Crosby IP IPBK Manual De Usuario página 8

1.2
Prior to every application of the clamp it is important the clamp operator inspects the
EN
clamp for proper functioning.
08
Attention must be paid to the following (see illustration 2 for part reference):
Ensure that the beam 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 beam.
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 hinge shaft (F)).
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.
Minimum load permitted:
„
5% of the W.L.L. applying to plate surface hardness 279 HV10.
10% of the W.L.L. applying to plate surface hardness 363 HV10.
Always apply the minimum load, otherwise the load risks slipping out
„
unintentionally.
The pivot(s) and the camsegment are the most critical parts in the clamp and require extra
attention during inspection. Observe the following rules during every inspection:
Pivot(s):
Camsegment:
Some illustrations have been included on the inside of the front cover of damaged and
worn (rejected) pivots and camsegments with explanations. In most cases however the
areas of damage are much less extensive. In doubtful cases an authorised repairer
should assess the clamp.
Copyright © 2016 The Crosby Group LLC. All Rights Reserved.
Inspection protocols
Reject when the sharpness of one ring is damaged or worn for 50% or
more.
Reject when the sharpness of one tooth is damaged or worn for 50% or
more.