Janome JW8100 Instruction Book
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Janome JW8100 Instruction Book

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April 20, 2025

This machine doesn't need to be oiled?

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Summary of Contents for Janome JW8100

  • Page 1 Instruction Book...
  • Page 3 IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance, basic safety precautions should always be followed, including the following: This sewing machine is designed and manufactured for household use only. Read all instructions before using this sewing machine. DANGER — To reduce the risk of electric shock: 1.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS NAMES OF PARTS DECORATIVE STITCHING Names of Parts ............... 3 Patchwork ..............44 Standard Accessories ............ 4 Shelltuck ............... 44 Stitch Chart ..............4 Applique ............... 45 Fringing................. 46 GETTING READY TO SEW Drawn Work ..............46 Connecting the Power Supply ........

  • Page 5: Names Of Parts Names Of Parts

    NAMES OF PARTS Names of Parts Upper thread guide Bobbin winding tension disk Spool holder (large) Spool pin Hole for extra spool pin Bobbin winder spindle Bobbin winder stopper LCD display Function keys Speed control slider Needle up/down button Auto-lock button Reverse button Start/stop button Extension table (Accessory box)

  • Page 6: Standard Accessories

    Standard Accessories Zigzag foot: A (set on the machine) Zipper foot: E Satin stitch foot: F Automatic buttonhole foot: R Spool holder ( X 2) (large) (1 set on the machine) Spool holder ( X 2) (small) Extra spool pin Bobbins ( X 4) (1 set on the machine) Assorted needle set Seam ripper (Buttonhole opener)

  • Page 7: Getting Ready To Sew

    GETTING READY TO SEW Connecting the Power Supply Using the foot control Turn off the power switch. Insert the pin connector into the jack. Insert the machine plug into the power inlet. Insert the power supply plug into the wall outlet. Turn on the power switch.

  • Page 8: Controlling Sewing Speed

    Controlling Sewing Speed Speed control slider Sewing speed can be varied by the speed control slider according to your sewing needs. To increase sewing speed, move the slider to the right. To decrease sewing speed, move the slider to the left. Foot control Depress the foot control to start the machine.

  • Page 9: Free-Arm Sewing

    Free-arm Sewing Free-arm is useful for sewing tubular garments and for darning knee or elbow areas. q Free-arm Machine Operating Buttons q Start/Stop button Press this button to start or stop the machine. The machine starts running slowly for the first few stitches, and it then runs at the speed set by the speed control slider.

  • Page 10: Lcd Display

    LCD Display The LCD display shows following information when the machine is turned on. q Identification letter of the recommended foot w Stitch pattern number Cursors r Stitch width t Stitch length Function Keys Mode key Each time you press the mode key q, the cursor will shift and the mode will change in the following order: (1) Pattern selection mode (first and second digits) (2) Pattern selection mode (second digit)

  • Page 11: Presser Foot Lifter

    Presser Foot Lifter The presser foot lifter raises and lowers the presser foot. You can raise the foot about 1/4˝ (0.6 cm) higher than the normal up position for easy removal of the presser foot, or to help you place thick material under the foot. q Presser foot lifter w Normal up position Highest position...

  • Page 12: Adjusting The Needle Thread Tension

    Adjusting the Needle Thread Tension Straight stitch balanced tension The ideal straight stitch has threads locked between two layers of fabric, as illustrated (magnified to show detail). If you look at the top and bottom of the seam, notice that the stitches are evenly balanced.
  • Page 13 Zigzag stitch For an ideal zigzag stitch, the bobbin thread does not show on the right side (top side) of the fabric, and the needle thread shows slightly on the wrong side (bottom side) of the fabric. See the illustrations for the correct appearance. To match this appearance, adjust the needle tension as necessary.

  • Page 14: Dropping Or Raising The Feed Dog

    Dropping or Raising the Feed Dog The drop feed lever is located underneath the free arm bed on the back of the machine. To drop the feed dog, push the lever in the direction of the arrow q. View from the rear To raise the feed dog, push the lever in the direction of the arrow w, as illustrated, and turn the handwheel toward you.

  • Page 15: Changing The Needle

    Changing the Needle CAUTION: Turn OFF the power switch before changing the needle. Raise the needle to its highest position by turning the handwheel counterclockwise, and lower the presser foot. Loosen the needle clamp screw by turning it counterclockwise. Remove the needle from the needle clamp.

  • Page 16: Setting The Spool Of Thread

    Setting the Spool of Thread Horizontal spool pin Lift up the spool pin. Place a spool of thread on the spool pin. Attach the large spool holder, and press it firmly against the spool of thread so that the spool rests on the supporter.

