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7.2 COLD BUMP PULL TESTING
7.2.1 Tool quality
The tweezers must be checked on a regular basis for quality.
Check the alignment of the jaws when closed.
Note: It may be possible for skilled technicians to repair damaged jaws
The tweezers must be checked on a regular basis for quality.
The cavity should be clear and undamaged
These jaws are the same as the jaws used for standard
Testing on the 4000 machine.
Check the alignment of the jaws when closed.
If the jaws have been bent they must be replaced.
Clean off any small particles of solder in the cavity by selecting an unwanted ball
and manually closing the jaws over it as shown below: -
Larger particles should be dislodged with a small paintbrush.
Do not use a knife or
any metal object to
clear the jaws of
debris.
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