SINGER W102 - Manual (Page 17)

DROP FEED CONTROL
Fig, 1-}
1. For regular sewing press the button on the right down (See
A Fig. 14) as far as it will go.
2. For light or sheer materials press the left button (See B Fig, 14)
down until the red line is about even with the plate. (If the left
button is too far, press the right button to force the left one up
and repeat the procedure).
3. For darning or free-hand embroidery, press the left button down
¡See B Fig. 14) as far as it will go. (Best results are obtained
when the darning spring is attached to the needle clamp).