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The feed dog should be 0.8-1.2mm above the
surface of the needle plate when at the top of its
travel. If this needs adjusted, tilt the machine so
it is hinged back in the table and loosen screw
(
A
) to adjust the feed dog height as needed
(
Figure 72
).
Normally, the feed dog should be completely
level, but in some instances, setting one
end higher than the other may help fix some
common problems.
Setting the front of the feed dog in the lowest
position may prevent puckering and reduce
skipping of stitches. Setting the front in the
highest position may prevent material from
sliding and can reduce breakage of the bobbin
thread. When sewing conditions require tilting
the feed dog one way or the other, use the
following procedures:
Loosen screw (
B
) and press against the slot of
the eccentric shaft (
C
) with a screwdriver to turn
the shaft left or right (
Figure 73
). Tighten screw
(
B
) when the feed dog is tilted as desired.
There is a small, black mark (
D
) on the eccentric
shaft. Use this mark to determine the desired tilt
of the feed dog (
Figure 74
).
Feed Dog Height Adjustment
In line with
screw (
B
)
Above
screw (
B
)
Below
screw (
B
)
Standard
Front lowest
Front highest
73
74
B
D
C
A
72
Note: These drawings are exaggerated.
Feed dog tilt is far less noticeable
Содержание Fabricator
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