Changing Needles; To Check The Needle; Thread And Needle Chart - ALFA COMPAKT 100 Manual De Instrucciones

Changing Needles

CAUCION:
When changing needles, turn OFF the power switch.
Raise the needle by turning the handwheel
toward you and lower the presser foot.
z Loosen the needle clamp screw by turning it
counterclockwise.
Remove the needle from the clamp.
x Insert the new needle into the clamp with the flat
side away from you.
When inserting the needle into the clamp, push it
up as far as it will go and tighten the clamp screw
firmly with the screwdriver.

To check the needle

Place the flat side of the needle on something
flat (needle plate, glass etc.). The clearance
between the needle and flat surface should be
consistent. Never use a bent or blunt needle.

Thread and Needle Chart

* In general, fine threads and needles are used for
sewing thin fabrics, and thicker threads and needles
are used for sewing heavy fabrics.
* Always test thread and needle size on a small piece
of the fabric which will be used for actual sewing.
* Use the same thread for needle and bobbin.
* When sewing stretch, very fine fabrics and
synthetics, use a stretch needle.
Fabrics
Crepe de Chine, Voile, Fine Silk
Light
Lawn, Organdy,
weight
Georgette,
Tricot
Linens, Cotton, Piqué, 50 silk
Medium
Serge, Double Knits,
weight
Percale
Denim, Tweed,
Heavy
weight Gabardine,
Suiting, Drapery and
Upholstery Fabric
10
Thread Needle Size
9
Fine Cotton or
Fine Synthetic 11
Fine Cotton
Covered
Polyester
11
50 to 80 Cotton or
50 to 60 14
Synthetic
Cotton Covered
Polyester
50 silk 14
or
40 to 50 Cotton 16
40 to 50
Synthetic
Cotton Covered
Polyester