32. NEEDLE THREADER
(CHECKING THE HOOK POSITION IN HORIZONTAL DIRECTION)
STANDARD
The measure from inside of the hook guard to the center point of hook is 0.42 mm.
CHECK
Prepare 5 pcs. of brand-new sewing HA × 1 (#14) and check by changing all of these.
After Checking
A. In case that, hook gets through eyelet of all needles ............................... Nothing is the matter.
B. In case that, hook does not get through eyelet of all needles ................. Adjust by bending hook.
C. In case that, hook does not get through eyelet of some needles ............ Needles through which the hook
does not get, are bad.
ADJUSTMENT
In case the hook is bad after above checking, adjust the hook by forming with pliers. In this case, do not form
hook guard.
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