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Brother EF4-V41 - Adjusting the Height of the Knife

Brother EF4-V41
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[1]
Adjusting
the
height
of
the
knife
, Align
the
lower knife
tip
with
the
needle
plate top.
0.5-1
mm
(1)
Loosen
the
bolt
0.
AI
ign the
tip
of
the lower knife @
with
the
top
of
the needle plate
@).
(2)
Turn
the
pulley
to
move the upper knife e
to
its lowest position.
(3)
Loosen
the
bolt
@.
Move the upper knife e up or down
to
set the overlap between the upper knife
e and lower knife@
to
0.5- 1 mm.
* Make sure
that
the upper knife e
does
not strike
front
cover
(S)
fi.
--
Stitch
width
(4)
Position the lower knife @
so
that
it
is
equal
to
the
width
of
the stitch tongue
of
the needle plate
@).
.
NOTE:
In
order
to
establish the position
of
the
knives,
move the upper knife
e overlap
the
lower
knife
@,
and temporarily loosen the set screw
@)
(so
that
due
to
the action
of
the spring the
lower knife
@will
push
up
against the upper
knife
e),
and tighten the set
screw@).
-71-
From the library of: Superior Sewing Machine & Supply LLC

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