Crosby IP IPSC10 Manual Del Usuario página 5

„ 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 effect on the operation
and also on the reliability of the clamp. When cleaning the clamp care should be taken to
ensuring that moving parts are lubricated and the gripping surfaces are clean. Regular cleaning
will enhance the life and reliability of the clamps.
3. 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 moving pivot (K) and the fixed pivot (C) for wear and defects. The pivots must be sharp
and free of dirt. (check also the movement of moving pivot (K) over the screw spindle (O).
„ Check the body (N) and shackle (S) for damage, cracks or deformation (this may indicate
overloading).
„ Check the screw spindle (O) for its function by opening and closing the clamp. The spindle
should be easily rotatable over its full length (when the operation of the clamp is stiff or heavy,
it should be removed from operation). Ensure that the clamp will not be unscrewed too far, as
the moving pivot (K) could fall off.
„ Check whether the W.L.L. and the jaw opening stamped on the body corresponds with the
load.
„ Minimum load permitted: 20% of the W.L.L.
The pivot(s) 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 in-
spection:
Pivot(s): Reject when the sharpness of one ring is damaged or worn for 50% or more.
Also the screw thread of the screw spindle may get damaged. Because of these damages it is
possible that the clamp will not open and close properly. This produces hazardous situations when
the clamp is placed on the plate and does not close properly. It is therefore very important to check
the spindle every time before use. It is also equally important to avoid this damage. The spindle can
in fact only become damaged when the clamp is used carelessly.
On the inside of the front cover illustrations have been included of damaged and worn (rejected)
pivots and camsegments:
1. One complete tooth not sharp and one damaged
2. Two teeth damaged for 50%
3. One tooth damaged for 100% and one tooth damaged for 50%
4. Two rings damaged for 100%
5. Interior ring damaged for 100%
These areas of damage, precisely as wear, are not covered by the warranty.
In most cases however the areas of damage are much less extensive. In doubtful cases an authori-
sed repairer should assess the clamp.
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