TIMING
BETWEEN
THE
HOOK
AND
NEEDLE
After setting the needle bar height as stated 1. or 2., confirm as under.
Set the stitch length to 0, turn the balance wheel to lower the needle bar to
its lowest point turn the wheel toward you, and when the needle raises 2.1 mm
from the lowest point of its travel, normally the hook point is at the center
of the
needle,
and
the
measurement
between
the
hook
point
and
the
upper
end of the needle eye should be 2 mm, further the clearance between the
hook
point
and
the
needle
hollow
should
be
0.05
to 0.2
mm.
If they are not measured as above, adjustments are made as follows:
2.1mm
Fig.
18
TIMING
ADJUSTMENT
Loosen
the
two
set
screws
{1,
Fig.
19A),
set
the
position
of
the
large
gear
(2,
Fig,
19A)
to the
center
of the
small
gear
(5,
Fig.
3)
and
tighten
the
two
set
screws
securely.
Loosen
the screw (6, Fig. 3) on the small gear, move the
hook
and set
the
proper
timing.
Then,
tighten
the
screws
securely.
For
model
LSW-27BLK
Loosen
the
two
set
screws
(1)—Fig.
19A—,
move
the
large
drive
gear
(2)
to
right
or
left
and
set
the
proper
timing.
Then,
tighten
the
screws
securely.
Fig.
19A
From the library of: Superior Sewing Machine & Supply LLC
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