Cylinder overhaul

Hydraulic cylinders are critical components in offshore lifting and handling systems, where reliability and predictable performance are essential for safe operations. During a planned SPS (Special Periodic Survey), Kverneland Aqua was contracted to overhaul a twin-cylinder assembly for Transocean Spitsbergen, restoring functionality and extending service life before the equipment returned to operation. The work was carried out at Kverneland Aqua’s workshop in Sandnes and completed within a five-day maintenance window.

The project included complete cylinder disassembly, replacement of seal kits, inspection of internal and external components, procurement of replacement parts, reassembly, testing and preparation for offshore service.

Offshore hydraulic cylinders are subjected to high loads, repeated duty cycles and harsh environmental conditions. Maintenance activities therefore require a structured approach to inspection, component traceability and quality control. Even relatively straightforward seal replacement campaigns demand careful handling, dimensional verification and attention to sealing surfaces to ensure long-term reliability after reinstallation.