SINGER W8910 - Manual (Page 11)

Function
Presser foot pressure
The presser foot pressure can be adjusted by means of
the graded dial on the left side of the machine. Adjust­
ment will be easier if you lower the presser bar lever
first. Normal pressure is obtained by setting the dial at
the white dot but for some fabrics it may be better to
reduce or increase the pressure. The higher the number
the greater the pressure.
By setting the dial at the symbol iPl the presser
foot pressure is completely released. This setting should
be used when free-hand sewing with the darning foot.
You will find the darning foot under “Extra acces­
sories” on page 57.
If you turn the graded dial for the presser foot pressure
to the lowest number, it is possible to darn with presser
foot A. Lower the feed teeth and move the fabric for­
ward, backward and sideways by hand.
Lowering the feed teeth
Lower the feed teeth by pressing the push-button
down and raise them by re-pressing the push-button. The
feed teeth will raise when you resume sewing.
The feed teeth should be lowered for a certain type of
darning and when sewing on buttons. It is also easier to
get thick garments under the presser foot if the feed teeth
are not above the level of the stitch plate.