Singer 471U - Position Adjustment

H] Buttonhole width and reference position adjustment
Iftheseare not properlyadjusted,seamthreadsamy break,and the needle maystrikethe needle platewhenthe
needle zigzag width is very great.
1. Buttonhole reference position adjustment
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Reference line A
Reference line B
This machine uses the right side of the stitch as the reference line in both forward and return strokes. Besure to
set the needle at the right side when making these adjustments.
1. Turn the adjustment screw O and adjust the position of reference line A so that seam threads are not broken
when the cutter falls. Turn the adjustment screw to the right to move the reference line right.
2. Adjust reference lineBasabovebyturningadjustment screw 0. Notethat contraryto Aabove,lineB moves to
2. Buttonhole width adjustment
To adjust zigzag width Wl, turn adjustment screw O; to adjust bar tacking width W2, turn screw O- Both
zigzag width WI and bar tacking width W2 will increase as the screws are turned right.
The needle zigzag width adjustment range is greater than the width of the upper clamping foot. Whenever the
bar tackingwidth isadjustedto greaterthan 4mm,turn the pulleyby handand makesurethat the needle does
not strike the upper clamping foot on either the forward or return stroke.
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From the library of: Superior Sewing Machine & Supply LLC