safety bulletin #021
SAFETY BULLETIN # 021
INSPECTION, TESTING AND MAINTENANCE OF WIRE ROPE SLINGS,
INSPECTION, TESTING AND RECORD-KEEPING
1.All wire rope slings must have a safety factor of 5.1.
2.Wire rope slings coming into the system shall be subjected to
a proof load test by the manufacturer. The safe working load (SWL)
must be clearly marked on each sling, either by staming or tagging.
A certificate verifying that a proof load test was made, and
specifying the SWL, must be completed and provided by the
manufacturer.
3.All user organizations will maintain a register containing the
following information:
(a)Sling ID number, date in service and safe working load as
stated on the proof load certificate.
4.Tables showing the safe working load rated capacities of
slings, must be posted in a suitable location to afford easy
reference for those employees who use slings.
5.All slings shall be visually examined for damage or defects,
before and after use.
6.Slings shall be stored in an area where they will not be
damaged by extreme heat, moisture, corrosion, kinking or equipment
and vehicles.
7.All slings shall be inspected at least once in a 6-month
period in compliance with ANSI standard B30-9. The inspection shall
be performed by a competent person designated by the Crane and
Elevator Unit of the S.A. Projects Inspection Division, Engineering
Service Organization.
8.Full details of each periodic inspection carried out by the
designated inspector, shall be recorded in the register as
specified in Part 3 of this bulletin.
9.Any sling found to be damaged or defective will be immediately
removed from service and destroyed to prevent further use. The
sling's removal from service shall be recorded in the register
maintained by the user.
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