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Sling
Saver® Web Sling System |
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INSPECTION OF SYNTHETIC WEB SLINGS ASME B30.9C 1994
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| Type of Inspection |
| a. |
Frequent Inspection |
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This inspection should be made by a qualified person handling
the sling each time the sling is used. |
| b. |
Periodic Inspection |
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This inspection shall be conducted by a designated person. Frequency
of inspection should be based on: 1. Frequency
of use 2. Severity of service conditions
3. Experience gained on service life of slings used
in similar applications. 4. Periodic inspection
should be conducted at least annually. |
| Inspection
Records. Written inspection records, utilizing
the identification for each sling as established by the user, should
be kept for all slings. These records should show a description
of the new sling and its condition on each periodic inspection. |
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| Removal
Criteria. |
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| A sling shall be removed from service
if damage such as the following is visible and shall be returned
to service when approved by a designated person. |
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| a. |
Acid or charring burns. |
| b. |
Melting or charring of any parts of the sling. |
| c. |
Holes, tears, cuts or snags. |
| d. |
Broken or worn stitching in load bearing splices. |
| e. |
Excessive abrasive wear. |
| f. |
Knots in any parts of the sling. |
| g. |
Excessive pitting or corrosion, or cracked, distorted
or broken fittings. |
| h. |
Other visible damage that cause doubt as to the strength
of the sling. |
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OPERATION OF SYNTHETIC
WEB SLINGS:
ASME B30.9C 1994 |
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Operating
Practices |
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- Slings having
suitable characteristic for the type of load, hitch and environment
shall be selected in accordance with appropriate table.
- The weight of
load shall be within the rated load of the sling.
- Slings shall
be shortened, lengthened, or adjusted only be methods approved by
the sling manufacturer.
- Slings shall
not be shortened or lengthened by knotting.
- Sharp corners
in contact with the sling should be padded with material of sufficient
strength to minimize damage to the sling.
- Portions of
the human body should be kept from between the sling and the load,
and from between the sling and the crane hook or hoist hook.
- Personnel should
stand clear of the suspended load.
- Personnel shall
not ride the sling.
- Shock loading should
be avoided.
- Slings should not be
pulled from under a load when the load is resting on the sling.
- Slings should
be stored in a cook. dry and dark place to prevent environmental damage.
- Twisting and kinking
the legs shall be avoided.
- Load applied to the hook
should be centered in the base (bowl) of hook to prevent point loading
on the hook.
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- During lifting, with
or without load, personnel shall be alert for possible snagging.
- In a basket hitch, the
load should be balanced to prevent slippage.
- The sling's legs should
contain or support the load from the side above the center of gravity
when using a basket hitch.
- Sling should be long
enough so that the rated load is adequate when the angle of the legs
is taken into consideration.
- Slings should not be
dragged on the floor or over an abrasive surface.
- In a choker hitch, slings
shall be long enough so the choker fitting chokes on the webbing and
never on the other fittings.
- Nylon and polyester slings
shall not be used at temperatures in excess of 194° F (90°
C), or at temperatures below -40°F (-40° C).
- When extensive exposure
to sunlight or ultraviolet light is experienced by nylon or polyester
web slings, the sling manufacturer should be consulted for recommended
inspection procedures.
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"Reprinted
from ASME B30.9-1990 by permission of
The American Society of Mechanical Engineers". |
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Copyright
© 2003 The Crosby Group, Inc. All rights reserved |
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