Changing The Needle; Thread And Needle Chart - ALFA COMPAKT 500E Manual De Instrucciones

w
r
q
e
14

Changing the Needle

WARNING:
Always make sure to turn the power switch off and
disconnect the machine from power supply before
changing the needle.
Raise the needle by turning the handwheel and lower the
presser foot.
Turn off the power switch.
Loosen the needle clamp screw by turning it
counterclockwise.
Remove the needle from the clamp.
q Needle clamp screw
Insert a new needle into the needle clamp with the flat
side of the needle to the rear.
When inserting the needle into the needle clamp, push it
up against the stopper pin and tighten the needle clamp
screw firmly.
w Stopper pin
e Flat side
To check needle straightness, place the flat side of the
needle onto something flat (a needle plate, glass etc.)
The gap between the needle and the flat surface should
be consistent.
Never use a blunt needle.
r Gap

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
Medium Linens, Cotton, Piqué, 50 silk
Serge, Double Knits,
weight
Percale
Denim, Tweed,
Heavy
Gabardine,
weight
Suiting, Drapery and
Upholstery Fabric
Needle Size
Thread
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