J--Crane Repairs at the Naval Submarine Base New London Groton CT 06349-5026

Damage to chrome extension cylinder rod caused damage to the wiper seal which is causing cylinder oil to leak by the wiper seal. The contractor shall remove and replace the damaged telescoping boom extension cylinder and resulting damaged wiper seal: The contractor shall remove the boom from the upper structure of the crane using OEM approved lifting and handling procedures. The crane boom sections shall be disassembled as necessary to fully access the telescoping cylinder in accordance with (IAW) technical publications and service bulletins. Remove telescoping cylinder assembly and replace with new Link Belt telescoping cylinder, part J9J379 and all fluids, to be supplied by the contractor. Once completely disassembled, the contractor will clean and inspect all internal parts including all wear pads, telescoping wear pads, pins, extend and retract wire rope cables. The government maintenance supervisor and weight handling engineer will be notified of all worn or defective parts. Prior to reassembly, government representatives will visit contractor site to perform an onsite inspection of the new and reusable telescoping cylinder parts for assembly. After inspection has been approved, the contractor shall commence reassembly. Reinstall new telescoping cylinder assembly using new associated hardware. Torque all fasteners to Link-Belt requirements. Reinstall boom sections and prepare to hoist boom assembly to the upper structure installing heel pins back into place. Inspect and adjust wear pads as needed IAW OEM specifications. Reinstall boom hoist cylinder head pin to the boom assembly. Reconnect hydraulic hoses to telescoping cylinder assembly. Reinstall all access covers to boom assembly. Check function of the newly installed cylinder. Upon completion of the work, NAVFAC PWD Transportation will retrieve the completed unit to Naval Submarine Base New London. All road permits will be obtained and granted by the Navy. Calibration of boom length, radius and Load Indication to read correctly IAW the manufacturers load chart and SAE J-159 to be confirmed during NAVFAC Load test at Naval Submarine Base New London. The requirements set forth in this repair shall not be altered.