20
⇒
⇒
Upper shaft shield plate position
When the machine is set for zigzag stitch, the needle should start to swing 7.2 to 8.2 mm above the surface of the
needle plate.
To check:
1. Attach the needle #14.
2. Remove the top cover (see page 2)
3. Turn the power switch ON while pressing start/stop
button and reverse stitch button to enter the factory
setting mode.
Press “Phase” key.
4. Turn the handwheel toward you to raise the needle at
7.7 mm above the surface of the needle.
5. Loosen the setscrew A of the lower shaft shield plate.
Turn the upper shaft shield plate away from you slightly,
then turn upper shaft shield plate toward you slowly
until the “Bight” window changes from “H” to “L”.
6. Position the lower shaft shield plate in the center of slit
of the lower shaft sensor (see Figure. 1).
Tighten the setscrew A.
Mechanical adjustment
Needle #14
Surface of
needle plate
7.2 – 8.2 mm
Reverse
stitch button
Start/stop
button
Setscrew A
Upper shaft shield plate
Shield plate (Feed)
Shield plate (Zigzag width)
Shield plate
Even
Sensor
Bight sensor
(Zigzag sensor)
Feed sensor
Fig. 1
Fig. 2
Fig. 3
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