35
MODEL 520
ADJUSTING THE BOBBIN WINDER SWITCH
TO ADJUST THE BOBBIN WINDING SWITCH
1. Remove the front cover (see page 6 and 7).
2. Set the bobbin winder arm in the sewing position and loosen the setscrew.
Adjust the clearance between the bobbin winder arm and the switch fixing plate to 0.7 to 13mm.
3. Tighten the setscrew.
4. Install the front cover.
TO CONFIRM:
Turn the power switch on.
The led displays when the bobbin winder spindle is set the bobbin winding position, and
when the bobbin winder is returned to the sewing position.
Setscrew
Switch fixing
plate
Approx.
07. to 1.3 mm
(Bobbin winding)
Bobbin winder arm
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