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10) Height and inclination Adjustment of Feed Dog
(1) Height adjustment of the feed dog
The height of the feed dog is adjusted by moving the lifter crank① after the lifter crank fixing screw② is loosened. The
standard height from the top face of the needle plate to the top of the feed dog when the stitch length dial is at its
maximum and the feed dog is at its highest point is 0.6~0.7mm for very thin materials, 0.75~0.85mm for general
materials, and 1~1.2mm for heavy materials. (See Fig. 30)
(2) Inclination adjustment of the feed dog
A. To adjust the inclination of the feed dog, first loosen the feed dog support shaft fixing screw⑥ in the horizontal
pushing crank④ and adjust by turning feed dog support shaft⑤ up and down in the direction of the arrow with a
driver. Turning the feed dog support shaft⑤ clockwise will raise the front part of the feed dog, while turning it
counterclockwise will lower the front part of the feed dog. (See Fig. 31.)
B. The standard inclination of the feed dog is when the carved sign on the feed dog support shaft is horizontally in line
with the horizontal pushing crank as in picture
that the front is a little higher than the back as in picture
front of the feed dog as in picture
C. Adjustment of the inclination of the feed dog③ will result in a change in the height of the feed dog, so recheck the height.
①
②
For very thin
materials
For general
materials
For heavy materials
in Fig. 31.
Feed Dog
in Fig. 31. However, to prevent puckering, adjust the feed dog to
in Fig. 31. Also, to prevent material jamming, lower the
(Front)
Feed Dog
Needle Plate
[Fig. 30]
(Higher front)
(Back)
(Standard position)
(Lower front)
[Fig. 31]
21
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