Important Needle Information; Selection Guide - Needle Size, Fabric, Thread; Change The Needle - Singer F687C Instruction Manual

Important Needle Information

Change the needle often. As a general rule,
needles should be changed every 6-8 hours of
actual stitching time.
Always use a straight needle with a sharp point and make sure
the point is not bent or damaged (A).
A damaged needle (B) can cause skipped stitches, breakage or
snapping of the thread. It can also damage the needle plate.
Do not use asymmetrical twin needles (C), they can damage
your sewing machine.
Selection Guide — Needle Size, Fabric, Thread
Needle Size Fabric
70–80 (9–11) Lightweight fabrics: Fine cotton, voile, silk, muslin,
interlock, tricot, jersey, crepe, polyester, chiffon, organza,
organdy
80-90 (11-14 ) Medium weight fabrics: Quilting cotton, satin, double knit,
lightweight wool, rayon, polyester, lightweight linen
90 (14) Medium weight fabrics: Firm woven, medium weight
linen, cotton/polyester blend, terrycloth, chambray,
double knit
100 (16) Heavy weight fabrics: Canvas, wool, denim, home decor,
fleece, heavy knit
110 (18) Heavy weight fabrics: Coat weight wool, upholstery
fabrics

Change the Needle

Note: Before you begin changing the needle, it can be helpful
to place a small piece of paper or fabric underneath the needle
area, over the hole in the needle plate, so that the needle
doesn't accidentally fall down into the machine.
1. Loosen the needle clamp screw. If it feels tight, use the
screwdriver from your accessories to aid with loosening
the screw.
2. Remove the needle.
3. Push the new needle upwards into the needle clamp with
the flat side away from you.
4. When the needle will go up no further, tighten the screw
securely.
A
B
C
Thread
Light duty all purpose thread
Use polyester threads on synthetic fabrics and
all-purpose or cotton thread on natural fabrics
for best results.
Heavy duty thread for needle, with all-purpose
thread for the bobbin.
1 2
3 4
Preparations – 15
English