1m
Adjusting
the
vertical feed amount
of
the
upper feed dog
(1)
Set
the
set
screw knob
of
the vertical feed length
control plate
0
to
1 - 2
for
front
feed type, 1 - 3
for
back feed type.
(2)
Turn the pulley
to
set
the upper feed dog
@to
its
highest
po!;ition.
(3)
Loosen
the
bolt
of
the vertical feed adjust lever
@).
Adjust the position
of
the vertical feed adjust
lever
@)
so
that
the upper feed dog
is
raised
4.6
mm
above the needle plate top.
(The
distance
is
different depending
on
specification.)
*
For
front
feed type
with
plain stitching
For
example, when the
set
screw knob
of
the vertical
feed length control plate
is
set
to
2,
the
actual
vertical feed amount
of
the upper feed dog
is
as
follows:
4.6-
(0.9
+
0.2)
=
3.5
(upper feed dog height)- (lower feed dog height +
clearance between upper and lower feed dogs)
=
actual vertical feed amount
*
If
the material
is
thin,
set
the vertical feed amount
lower.
If
it
is
thick,
set
the vertical feed amount
higher.
-81-
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