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4. Safety Instructions
Safety first! Guarantee your personal safety and that of others by carefully reading the following safety
instructions before using your new VNMW safety lifting clamp.
Ensure your own safety and continue to benefit from our product safety by having the clamp inspected, tested, and,
if necessary, overhauled at least once (1x) a year by pewag austria GmbH or another authorised mechanical repair
and service centre. See also Chapter 8 – Overhaul. It is not permitted to make any structural modifications to the
clamps, for example by means of welding or grinding. Please contact pewag austria GmbH for further information.
Temperature
The operating temperature of the pewag VNMW clamps lies between -10 °C (14 °F) and +60 °C (140 °F) . Please
consult with your dealer if other ambient temperatures are applied.
Loads
Because of their deep jaws, VNMW lifting clamps are especially suited to the hoisting of split plates. Never place the
clamping jaws onto tapered or conical surfaces. If the crane hook is not secured, and/or if it is too large and heavy,
it is recommended to use a chain sling with D-shackle with a length of approximately 75 cm (30 inch) and with
load-bearing capacities suitable for the specified working load limit (WLL) of the clamp. This will prevent the crane
driver from lowering the hook too far when putting down the load, which could cause the hook to disconnect from
the lifting eye. When attaching directly onto a secured crane hook, make sure the crane hook is able to move freely
within the lifting eye.
Avoid life-threatening situations
Avoid life-threatening situations by observing the following guidelines:
• Never operate with an untested lifting clamp
• Always keep a safe distance when hoisting and never stand under the load
• Do not use the clamp if it is damaged. Have the clamp repaired by pewag austria GmbH or another authorised
mechanical repair centre. When in doubt: contact your supplier
• Never hoist more than one plate at a time
• Never hoist loads heavier than the working load limit (WLL), as clearly indicated on the clamp and the test certificate.
• Never hoist loads that are thicker or thinner than the clamp opening, as clearly indicated on the clamp and the
test certificate
• When using more than one lifting clamp at the same time, arranged in a row, 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, arranged in parallel, use a trussed hoisting girder
(equalising traverse girder) and sufficiently long lifting slings or chains, so that the lifting eye of the lifting clamp is
never subjected to 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
Safety precautions
• A free fall or uncontrolled swaying at the crane hook
resulting in objects being struck may cause damage to
the clamp. If this occurs, check whether the clamp is in
good working order before further use
• Lifting clamps are not suitable for creating permanent
joints
• Preventive maintenance of the clamp should be carried
out on a monthly basis. See Chapter 6 – Maintenance
• Do not perform structural modifications to the clamp
(such as by welding, grinding, etc.). Such modifications
may adversely affect its operation and safety. If you
carry out any modifications, all warranties and product
liability will be nullified
• This is also the reason to only make use of original
pewag replacement parts
• Any improper use of the clamp and/or failure to observe
all directions and warnings in this user's manual
concerning the use of this product may endanger the
health of the user and/or bystanders
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