Needle Bar Height - Janome NH40 Service Manual

MECHANICAL ADJUSTMENT

NEEDLE BAR HEIGHT

When the tip of the hook meets the right side of the needle in ascending travel of the needle from its right and lowest
position, the distance between the top of the needle eye and the tip of the hook should be in the range of 3.0 to 3.6 mm.
1. Remove the face cover (see page 4), needle plate and bobbin holder.
2. Turn on the power switch.
3. Select the pattern (simple zigzag). (maximum zigzag width)
4. Turn the handwheel toward you until the tip of hook meets the right side of the needle.
5. Loosen the setscrew.
6. Adjust the height of the needle bar by moving the needle bar upward or downward without turning it.
(Make sure that the needle setting groove of the needle bar is in the front).
7. Tighten the setscrew.
8. Insert the bobbin holder, then attach the needle plate and face cover.
Needle plate
Setscrew
Bobbin holder
Needle setting groove
Tip of hook meets right side of needle
Needle #14
Hook race
3.0-3.6 mm
Upper edge of needle eye
Hook race unit
12