10
NEEDLE SWING
TO CHECK:
ADJUST THE NEEDLE SWING ACCORDING TO THE FOLLOWING PROCEDURE, IF THE
NEEDLE BAR STARTS MOVING SIDEWAYS WHILE THE NEEDLE IS IN THE FABRIC AT
SEWING THE ZIGZAG PATTERN (WITH MAXIMUM ZIGZAG WIDTH).
ADJUSTMENT PROCEDURE:
1.
SET THE PATTERN SELECTOR DIAL WITH MAXIMUM ZIGZAG WIDTH, AND
REMOVE THE FRONT COVER (SEE PAGE 6).
2.
LOOSEN TWO SETSCREWS.
3.
ADJUST THE NEEDLE SWING BY TURNING THE BALANCE WHEEL, WHILE
PRESSING THE WORM SO AS NOT TO ROTATE IT, UNTIL THE NEEDLE SWING
STARTS AT 2 - 3MM ON THE NEEDLE PLATE AFTER THE NEEDLE HAS COME
OUT OF THE RIGHT SIDE OF THE NEEDLE HOLE.
4.
TIGHTEN TWO SETSCREWS.
5.
MOUNT THE FRONT COVER.
NOTE: AFTER ADJUSTING THE NEEDLE SWING, CHECK THAT THE UPPER
SHAFT WORM AND GEAR ROTATE SMOOTHLY WITHOUT ANY
BACKLASH BETWEEN THEM.
MECHANICAL ADJUSTMENT
UPPER SHAFT WORM
GEAR
SETSCREW (2 PCS.)
2-3MM
