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Seiko CH-2B - 12 Adjusting on the each Points; (A) Adjusting Needle Position against Needle Hole of; (B) Adjusting of Feed Dog Height

Seiko CH-2B
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12
Adjusting
on
the
Each
Points
(A)
Adjusting
Needle
Position
Against
Needle
Hole of
the
Feed
Dog. {7B & 8B
Types)
Needle
should
be
positioned
at
the
center
of
needle
hole
of
feed
dog
and
moved
together
with
the
feed
dog.
(a)
Loosen
feed
(upper)
shaft
connecting
screw
(2),
upper
feed
length
will
differ
by
the
moving
(push-in
or
pull
out)
of
feed
(upper)
shaft
connector
(B) (1).
(b)
Loosen
feed
(upper)
shaft
connector
(A)
screw
(3),
and
needle
set
at
the
center
of
needle
hole
of
feed
dog,
then
tighten
the
screw
(3).
(Needle
dropping
point
is
to
be
set
at
the
center
of
needle
hole
of
the
feed
dog.)
n
(Note)
Feed
(upper)
shaft
connector
(A) (4) is fixed
and
the
screw
(3)
is
tightened
for
the
prevention
of
the
moving
of
leftward
and
rightward.
(B)
Adjusting
of
Feed
Dog
Height
Taking
off
the
needle
in 7B
and
8B.
The
height
of
feed
dog
is
adjusted
1.3mm
-
1.5mm
above
the
surface
of
the
throat
plate,
at
the
lowest
point
of
needle
bar
by
feed
dog
height
adjustable
screw
(1).
In 6B. 2B
types;
The
height
of
feed
dog
is
adjusted
1.3mm
-1.5mm
above
the
surface
of
the
troat
plate
at
the
lowest
point
of
needle
bar.
Refer
to
Removal
of
Shuttle
Race
Body
m
l.Smm
-
1.5nim
- 7
From the library of: Superior Sewing Machine & Supply LLC

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