Safety Precautions - Crosby IP IPBHZ Manual Del Usuario

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.
check when
placing the clamp
1.1

Safety precautions

that slings are
not twisted.
Proper instruction for the personnel is of vital importance. This will contribute to
„
maximum reliability in the working environment.
it is not permitted
The IPBHZ - IPHGZ clamps may be applied per piece, per set, per three clamps
to stay in the
„
or with several pairs simultaneously for the lifting of steel plates. Ensure that each
danger zone of
clamp receives its equal share of the load. When using more than two clamps an
the load.
equalizing beam is recommended.
Hardness: With the standard clamps it is possible to lift steel with a surface
no changes may
„
hardness of 363 HV10. For harder steel types contact your CrosbyIP Customer
be made to
Service Centre.
crosbyiP clamps.
Contact your CrosbyIP Customer Service Centre before using this clamp for
never straighten,
„
plates and constructions that have a radius.
attempt to bend
Temperature: The standard lifting clamps may be used with temperatures that lie
or heat treat
„
between 100 ºC (212 ºF) and -40 ºC (-40 ºF). For other temperatures contact your
parts.
CrosbyIP Customer Service Centre.
There are restrictions for operation in special atmospheres (e.g. high humidity,
clamps suited for
„
explosive, saline, acid, alkaline).
stainless steel,
Loads: For proper application of the clamp consult the load diagrams 1.
must be used
„
Ensure that all attachments between lifting eye and crane are properly fitted,
only for handling
„
secured and coupled.
stainless steel, to
Several plates may be transported or lifted per lift, only if the plates will not sag.
avoid contact
„
IPBHZ - IPHGZ lifting clamps may be used for sagging, bended or joggled plates,
corrosion.
„
however in that case no more than one at the time.
When the crane hook or attachment is too large and/or too heavy, use properly
„
sized CrosbyIP 5000 stinger assembly or a chain sling with D-shackle of 75 cm.
(30 inch), with a strength that corresponds to the W.L.L. of the clamp. This will,
Copyright © 2013 The Crosby Group LLC. All Rights Reserved.
when setting the load down, prevent the hook from descending too far allowing
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.
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(s) 2 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 camsegment (B) for wear and defects. The 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 that are stamped on the body
„
corresponds with the load to be lifted.
Copyright © 2013 The Crosby Group LLC. All Rights Reserved.
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