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ENGLISH
1) Open needle rocking adjustment cover
.
2) Turn the handwheel to bring the needle bar to its
lowest position.
3) Loosen fulcrum shaft
of rocking link B.
• Moving the rocing link B in the direction A
increases the stitch bite width.
• Moving
the rocking link B in the direction
B decreases the stitch bite width.
4) When the stitch bite width is determined, fi x ful-
crum shaft
of rocking link B and close the nee-
dle rocking adjustment cover.
5) After adjusting the stitch bite width in the aforemen-
tioned steps, check the respective items of 11. (2)
Timing between the needle and the looper P.45, 11.
(3) Clearance between the needle and the looper
P.47 and 11. (5) Installing positions of the spread-
ers and timing to open/close the spreaders P.48.
The engraved marker dot is a standard.
Make sure of the amount by putting the
needle tip marks on a sheet of paper or the
like for the precise measurement.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
(6) Adjusting the presser
■
Adjusting the height of the presser
1) Remove auxiliary presser plate cover
.
2) Loosen screw
and adjust the height of the
presser.
The height of the presser is up to 16 mm. If
the height is set to more than 16 mm, when
the cloth setting position is in the front, and
the presser goes up, the presser interferes
with the finger guard.
■
Adjusting the presser pressure
Loosen nut
of the reducing valve and adjust the
pressure with adjustment screw
.
Turning the screw clockwise increases
the presser pressure and turning it
counterclockwise decreases the pressure.
(5) Adjusting the stitch bite width
For all types the stitch bite width which is possible to sew is up to 3.2 mm. If the width exceeds 3.2
mm, stitch skipping may occur. When the width exceeding 3.2 mm is desired to be used, use the
optional looper (left) and spreader (left). However, for T type, the width is up to 3.2 mm.
Needle rocking width
2.0 to 4.0 mm
Lowest position
To align
Center of
rod
Rocking amount
small
2
2.5
3
3.5
4
Standard of stitch bite amount (mm)
B
A
Rocking amount
large
16 mm
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