26
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.
To check:
1. Attach the needle #14.
2. Turn the power switch ON while pressing the Start/Stop
button and the Reverse stitch button to enter the factory
setting mode.
Press "Phase" key.
3. Turn the handwheel toward you slowly until the needle
from its lowest position until "Bight" changes from L to H.
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 top cover (see page 2).
2. Turn the handwheel toward you and raise the needle
7.7 mm above the surface of the needle plate.
3. Loosen the setscrew of the upper shaft shield plate.
Turn the upper shaft shield plate until "Bight" changes from
L to H.
TIghten the setscrew.
The position of the upper shaft shield plate should be in the
center of the upper shaft sensor.
Start/Stop button
Reverse stitch
button
⇒
Needle #14
Surface of
needle plate
7.2 – 8.2 mm
Setscrew A
Upper shaft sensor
Upper shaft Shield plate
Even
Sensor
Upper shaft shield plate
