Remove the hydraulic cylinder by step, protect the work to do

Hydraulic cylinder to work after the completion of the work to be carried out, in the process of the demolition of the process of how to carry out the work, so as to prevent the hydraulic cylinder in the work, what problems, the work of maintenance, to prevent the work in the next, can not enter the work faster, and affect the work efficiency. Sometimes do not need dedicated disassembly work, and technical personnel are carried out, this is how in vain. So, in the oil pressure jack for demolition, there is a certain preparation for the demolition of the work.

First of all, to carry out the work of preparation. Hydraulic circuit discharge pressure should be removed before removing hydraulic cylinder. Otherwise, when the connection with the hydraulic cylinder oil pipe joint screw loose, the loop in the high pressure oil will quickly eject. Hydraulic circuit pressure relief valve should be the first relief valve and other places of the hand wheel or pressure adjustment screw, so that the pressure oil unloading, and then cut off the power or power, so that the hydraulic device to stop running. There's a point is releasing hydraulic cylinder two chamber oil, open the cylinder head, before removing the first amendment to the thread filling kerosene, place a period of time, gently tapping on the cylinder head, the screw vibration loose. In both of these, the hydraulic cylinder can be removed from the work.

And then to carry out the hydraulic cylinder in the protection of the work, to achieve two points:

First, to be carried out in sequence. Because of various hydraulic jack structure and size is not the same, the order is also a little different. General should let go of hydraulic cylinder two chamber oil, then remove the cylinder head, piston and piston rod final demolition. In the demolition of the hydraulic cylinder of the cylinder head, for card Neckar key type connection keys or snap ring using special tool to prohibited using the flat shovel; for flange end cover must be with a screw top out, hammering or pry hard does not allow. When the piston and the piston rod is difficult to draw out, can not be forced to play, should first identify the reasons for the demolition. Second, the demolition should prevent damage to the top of the piston rod, oil and piston rod, piston rod surface, cylinder wall, etc.. In order to prevent the bending or deformation of the slender members of the piston rod, the application of the pad is used to support the balance.

Finally, after the hydraulic cylinder to complete the demolition work, but also to carry out some work, as the aftermath of the work. First, carefully check to determine what parts can be used, what parts can be repaired, and which parts must be replaced. Second, to create conditions to prevent the oil pressure jack of the parts to be around the dust and impurity pollution. For example, demolition should as far as possible in the clean environment of; after removing all parts to with plastic sheeting to cover, do not use cotton or other cloth cover.