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I. Turn the hand-wheel to bright the needle
bar
down to the lowest point
of
its stroke, and loosen
setscrew
CD.
2. Adjusting the needle
bar
height:
I) While using DB needle, align
marker
line A with the bottom end
of
needle
bar
lower bushing
Q), then tighten setscrew
CD.
2) While using DA needle, align
marker
line C with the bottom end
of
needle
bar
lower
bushing
Q), then tighten setscrew
CD.
3.
Locate the hook position:
1) While using DB needle, loosen the three hook set screw, turn the hand-wheel, and align marker
line B on ascending needle
bar
2 with the bottom end
of
needle
bar
lower bushing Q).
2) While using
DA
needle, loosen the three hook set screw, turn the hand-wheel, and align marker
lineD
on ascending needle
bar
2 with the bottom end
of
needle
bar
lower bushing Q).
4.
After
making the adjustments
mentioned
in the above steps, align
hook
blade
point
~
with
the
center
of
needle ®. Provide a
clearance
of
0.04mm
to 0.1 Omm(reference
value)
between
the needle and the hook, then securely tighten setscrews in the hook.
Caution:
I.
If
the
clearance
between the blade
point
of
hook
and the needle is
smaller
than the specified
value, the blade point
of
hook will be damaged.
If
the clearance is larger, stitch skip-ping will
result.
2.
Use a
hook
of
the same part No, when replacing
your
hook with a new one.
-
16-
From the library of: Superior Sewing Machine & Supply LLC
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
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