Singer SE9150 - Change the Needle; Selection Guide - Needle Size, Fabric, Thread

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16 – Preparations
Note: Before you begin changing the needle, it can be help-
ful 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
multi-purpose tool from your accessories to aid with loos-
ening the screw.
2. Remove the needle.
3. Push the new needle upwards into the needle clamp with
the at side of the needle away from you.
4. When the needle will go up no further, tighten the screw
securely.
Change the Needle
Selection Guide — Needle Size, Fabric, Thread
Needle Size Fabric Thread
70 (9)
80 (12)
Lightweight fabrics: Fine cotton, voile, silk, muslin,
interlock, tricot, jersey, crepe, polyester, chion, organza,
organdy
Light duty all purpose thread
80 (12)
90 (14)
Medium weight fabrics: Quilting cotton, satin, double
knit, lightweight wool, rayon, polyester, lightweight linen
Use polyester threads on synthetic fabrics and
all-purpose or cotton thread on natural fabrics for
best results.
90 (14) Medium weight fabrics: Firm woven, medium weight lin-
en, cotton/polyester blend, terrycloth, chambray, double
knit
90-110 (16) Heavy weight fabrics: Canvas, wool, denim, home decor,
eece, heavy knit
Polyester or all-purpose thread
110 (18) Heavy weight fabrics: Coat weight wool, upholstery
fabrics
Heavy duty thread for needle, with all-purpose
thread for the bobbin.