6.0 ASHORE INSPECTION AND REFURBISHMENT OF CHAIN AND ACCESSORIES
6.1.1 SCOPE. The purpose of inspecting chain and accessories is to make a sound
qualitative decision as to the disposition of these items. There are two types of
inspections: preliminary and detailed. The preliminary inspection is performed in
the known wear areas and will determine whether the chain and accessories are in
adequate condition for continued use, whether a detailed inspection is required, or
whether the items should be disposed of. In the detailed inspections, each link of
chain and each accessory is thoroughly inspected for corrosion, cracks, wear, pitting,
Based on the results of this inspection, a
elongation, or other abnormalities.
decision is made either to refurbish and retain the material or to dispose of it.
6.2 INSPECTION AND REFURBISHMENT
6.2.1 PRELIMINARY INSPECTION. Before commencing the inspection, the chain
assembly will be disassembled into individual shots or into the shortest whole chain
lengths. The ground ring, swivels, joining links, and shackles will be removed.
Shackles and joining links should be kept together as complete units, including pins.
Shackle pins and tapered locking pins should be used only in their original parent
component. Preliminary inspection will include the following:
Visually inspect all accessories and chain for abnormal wear,
deformation, cracks, or missing studs. Studs should not be removed from
chain links for any reason. Links found without studs should be cut from
the length of chain and discarded.
Take single or double link measurements (as described in Paragraph
6.2.2) in known or suspected high wear areas, such as the first two to
four links on each end of a shot, the wear zone on each anchor leg
assembly (where the chain links are shiny), and components used in the
riser subassembly or used as buoy jewelry.