(2)
Adjusting the fixed knife height and angle
~During
operation~
~
During thread retention
~
The
fixed knife 0 should
be
flush
with
the
top
of
the
needle plate @
or
up
to
0.2
mm lower. The groove
of
the fixed knife 0 should align
with
the needle plate channel when the knife operates (when
the
cylinder rod
@)
retracts).
(Adjustment)
Loosen
the
bolt
e I and move the fixed knife 0 up
or
down
to
adjust
the
height. Turn
the
knife 0
right
or
left
so
that
the knife 0
is
parallel
to
the
channel in the needle plate @ when the knife 0 operates (when
the
cylinder rod @ extends
to
the
left). Then tighten the
bolt
$.
*
Sew
to
make sure there are neither thread trimming errors nor thread retention errors.
-68-
From the library of: Superior Sewing Machine & Supply LLC
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