Height Adjustment Of Feed Dog; Adjustment Of Feed Lift Shaft Cam And Lower Feed Cam - SunStar KM-1070 SERIES User Manual

8.4) Height adjustment of feed dog

Set the stitch count at the minimum and place the feed
dog at the maximum height. The normal condition is
that the feed dog
plate . If it is not in the normal condition, take actions
as below to adjust the feed dog height.
1) Turn the upper shaft pulley of the sewing machine to
place the feed dog at the highest position.
2) Lean the sewing machine backward.
3) Slightly loosen the fixing screw for the feed lift shaft
crank .
4) Turn the feed lift shaft crank
height to be 0.5mm.
5) When adjustment is completed, tightly fasten the
fixing screw .
When the feed lift shaft crank
Caution
8.5) Adjustment of feed lift shaft cam and
lower feed cam
1) Set the stitch count at maximum and pull down the
needle bar at the lowest point.
2) Make the second fixing screw
cam move vertically and tighten the fixing screw.
3) Lift the needle bar to the highest point.
4) Move the first fixing screw
vertically, and tighten the fixing screw.
5) When the adjustment is made as above, the tips of
the needle and the feed dog
the needle plate .
Otherwise, make adjustment as above following the
above methods.
34
is located 0.5mm above the needle
to adjust the feed dog
of the feed lift shaft
of the lower feed cam
contact the face of
is turned, make sure that it does not move toward the shaft.
[Fig. 8-7]
[Fig. 8-8]