Harrington Hoists and Cranes HSC Sling Chain - Manual (Page 5)

on Table 5-1, “Inspection Intervals”. A written record of the most recent periodic inspection shall be maintained and shall include
the condition of the sling chain.
5.5 Removal Criteria
5.5.1 An alloy sling chain shall be removed from service if conditions such as listed in Table 5-2, “Removal Criteria”.
Table 5-2 Removal Criteria
Missing or illegible sling chain identification.
Cracks, breaks, excessive wear, nicks or gouges, excessive pitting or corrosion or weld splatter.
Minimum thickness on chain links shall not be below the “d” values listed in Table 5-4, “Chain Wear Dimensions”.
Stretched sling chain links shall not exceed the “P” values listed in Table 5-4, “Chain Wear Dimensions”.
Bent, twisted or deformed chain links.
Lack of ability of chain to hinge (articulate) freely.
Evidence of heat damage
5.6 Repair
5.6.1 Sling chains shall be repaired as follows in Table 5-3, “Repair”.
Table 5-3 Repair
Sling chain shall be repaired only by the sling manufacturer or qualified person.
A repaired sling shall be marked to indentify the repairing agency.
Sling chain used for sling repair shall comply with the provisions of ANSI/ASME B30.9, “Slings”.
Cracked, broken or bent chain links shall not be repaired, they shall be replaced.
Modifications or alterations to the sling shall be considered as repairs and shall conform to all other provisions of
ANSI/ASME B30.9, “Slings”.
Hooks, rigging hardware and below-the-hook lifting devices per the manufacturer’s criteria, ANSI/ASME B30.10,
Hooks, B30.20, Below-the-Hook Lifting Devices and B30.26, Rigging Hardware.
All repairs shall comply with the proof test requirements of ANSI/ASME B30.9, “Slings”.
Table 5-4 Chain Wear Dimensions
Product Code
“P” Dimension
inch (mm)
“d” Dimension
inch (mm)
Standard Discard Standard Discard
HSC070 4.17 (106.0) 4.38 (111.3) 0.28 (7.0) 0.25 (6.3)
HSC100 5.96 (151.5) 6.26 (159.0) 0.39 (10.0) 0.35 (9.0)
HSC130 7.76 (197.0) 8.14 (206.8) 0.51 (13.0) 0.46 (11.7)
6.0 Maintenance and Handling
6.1 For sling chain maintenance or storage, comply with the following points.
6.1.1 C N AUTIO
„ Do not store in a manner that would allow
mechanical damage or kinking. „ Avoid storage or use in temperatures at or below -40 °F
(-40 °C) and at or above 400°F (205°C).
„ Do not store the sling chain while supporting a load. „ Possibility of corrosion increases for installations where
salt air and high humidity are present. Make frequent
and regular inspections of the sling chain’s condition and
operation.
„ Remove any dirt or water on the sling chain.
„ Store the sling chain in a dry and clean area.
„ Perform all inspections given in “5.0 Inspection” if
irregularity of the sling chain is found after
operation.
„ Avoid exposure to chemically active environments and
chemicals in the form of solids, liquids, gases, vapors or
fumes.
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