Crosby IPTK Betriebsanleitung Seite 4

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.
Inter Product BV provides a 10 year warranty for its clamps. In order to benefit from this
warranty programme and for more details on maintenance procedures, please consult
www.crosbyip.com/warranty for more information.
Please read and understand these instructions before using the lifting clamp.
it is not permitted
to stay in the
1.1 Safety precautions
danger zone of
the load.
Proper instruction for the personnel is of vital importance. This will contribute to
„
maximum reliability in the working environment.
no changes may
IPTK - IPTKW - IPTKU - IPTKUD clamps may be applied per piece, per set or with
be made to
„
several clamps simultaneously for the lifting of steel beams and profiles. Ensure
crosbyiP clamps.
that each clamp receives its proportionate share of the load. When using two
never straighten,
clamps or more a spreader beam is recommended.
attempt to bend
When the IPTK - IPTKW - IPTKU - IPTKUD clamps are used as temporary tackle
or heat treat
„
eye the clamps may be used only individually.
parts.
Temperature: The standard lifting clamps may be used with temperatures that lie
„
between 100 ºC (212 ºF) and -40 ºC (-40 ºF). For other temperatures contact your
clamps suited for
CrosbyIP Customer Service Centre.
stainless steel,
There are restrictions for operation in special atmospheres (e.g. high humidity,
must be used
„
explosive, saline, acid, alkaline).
only for handling
Loads: For proper application of the clamp consult the load diagrams 1-3.
stainless steel, to
„
Ensure that all attachments between lifting eye and crane are properly fitted,
avoid contact
„
secured and coupled.
corrosion.
IPTKU - IPTKUD: 100% W.L.L. at 45° cross loading can be achieved provided
„
that special demands regarding flange thickness and fixation are met. Please
contact your CrosbyIP Customer Service Centre for more information.
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.
Copyright © 2013 The Crosby Group LLC. All Rights Reserved.
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 2-4 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.
Check the frame elements (N) for damage, cracks or deformation (this might
„
indicate overloading).
Check the lifting eye (D) and the hinge block (R) (IPTKU - IPTKUD), the hinge shaft
„
and nut (Q) (check also the cotter pin (L) which locks the nut), hoisting shaft (I) and
nut (check also the roll pin (P) that holds the hinge shaft) for clearly visible wear
and/or damage.
Check the lever (H) for blocking the spindle (IPTKUD) can be operated smoothly
„
and is locking in two positions.
Check the screw spindle (O) for its function by opening and closing the clamp
„
with the hand grip (X). The spindle should be easily rotatable over its full length.
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 whether the W.L.L. and the jaw opening stamped on the body corresponds
„
with the load to be lifted.
IPTK - IPTKW - IPTKU - IPTKUD clamps are particularly prone to the following defects:
The screw thread of the screwed spindle of these types of clamps may become damaged.
These defects may result in the clamp not opening and closing properly. This, when the
clamp does not close on the beam, can become a source of hazardous situations. It is
therefore extremely important to check the spindle on each occasion prior to use.
Also equally important is that these defects be avoided. The spindle can in fact only be
damaged by careless use of the clamps.
Another form of damage to this clamp is deformation of the body. The plates in the
body elements are then generally bent. This too may result in the body not closing
properly. Deformation of the body is caused by exceeding the load angle of the clamps.
You should for this reason check not only the body for defects but also ensure that the
lifting conditions are correct.
In doubtful cases an authorised repairer should assess the clamp.
Copyright © 2013 The Crosby Group LLC. All Rights Reserved.
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