to the failure of the hydraulic cylinder is as follows:

1. The hydraulic system control pressure is too low. At this time, the control pressure source should be checked to ensure that the pressure is adjusted to the specified value of the system;

2. The throttling resistance in the control pipeline may be too large, the flow valve is improperly adjusted, the control pressure is not suitable, and the pressure source is disturbed;

3. 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;

At this point, you should check the contamination of the oil, check whether the dirt or colloidal deposits are stuck in the valve core or block the valve hole, and check the wear of the valve body;

4. The piston rod is stuck with the cylinder tube or the hydraulic cylinder is blocked. At this time, no matter how the operation is performed, the hydraulic cylinder does not move or the action is slight;

At this time, check whether the piston and piston rod seal are too tight, whether it enters the dirt and colloidal deposit: whether the shaft line of the piston rod and the cylinder is centered, and whether the wearing parts and seals are invalid.

5. There is residual air in the hydraulic cylinder.

Repair measures: make the moving parts move freely and reciprocate for 20-30min, fully eliminate the air.







----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant

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