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14
NEEDLE BAR HEIGHT
Correct setting
The distance between the upper edge of needle eye and the tip of shuttle hook should be
in the range of 2.9 - 3.5mm when the tip of shuttle hook meets the left side of the needle in
ascending travel of needle from its left and lowest position.
To adjust
1.
Remove the face plate. (See page 3.)
2.
Set the pattern selector dial at “B”. (stitch length dial at any position.)
3.
Remove the shuttle race ring.
4.
Turn the balance wheel toward you until tip of shuttle hook meets the left side of the
needle.
5.
Loosen the needle bar connecting stud set screw.
6.
Adjust the height of the needle bar by moving the needle bar upward or downward
without turning it.
7.
Tighten the set screw.
8.
Attach the shuttle race ring.
9.
Attach the face plate.
Содержание JF1018S
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