Can a hydraulic cylinder be repaired on-site or does it need factory service?

 Most issues with hydraulic cylinders, such as sealing replacement or minor rod scoring repairs to the gland and bushing wear, are repairable on-site using an on-site service unit or at a local repair shop. Damage caused by the bent or extremely damaged rod, damaged or bored-out barrel, honing the internal tube, or chrome replating requires the use of machining equipment that is factory-level and must be taken to a specialist repair facility. The best option is based on the type of failure as well as the bore tolerances of the cylinder and the speed at which the equipment is required to return to its original condition

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