3D Connexion 7318 instruction manual Changing Needles, Needle and Thread Chart

Changing Needles

w q

q

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CAUTION:

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.

zLoosen the needle clamp screw by turning it counterclockwise.

Remove the needle from the clamp. q Needle clamp screw

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Needle and Thread Chart

xInsert 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.

rGap

WEIGHT	FABRIC	TYPE of NEEDLE	NEEDLE SIZE
Very Light	Chiffon, Georgette, Fine Lace, Organdy	Universal	9 (65)
	Net, Tulle	Ball Point	9 (65)
Light	Batiste, Voile, Lawn, Pure Silk, Crepe de Chine,	Blue Tipped Needle	11	(75)
	Sheer Crepe, Chambray, Handkerchief Linen,	Universal	11	(75)
	Gingham, Challis, Percale, Wool Crepe, Peau de Soie,		12	(80)
	Taffeta, Satin, Silk Surah, Satin-backed
	Crepe, Qiana
	Single Knits, Jersey, Swimwear, and Tricot	Blue Tipped Needle	11	(75)
		Ball Point	11	(75)
	Leather, Suede	Wedge Point	11	(75)
		Leather Needle
Medium	Flannel, Velour, Velvet, Muslin, Velveteen,	Universal	14	(90)
	Poplin, Corduroy, Broadcloth, Linen, Chintz,
	Gabardine, Felt, Terry, Burlap, Quilted Fabrics
	Double Knits, (synthetic and natural) Stretch	Ball Point	14	(90)
	Velour, Stretch Terry, Sweater Knits
	Leather, Vinyl, Suede	Wedge Point	14	(90)
		Leather Needle
Heavy	Denim, Sailcloth, Ticking	Denim Needle	16	(100)
	Double Faced Wool, Heavy Coating, Fake Fur,	Universal	16	(100)
	Drapery Fabrics
	Leather, Suede	Wedge Point	16	(100)
		Leather Needle	18	(110)
Very Heavy	Canvas, Duck, Upholstery Fabrics	Universal	16	(100)
	Topstitching for Special Finishes	Topstitching Needle	14	(90)

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