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of the Caravans prior to assembly. At B&L Hong Kong, an in-
dividual known as a repairer was assigned to adjust the curvature
of the Caravan frames before they were given to the operators for
assembly.
The operator used an eyewire to identify any endpiece gap
(i.e., a gap between the top and bottom portions of the
endpiece). If the operator had identified an unacceptable
endpiece gap, the operator would have used gapping pliers to
apply pressure to the endpiece so that he or she could have
further tightened the lens screw. If the operator had applied
too much pressure to the pliers, he or she could have chipped the
lens or broken the solder on the endpiece.
The operator used a fitback board to identify and examine
the crossover angle (i.e., the angle of the temples when folded
in relation to a horizontal line joining the hinge centers), the
fitback angle (i.e., the angle formed by the temples in an open
position in relationship to the front), and the down angle (i.e.,
the angle formed by the front and temple in the open position) in
order to determine if those angles were within the specifications
established for the SKU being examined. The operator also used
the fitback board to determine whether there were any rocking
temples (i.e., whether both temples had contact with the surface
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