−
29
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1) Turn the handle to bring the machine to its home position (0˚).
2) Loosen setscrew
A
of the eccentric boss, turn the eccentric boss
by 180˚, and fix it there.
3) Loosen setscrew
B
of the lifting cam and the lifting cam to the
lowest position of the lower feed dog. Then tighten setscrew
B
.
™
If the upper feed is not synchronized
with the movement, it will result in
stitch slippage.
1) Loosen the nut of the joint in the previous item 1), and adjust so
that the lower feed dog protrudes from the throat plate by 0.5 to
0.8 mm.
2) Loosen setscrew
C
and adjust so that the lower feed dog is parallel
to the throat plate, then tighten setscrew
C
.
™
If the lower feed dog is positioned
lower than the specified amount, the
material to be sewn may not be fed.
Adjustment Procedures
Results of Improper Adjustment
