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Adjustment Procedures
1. Adjustment of the needle bar height
(1) Remove the needle bar, roller cover, surface cover, and packing.
(2) Loosen the setscrew
vertically.
(3) After adjustment, tighten the setscrew
(Caution) Use caution not to rotate the needle bar
of needle bar height.
Failure to observe this changes needle entry positions.
and adjust the needle bar
.
– 19 –
Results of Improper Adjustment
o Remarkably improper needle bar
height adjustment may cause
position
stitch skipping, needle breakage,
or thread breakage.
at adjustment
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