21
Even
Sensor
Upper shaft shield plate
Needle #14
Surface of
needle plate
Mechanical adjustment
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.
7.2 – 8.2 mm
Fig. 1
Setscrew A
Feed sensor
Bight sensor
(Zigzag sensor)
Lower shaft
To check:
1. Attach the needle #14.
2. While pressing the needle up/down and lock stitch
buttons, turn the power switch on.
The LCD display “----”.
3. Press “1” key to enter the self-diagnostic mode.
Press the start/stop button 5 times to enter phase
check mode (LCD displays "06" and “PH”.).
4. Turn the handwheel toward you until PH changes to
“ ”
q
to “ ”
w
on LCD.
4. The needle height should be 7.2 to 8.2 mm above from
the surface of the needle plate. If not, adjust the upper
shaft shield position.
To adjust:
1. Remove the machine base.
2. While pressing the needle up/down and lock stitch
buttons, turn the power switch on.
The LCD display "----".
Press “1” key to enter the self-diagnostic mode.
Press the start/stop button 5 times to enter phase
check mode (LCD displays "06" and “PH”.).
3. Turn the handwheel toward you to raise the needle at
7.7 mm above the surface of the needle.
4. Loosen the setscrew A of the lower shaft shield plate.
Turn shield plate until the sensor signal changes from
“ ”
q
to “ ”
w
.
5. Position the lower shaft shield plate in the center of slit
of the lower shaft sensor (see Fig. 1).
Tighten the setscrew A.
q
w
Bight sensor
(Zigzag sensor)
Feed sensor
Setscrew A
