~
Feed
mechanism
(3)
Slide block
Approx.6mm
Main feed bar
Differential feed bar
(Raise
the
differential link lever.)
(Lower
the
differential link lever.)
•
~
To
the
farthest forward position
-........
To
the
farthest
forward
position
[Adjusting
the
standard feeding position
of
the differential feed arm]
{1)
Set
the
stitch length
to
the
maximum, and
turn
the pulley
to
set
the differential feed arm
@)
to
the
extreme back.
(2)
Temporarily
tighten
the
bolts
for
the
differential link lever
C@
and
the differential feed arm@).
(3)
Loosen
the
set screw knob
@.
Adjust the back and forth inclination
of
the differential feed arm
@)so
that
it
stops by moving
the
differential feed adjust lever@).
Then
tighten the bolts again.
[Adjusting the feed
of
the main feed bar and
the
differential feed bar]
* Before this adjustment, set
the
movement
of
the main feed dog
to
3.8 mm.
(1) Temporarily tighten
the
differential link lever
C@
until
the
slide block
of
the differential feed arm
@)
is
positioned 6 mm above
the
differential feed arm
@)
when the differential feed adjust lever
@)
is
aligned
with
the
maximum setting.
(2)
Align
the
differential feed adjust lever @)to the upper third reference line (for plain stitching). Adjust
the
timing
between
the
main feed bar and
the
differential feed bar by moving
the
differential
link
lever @ up
or
down
so
that
the
main feed bar
is
even
with
the differential feed bar when they move
to
the
farthest forward position.
-47-
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