Harrington Hoists and Cranes HSC Sling Chain - Manual (Page 4)

The sling can be used as a below-the-hook lifting device or an above-the-hoist suspending device. Per the ANSI/ASME B30 standards, the use
of a sling is subject to certain hazards that cannot be mitigated by engineered features, but only by the exercise of intelligence, care, common
sense, and experience in anticipating the effects and results of utilizing the sling. Use this guidance in conjunction with other warnings,
cautions, and notices in this manual to govern the operation and use of the sling.
4.2 Shall’s and Shall Not’s for Operation
WARNING
Improper use of a sling can create a potentially hazardous situation which, if not avoided,
could result in death or serious injury, and substantial property damage. To avoid such a
potentially hazardous situation THE OPERATOR SHALL:
• NOT shorten or adjust the sling chain by any means other than
those methods approved by the sling chain manufacturer or
qualified person.
• NOT shorten or lengthen the sling chain by knotting or twisting.
• Hitch the sling chain in a manner providing control of the load.
• NOT allow the sling chain in contact with edges, corners or
protrusions without being protected by a material of sufficient
strength, thickness, and construction to prevent damage to the
sling chain.
• NOT allow the sling chain to be shock loaded.
• NOT allow loads to be rested on the sling chain.
• NOT pull sling chains from under a load when the load is resting
on the sling chain .
• Be alert during lifting, with or without load, for possible sling chain
snagging on objects.
• NOT allow the sling chain to be twisted or kinked.
• NOT allow the sling chain to be dragged on the floor or over an
abrasive surface.
• NOT allow the sling chain to be constricted, bunched, or pinched
by the load, hook, or any fitting.
• Reduce the working load limit (rated capacity) of sling chains
exposed to high temperatures per Section 2.1.1.
• Make sure sling chains, fittings and attachments are properly
sized and rigged.
• Make sure load is balanced and load-holding action is secure
before continuing.
• Make sure all persons stay clear of the supported load.
• Warn personnel before lifting or moving a load.
• Warn personnel of an approaching load.
• Keep all portions of the human body from between the sling chain
and the load, and from between the sling chain and the crane
hook or hoist hook.
• NOT allow personnel to stand in line with or next to the leg(s) of a
sling chain that is under tension.
• NOT allow personnel to stand or pass under a suspended load.
• NOT allow personnel to ride on the sling chain.
• Inspect the sling regularly and keep appropriate records of
maintenance.
• Avoid swinging the load.
• NOT allow your attention to be diverted from using the sling chain
or lifting system.
• NOT allow the sling chain to be subjected to sharp contact with
structures, or objects through misuse.
CAUTION
Improper operation of a sling can create a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury, or property damage. To avoid such a potentially hazardous situation THE OPERATOR SHALL:
5.0 Inspection
5.1 Initial Inspection – Prior to initial use, all new, altered, or modified slings shall be inspected by a designated person to ensure compliance
with the applicable provisions of this manual.
5.2 Inspection Classification – The inspection procedure herein is based on ANSI/ASME B30.9, “Slings”. Inspections for sling chains in
regular service are divided into FREQUENT and PERIODIC groups based upon the intervals at which inspection should be performed.
The intervals in turn are dependent upon the degree of service and usage the slings are subjected to. FREQUENT and PERIODIC
inspections should be made with respective intervals between inspections as defined in Table 5-1, “Inspection Intervals”.
Table 5-1 Inspection Intervals
Service FREQUENT Inspection PERIODIC Inspection
Normal Service
Each Day or Shift
Yearly
Severe Service Monthly to Quarterly
Special Service
As recommended by a qualified person before
the first such occurrence and as directed by the
qualified person for any subsequent occurrences.
5.3 Frequent Inspection
5.3.1 Inspections should be made on a FREQUENT basis in accordance with Table 5-2, “Removal Criteria” Included in these
FREQUENT Inspections are observations made during each day or shift the sling chain is in use for any defects or damage that
might appear between Periodic Inspections. Evaluation and resolution of the results of FREQUENT Inspections shall be made by a
designated person such that the sling chain is maintained in safe working condition.
5.4 Periodic Inspection
5.4.1 Inspections should be made on a PERIODIC basis in accordance with Table 5-2, “Removal Criteria.” Evaluation and resolution of
the results of PERIODIC Inspections shall be made by a designated person such that the sling is maintained in safe working
condition.
5.4.2 A complete inspection for damage of the sling chain shall be periodically performed by a designated person. Each link shall be
examined individually, taking care to expose and examine all surfaces including the inner link surfaces. The sling chain shall be
examined for conditions such as those listed in Table 5-2, “Removal Criteria” and a determination made as to whether they
constitute a hazard. Periodic inspection intervals shall not exceed 1 year. The frequency of periodic inspections should be based
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