Thursday, 9 November 2017

HYDRAULIC CYLINDER REPAIRING PROCESS

HOW TO HYDRAULIC CYLINDER REPAIRING PROCESS SEE THIS STEPS



•   Before doing anything, be sure all pressure is released from the cylinder. Loosen or remove the hydraulic lines on each end of the cylinder as this will allow all pressure to all escape. You may be able to unscrew the gland without removing either end of the cylinder assembly from its end connections.



•   In this case, I needed the room, so I pulled the pin from the piston rod end. Using the new tool, the gland is unscrewed from the hydraulic cylinder. In some cases a slight tap or bump with a hammer may be applied to the tool to break the gland loose. Once loosened, the gland should unscrew easily and pull away from the hydraulic cylinder if there is   on the piston rod end.


•   With the gland removed, pull the piston rod from the cylinder. Large hydraulic cylinders may have to be supported to keep them straight while removing the piston rod. A winch is sometimes used for large cylinders but is not required Lifter or Crain in most cases.


•   Try to keep the piston rod from falling into the dirt or against other metal objects when it pulls out of the cylinder. Protect all parts Put all items one free box such as the fine threads inside of the cylinder from any damage, this is a very important and potentially costly precaution.


•   When the piston rod is free put the rod end back into its pin connection and unscrew the retaining bolt which holds the piston to the rod., this bolt may have to be heated if a thread locking substance has been used in a prior rebuilding process May be Need Heating Gas welding then free on threads. Try not to heat the piston any more than necessary and this should work  . Place the parts in order and take a photo or two for later reference if  you needed this was your assembling time easy.


•   Then check Cylinder tube you confirm not any damages .if got some scratches like lines   you required Tube  Honing  Service  . then check piston or gland nut insaid some damages 










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