NOAA Standard Specification MOC-573-2 Overhaul Repair of Hydraulic Cylinders.pdf
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- Attached to
- Reference Documents for DORFP 1305M224R0042 – NOAA Ship Thomas Jefferson FY25 Repairs Services
- Solicitation number
- 1305M224R0042
About this file
This document is the National Oceanic and Atmospheric Administration (NOAA) Standard Specification MOC-573-2 for the overhaul and/or repair of hydraulic cylinders. It outlines the minimum requirements for this work, including tagging out the system, disconnecting and capping the hydraulic lines, removing and transporting the cylinder to a repair facility, disassembling and cleaning the cylinder, preparing and preserving the external painted surfaces, reassembling the cylinder using new seals and gaskets, reinstalling the cylinder, and testing the system. The specification also requires a condition report detailing the inspection results and any additional parts or labor required to restore the cylinder to the manufacturer's specifications. This specification is referenced in the NOAA Ship Thomas Jefferson FY25 Repairs Services solicitation, which is a delivery order competition for an existing multiple award IDIQ contract for NOAA dockside support services.
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Text version
MOC-573-2
September 2000
National Oceanic and Atmospheric Administration Marine Operation Center
Standard Specification MOC-573-2
OVERHAUL/REPAIR OF HYDRAULIC CYLINDERS
1. SCOPE: This specification provides the minimum requirements for the overhaul and/or repair of hydraulic cylinders.
2. REFERENCES
None
3. REQUIREMENTS
3.1 Tag out system controllers and actuators to preclude
inadvertent operation and secure the movable member to prevent movement while cylinder is removed.
3.1.1 Disconnect and cap hydraulic lines from the cylinder.
Ensure containment is provided to prevent spillage of oil.
Hydraulic lines and inlet/outlet ports shall be capped or plugged with threaded fittings to prevent leakage or contamination of the system.
3.1.2 Remove the cylinder from the ship and transport to
repair facility.
3.2 Perform the following work on the removed cylinder:
3.2.1 Completely disassemble the cylinder and clean all
parts.
3.2.2 Prepare and preserve the external painted surfaces in
accordance with the identified painting specification or as original.
3.2.3 Reassemble the cylinder under clean conditions using
new "O" rings, seals, gaskets, packing, and piston rings.
Materials used shall meet or exceed original manufacturers specifications. During reassembly lubricate the above with a product equal to Hilton's Hyper-Lube, that is compatible with the system fluid.
3.2.4 Provide and install new nuts, washers, bolts, studs and inlet and outlet fittings.
3.3 Reinstall the cylinder in its original location.
MOC-573-2
September 2000
3.4 Top off hydraulic reservoir to full mark and purge all air from the system taking care to contain any fluid bled off.
3.5 Remove tag outs.
4. QUALITY ASSURANCE
4.1 After disassembly, inspect all components for trueness of bore and rod, wear, damage, corrosion or pitting. Provide a Condition Report detailing the inspection results, contractor's corrective action recommendations, and list of additional parts, material and labor not covered by this specification, required to restore the cylinder to the manufacturers specifications.
4.2 After reassembly, bench test the assembly at system working pressure to prove smoothness of operation and tightness of sealing surfaces.
4.3 Cycle the cylinder through a minimum of four evolutions to demonstrate operation and tightness of all disturbed fittings and connections. Upon satisfactory demonstration of operation and tightness apply "Denso tape" to all connections.
END OF SPECIFICATION
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