11
TEMPERATURE
The operating temperature of the REMA CNMA lifting clamps lies between -10
°
C
and +30
°
C. Please consult with your dealer if other ambient temperatures are
applied.
LOADS
Because of their deep jaws, CNMA lifting clamps are especially suited to the hoisting
of split plates. Never place the clamping blocks onto tapered or conical surfaces. If
the crane hook is not secured, and/or if it is very large and heavy, always use a
chain sling with D lock and a length of approximately 75 cm (30 inch) and with a
strength matching the safe work load (WLL) of the clamp. This will prevent the crane
driver from lowering the hook too far when putting down the load, which might
cause the hook to disconnect from the lifting shackle. When attaching directly onto
a secured crane hook, make sure the crane hook is able to move freely within the
lifting shackle.
AVOID SITUATIONS INVOLVING RISK OF LIFE
Avoid situations involving risk of life by observing the following directives:
-
Never operate an untested lifting clamp.
-
Always keep a distance during the hoisting operation and never stand
underneath the load.
-
Do not use the clamp if it is damaged. Have the damp repaired by REMA or
another recognized mechanical repair and service centre. When in doubt: contact
your supplier.
-
Never hoist more than one plate at a time.
-
Never hoist loads heavier than the safe work load (W.L.L.), as is clearly
indicated on the damp and the certificate.
-
Never hoist loads that are thicker or thinner than the clamp opening, as
indicated on the clamp and the certificate.
-
When using more than one lifting clamp at the same time, opposite each
other, provide lifting slings or chains of a sufficient
length to ensure that the
angle between the slings or chains does not exceed 60 degrees.
-
When using more than one lifting clamp at the same time, next to each
other, use a trussed hoisting girder (equalizing traverse
girder) and sufficiently
long lifting slings or chains, so that the lifting shackle of the lifting clamp is never
subjected to a lateral load.
-
Never place the clamp onto tapered or conical parts of the load to be
hoisted.
-
Remove all grease, oil, dirt, corrosion and contamination from the plate at
the point where the lifting clamp is to be attached.
-
The clamp is only suitable for use in normal atmospheric conditions.
