~ Adjusting timing
of
needle and rotary hook
1/
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1)
Selectthefirstneedlebar
0.
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2)
Remove
the
two
screws and
the
needle plate@.
Aprrox.1 mm
2.5mm
3)
When
the
needle bar
is
raised
2.5
mm
(201°)
above its lowest position (180°), loosen
the
screw 0
of
the
rotary hook
@),
and adjust
so
that
the
needle meets
the
rotary hook point. Then, temporarily
tighten
the
two
stop screws.
At
this time,
the
needle bar height should be about 1 mm. {Figure A) .
4)
As
for
other needle bars,
if
the
gap between
the
needle and rotary hook
point
is
0.01
-
0.2
mm,
tighten
the
3 screws
of
the
rotary hook.
~
Adjusting cloth presser height
Cut and insert.
Adjust
the
cloth presser 0
height
with
the
cushion rubber
@).
The cloth presser 0 height should be raised 1
-
1.5
mm
from
the
needle plate @
at
the
cloth presser's lowest position. {A sheet
of
the
cushion rubber
is
0.5
mmthick.)
~13-
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