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Changing Needles
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.
zLoosen the needle clamp screw by turning it counterclockwise.
Remove the needle from the clamp. q Needle clamp screw
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
r 
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
Needle and Thread Chart
WEIGHT | FABRIC | TYPE of NEEDLE | NEEDLE SIZE | ||
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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 |
| 12 | (80) | |
| Soie, Taffeta, Satin, Silk Surah, |
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| Crepe, Qiana |
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| Single Knits, Jersey, Swimwear, and Tricot | Blue Tipped Needle | 11 (75) | ||
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| Ball Point | 11 (75) | ||
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| Leather, Suede | Wedge Point | 11 (75) | ||
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| Leather Needle |
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Medium | Flannel, Velour, Velvet, Muslin, Velveteen, | Universal | 14 | (90) | |
Poplin, Corduroy, Broadcloth, Linen, Chintz, |
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| Gabardine, Felt, Terry, Burlap, Quilted Fabrics |
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| Double Knits, (synthetic and natural) Stretch | Ball Point | 14 | (90) | |
| Velour, Stretch Terry, Sweater Knits |
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| Leather, Vinyl, Suede | Wedge Point | 14 | (90) | |
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| Leather Needle |
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Heavy | Denim, Sailcloth, Ticking | Denim Needle | 16 | (100) | |
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Double Faced Wool, Heavy Coating, Fake Fur, | Universal | 16 | (100) | ||
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| Drapery Fabrics |
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| Leather, Suede | Wedge Point | 16 | (100) | |
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| Leather Needle | 18 | (110) | |
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Very Heavy | Canvas, Duck, Upholstery Fabrics | Universal | 16 | (100) | |
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| Topstitching for Special Finishes | Topstitching Needle | 14 | (90) | |
10