Hydraulic cylinder repair

Now that we know how a hydraulic cylinder, we can delve into the reasons why falls overlook. Here are some common problems that can break a hydraulic cylinder or cause a malfunction. I will discuss possible solutions that can help rebuild or repair the hydraulic cylinder. Reading instruction manuals for equipment supplied by manufacturers carefully before proceeding.

First Problem : rod hydraulic cylinder piston is broken or bent!

Bent rods are a common cause of joint failure. Bending cylinder bars can be caused by the rod diameter or insufficient material strength, cylinder mounting bad deal or a combination. Once the rod bends, the excessive burden is placed on the seal resulting in premature failure of the joint. The permissible load for a cylinder rod in an existing application can be checked using the Euler formula. A detailed explanation of how to do this is contained in the hydraulic industry control.

Solution: If the coverage, you see the twisted cylinder or barrel of the bottle is broken, there is nothing more or less you can do. It is time to replace the cylinder. Forging a new stretcher or ironing, the piston rod is beyond your capabilities. So if this is the case, repairing the hydraulic cylinder is not possible.

Second Problem: The seal of the hydraulic cylinder is broken!

Solution: If the shaft seal is broken can be replaced. However, the opening of the entire cylinder assembly is needed. Let’s see how we go about it. Get a diagram hydraulic cylinder, if possible, because it will help to reassembly. These cards you get equipment manufacturers and can also make an impression. You can order a repair kit for your standard hydraulic cylinder which is driven by production companies. It contains parts of cylinder seals and other parts based on the number and type of cylinders in the car.

The assembly of the cylinder varies with the type of machine. Locate the first seal. Most are located around the shaft at one end. The rotor shaft entrance is accessible by unscrewing the cover on that side. Then loosen the ducts that carry the fluid in the chamber capable of releasing the pressure. This will allow you to remove the tree that otherwise can not be removed due to hydraulic pressure. Handle with care the trees and be careful not to scratch it. Unplug the piston shaft and replace the seal with parts from a repair kit. Make sure the gasket is correctly aligned. Oil all the parties after the installation and back together in exactly the reverse order.

Third Problem : Inflated Tubes
Ballooning of the cylinder tube is usually caused by insufficient wall thickness and / or resistance materials for pressure cylinder operation. Once the tube balloons, correct tolerance between the piston and the tube wall is lost and high pressure fluid bypasses the seal. This high velocity fluid can erode the seal and localized overheating caused by the pressure drop through the piston reduces the length of the seal.

Cylinder Hydraulic System Diagram (Click Here to See Detail)

Four Problem: The segments are damaged!

Solution: If the piston rings are damaged, they can also be replaced by disassembling the same procedure regarding the above problem. The piston rings must be removed and replaced with great care. Scraper rings and cylinder before putting it all together.

If you have a multiple cylinder, things are more complicated. It is best to consult a qualified technician before continuing. I hope this article gave you an idea of how to rebuild a hydraulic cylinder with ease. I always remember one rule while you are solving mechanical problems, not without a reason to take some action. In addition, the assembly studies and etiological framework of the car before going to repair. Repair of hydraulic cylinders may be a good learning experience for those who like the design of the machine.