Safety Precautions - Crosby IP iPhgUZ Instructions D'utilisation

1. General
You have chosen a crosbyiP lifting clamp.
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If CrosbyIP clamps are maintained as described in this manual, they will remain in
optimum condition. We believe that CrosbyIP clamps are the most reliable lifting
clamps available. But using reliable tools does not automatically mean that practices
are reliable. The people who work with clamps play an equally important role in reliable
lifting. Ensure that everyone who works with CrosbyIP lifting clamps has been
instructed in the proper application of the clamps.
Please read and understand these instructions before using the lifting clamp.
1.1

Safety precautions

Proper instruction for the personnel is of vital importance. This will contribute to
check when
„
maximum reliability in the working environment.
placing the clamp
IPHGUZ clamps may be applied per piece, per set, per 4 clamps for the horizontal
that slings are
„
transport of steel plates, beams or constructed work. When using multiple
not twisted.
clamps, ensure that each clamp receives its equal share of the load.
Hardness: With the standard clamps it is possible to lift steel with a surface
it is not permitted
„
hardness of 363 HV10. For harder steel types contact your CrosbyIP Customer
to stay in the
Service Centre.
danger zone of
Contact your CrosbyIP Customer Service Centre before using this clamp for
the load.
„
plates and constructions that have a radius.
Temperature: The standard lifting clamps may be used with temperatures that lie
no changes may
„
between 100 ºC (212 ºF) and -40 ºC (-40 ºF). For other temperatures contact your
be made to
CrosbyIP Customer Service Centre.
crosbyiP clamps.
There are restrictions for operation in special atmospheres (e.g. high humidity,
never straighten,
„
explosive, saline, acid, alkaline).
attempt to bend
Loads: For proper application of the clamp consult the load diagrams 1-2.
or heat treat
„
Ensure that all attachments between lifting eye and crane are properly fitted,
parts.
„
secured and coupled.
Several plates may be transported or lifted per lift, only if the plates will not sag.
clamps suited for
„
IPHGUZ lifting clamps may be used for sagging, bended or joggled plates,
stainless steel,
„
however in that case no more than one at the time.
must be used
When the crane hook or attachment is too large and/or too heavy, use properly
only for handling
„
sized CrosbyIP 5000 stinger assembly or a chain sling with D-shackle of 75 cm.
stainless steel, to
(30 inch), with a strength that corresponds to the W.L.L. of the clamp. This will,
avoid contact
when setting the load down, prevent the hook from descending too far allowing
corrosion.
the clamp to open under the weight of the hook, or, in the case of an unprotected
crane hook, its descending from the lifting eye. When suspending the clamp
directly on the secured crane hook attention must be given to ensuring that the
crane hook can move freely in the lifting eye. Ensure that the crane hook and
other material is protected.
© 2013 The Crosby Group LLC. All Rights Reserved.
Remark: when handling the load, one should ensure that the load and or clamp
„
does not encounter obstacles which could release the load on the clamps
prematurely.
A clamp is a device that must be clean when used. Dirt has an adverse affect on
„
the operation and also on the reliability of the clamp. When the clamp is dirty and
greasy it can be cleaned with diesel oil or petroleum. Then blow dry with air or dry
with a cloth and apply a little lubricant. It is important to ensure that the gripping
surfaces are clean at all times. Regular cleaning will enhance the life and reliability
of the clamps.
1.2 inspection protocols
Prior to every application of the clamp it is important the clamp operator inspects the
clamp for proper functioning.
Attention must be paid to the following (see illustration 3 for part reference):
Ensure that the plate surface with which the clamp is to come into contact is free
„
of scale, grease, oil, paint, water, ice, moisture, dirt and coatings that might
impede the contact of the gripping surface with the plate.
Inspect pivot(s) (C) and camsegment (B) for wear and defects. The pivot(s) and
„
teeth must be sharp and free of dirt.
Check the body (N) and the jaw for damage, cracks or deformation (this may
„
indicate overloading). The clamp must open and close properly (when the
operation of the clamp is stiff or heavy, it should be removed from operation for
inspection).
Check the lifting eye (D) and camsegment shaft (G) for readily detectable wear
„
and/or damage. (check also the roll pin (P) which locks the camsegment shaft).
Check the spring (M). Press when the latch lever (A) is closed on the lifting eye (D).
„
There should be clearly apparent spring tension. The clamp should, when the
lifting eye is released, return to the closed position without problems.
Check whether the W.L.L. and the jaw opening stamped on the body corresponds
„
with the load to be lifted.
The pivot(s) and the camsegment are the most critical parts in the clamp and require extra
attention during inspection. Ensure in any event for good light during inspection. Observe
the following rules during every inspection:
Reject when the sharpness of one ring is damaged or worn for 50% or
Pivot(s):
more.
Camsegment: Reject when the sharpness of one tooth is damaged or worn for 50% or
more.
© 2013 The Crosby Group LLC. All Rights Reserved.
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