TM-5-5420-279-10
3.8.3.6
The load should be secured by the sling(s) in such a manner that it cannot topple or fall
out of the sling(s) during the lift. The sling(s) should be arranged so that the point of lift is
directly above the center of gravity and the load is balanced and stable. Movement of the
sling over the lifting point is possible if the center of gravity of the load is not below the
lifting point.
3.8.3.7
When a sling is used in choked hitch, as in the case of lifting the ramp module end beams
it should be positioned so as to allow the natural 120 degrees angle to form and avoid
heat being generated by friction. A sling should never be forced into position nor an
attempt made to tighten the bite.
3.8.3.8
Care should be taken to ensure the safety of personnel during the lift. Persons in the
danger area should be warned that the operation is to take place and, if necessary,
evacuated from the immediate area.
3.8.3.9
Hands and other parts of the body should be kept away from the sling to prevent injury as
the slack is taken up.
3.8.3.10
A trial lift should be made. The slack should be taken up until the sling is taut. The load
should be raised slightly and a check made that it is secure and assumes the position
intended.
3.8.3.11
If the load tends to tilt, it should be lowered and attachments repositioned. The trial lift
should be repeated until the stability of the load is ensured.
3.8.3.12
Care should be taken when making the lift to ensure that the load is controlled, e.g. to
prevent accidental rotation or collision with other objects.
3.8.3.13
Snatch or shock loading should be avoided, as this will increase the forces acting on the
sling.
3.8.3.14
A load in the sling or the sling itself should not be dragged over the ground or rough
surfaces.
3.8.3.15
The load should be lowered in an equally controlled manner as when lifted.
3.8.3.16
Trapping the sling when lowering the load should be avoided. The load should not rest on
the sling, as this could cause damage. Pulling the sling from beneath the load when the
load is resting on it should not be attempted.
3.8.3.17
On completion of the lifting operation, the sling should be returned to proper storage.
3.8.3.18
When not in use, slings should be stored in clean, dry and well ventilated conditions, at
ambient temperature and on a rack, away from any heat sources, contact with chemicals,
fumes, corrosive surfaces, direct sunlight or other sources of ultraviolet radiation.
3.8.3.19
Prior to placing in storage, slings should be inspected for any damage, which may have
occurred during use. Slings should never be returned damaged to storage.
3.8.3.20
Where lifting slings have been exposed to acids and/or alkalis, dilution with water or
neutralization with suitable media is recommended prior to storage.
3.8.3.21
Slings, which have become wet in use, or as the result of cleaning, should be hung up
and allowed to dry naturally.
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