4-3
Feed
Dog
The
feed
dog should
be
centered
in
the throat plate with
equal clearance
on
all
sides and ends with the feed travel
set to the desired stitch length (Refer to Figure
10).
At the highest point
of
travel, tips
of
the feed dog teeth
should extend 1.2
mm
above the throat plate and parallel
to same. The adjustment procedure
is
as
follows:
a) Vertical Adjustment (Figure
10
refers)
Place the feed dog in the highest position in its travel.
Remove the screw
(C) and adjust the feed
dog
so
that tips
of
the feed dog teeth extend 1.2
mm
above the throat plate. Adjust the
screw
(D)
so
that
its head will hit the bottom
of
the feed dog and sup-
port
same
from below. Firmly tighten the feed dog
with the
screw
(C).
b)
Level
Adjustment (Figure
11
refers)
Place the feed dog in the highest position in its
travel, loosen the nut (A), and
tum
the screw
(B)
to adjust the levelness
of
the feed dog. Turning the
screw to the right will make the leading edge
of
the
feed dog raised and turning it to the left makes it
go
down.
When
the required levelness
is
obtained,
tighten the nut (A) firmly.
c) Adjustment in Longitudinal Direction
(Figure
12
refers).
Loosen the nut (E) and move the feed rocker
(C) in
the longitudinal direction. After
thll adjustment,
tighten the nut
(E).
d) Adjustment in Crosswise Direction (Figure 12 refers)
Loosen the nut (E) and screw (A), and move the feed
rocker
(C) in the crosswise direction. After the
adjustment, first tighten the screw (A), and then
confrrm that the
feed
rod (D)
will
move freely
before tightening the nut (E) firmly.
-6-
0
B A
Fig.
10
B
A
Fig.
11
c
B
Fig. 12
From the library of: Superior Sewing Machine & Supply LLC
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