4. ADJUSTMENT
HE-800A
80
4-2. Adjusting the needle zigzag home position sensor position
1. Turn on the power and set the sewing machine to the home position. Then press the RESET key to lower the
work clamp.
2. If the needle is in the center of the needle plate hole, the following adjustment is not necessary. If the needle is
not in the center of the needle plate hole, turn off the power.
3. Loosen the two screws (1), and then adjust the vertical position of the zigzag sensor plate (2).
* The adjustment required is only slight, so move the zigzag sensor plate (2) a little bit at a time.
4. Repeat the procedure from step 1.
5. After adjusting, check that the needle bar bracket (3) and the stopper screws (4) and (5) are not touching when
in test feed mode. If they are touching, adjust the stopper screws (4) and (5).
If the needle bar is at its furthest zigzag position, place the stopper screws (4) and (5) against the needle bar
bracket (3), and then turn them back about 1/4 of a turn. Then tighten the nuts (6) and (7).
4286Q
Reference value
Presser
bar
Needle
bar
4285Q
4284Q
4283Q
Needle moves to
the left
Needle moves to
the right
