Singer 9940 Instruction Manual page 16

Select a needle of the right type and size for the
fabric to be sewn.
Turn off the power before removing the
needle.
1. Turn the hand wheel toward you until the
needle is at its highest point.
2. Loosen the needle clamp screw.
3. Remove the needle.
4. Insert new needle into needle clamp with the
flat side to the back and push it up as far as it
will go.
5. Tighten the needle clamp screw.
a. Do not use the bent or blunt needle. Place
needle on a flat plate and check straightness.
Select size of thread and needle in accordance with fabric to be
sewn.
Light Weight - thin
Ctn #80 -100
georgette, Silk 60 - 80
organdy, voile, Syn 80 - 100
taffeta, silk, etc.
Medium Weight -
gingham, pique, Ctn 50 - 80
linen, cotton,
Silk 50
satin, thin
Syn 50 - 80
corduroy, velvet
Heavy Weight - Ctn 40 - 50
gabardine, tweed,
Silk 50
denim, corduroy Syn 50 - 60
Stretch - double Syn 50 - 80
knit, tricot,
Silk 50
spandex, jersey Polyester
Sweatshirt, Swim-
wear, Double Knit,
Polyester
Sweater Knit
Leather
16
9940EFSt.pm6
2000 9/70-11/80
gray shank
2000
gray shank 11/80-14/90
2000
gray shank 14/90-16/100
2001 11/80-14/90
green shank Needle for knit and
synthetic fabric
2001
green shank
2032 Leather
16 2003.9.10, 8:31 PM