  • Page 17: Bobbin Winding

    Winding the bobbin NOTE: Set the speed control slider at its fastest position for bobbin winding. Draw the thread from the spool and pass the thread around the bobbin winding tension disk. q Bobbin winding tension disk x Thread through the hole in the bobbin from the inside to the outside.
  • Page 18 Inserting the bobbin CAUTION: Turn OFF the power switch before inserting the bobbin and threading the bobbin holder. Place a bobbin in the bobbin holder with the thread running off counterclockwise. q End of thread x Guide the thread into the first notch w on the front side of the bobbin holder.

  • Page 19: Threading The Machine

    Threading the Machine Raise the presser foot. Press the needle up/down button q to raise the thread take-up lever to its highest position. q Needle up/down button CAUTION: Turn OFF the power switch before threading the machine. Draw the end of the thread around the upper thread guide.

  • Page 20: Needle Threader

    Needle Threader CAUTION: Turn off the power switch when using the needle threader. Lower the presser foot. Raise the needle to its highest position. Pull down the needle threader knob as far as it will go. The hook comes out through the needle eye from behind.

  • Page 21: Drawing Up The Bobbin Thread

    Drawing up the Bobbin Thread Raise the presser foot. Hold the needle thread lightly with your left hand. x Turn the power switch on. Press the needle up/down button twice to lower and raise the needle to pick up the bobbin thread. q Needle up/down button Pull both threads 4˝...

  • Page 22: Basic Sewing

    BASIC SEWING Straight Stitch Sewing q Stitch pattern: 00 or 03 w Needle thread tension: 2 to 6 Presser foot: Zigzag foot A NOTE: When sewing with the satin stitch foot F or buttonhole foot R, pull the threads to the left to hold them. Starting to sew Raise presser foot and position the fabric next to a seam guide line on the needle plate.

  • Page 23: Sewing From The Edge Of Thick Fabric

    Sewing from the Edge of Thick Fabric The black button on the zigzag foot locks the foot in the horizontal position. This is helpful when starting sewing from the far edge of thick fabrics or sewing across a hem. Lower the needle into the fabric at the point where you wish to start sewing.

  • Page 24: Altering The Needle Drop Position

    Altering the Needle Drop Position The needle drop position can be altered for straight stitch patterns 00 to 04, 55 and 56. Press the mode key q until the cursor w appears under the stitch width value. Press the “–” sign on the value set key to move the needle to the left.

  • Page 25: Lock-A-Matic Stitch

    Lock-a-matic Stitch q Stitch pattern: w Thread tension dial: 2 to 6 Presser foot: Zigzag foot A Use this stitch to secure the beginning and the end of a seam with backstitching. When you reach the end of the seam, press the reverse button once.

  • Page 26: Stretch Stitch

    Stretch Stitch q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Zigzag foot A This stitch is a narrow stretch stitch designed to eliminate puckering on knit fabrics and bias seams, while permitting the seam to be pressed completely open flat. Use this stitch for seaming fine fabrics.

  • Page 27: Zigzag Stitch

    Zigzag Stitch q Stitch pattern: 06 or 07 w Thread tension dial: 3 to 7 Presser foot: Zigzag foot A The zigzag stitch is one of the most useful and versatile stitches. It is used for overcasting, mending, appliqué, and also used as a decorative stitch.

  • Page 28: Overcasting With Zigzag Stitch

    Overcasting with Zigzag Stitch q Stitch pattern: w Thread tension dial: 3 to 7 Presser foot: Zigzag foot A The zigzag stitch is used on the seam allowance to prevent fabric from fraying at raw edges. Multiple Zigzag Stitch q Stitch pattern: w Thread tension dial: 3 to 7 Presser foot: Zigzag foot A...

  • Page 29: Knit Stitch

    Knit Stitch q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Zigzag foot A Place your fabric to allow a 5/8˝ (1.5 cm) seam. Trim excess close to the stitching. Be careful not to cut the stitches. Double Overedge Stitch q Stitch pattern: w Thread tension dial: 3 to 7...

  • Page 30: Buttonholes

    Buttonholes The following 7 types of buttonholes are available. q Square buttonhole This buttonhole is widely used on medium to heavy q w e r t y u fabrics. w Round-end buttonhole This buttonhole is used on fine to medium weight fabrics, especially for blouses and children’s clothes.
  • Page 31 Square Buttonhole q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Automatic buttonhole foot R The size of a buttonhole is automatically set by placing a button in the rear of automatic buttonhole foot R. The button holder of the foot takes a button size of 1 cm (3/8˝) to 2.5 cm (1˝) in diameter.
  • Page 32 Lower the presser foot and pull the buttonhole lever down as far as it will go. y Buttonhole lever NOTE: The reference lines on the buttonhole foot can be used as a positioning guide. Make sure there is no gap between the slider and front stopper, otherwise the buttonhole will be out of position or there will be a sewing gap.
  • Page 33 The buttonhole is sewn in the sequence as shown. automatically with the needle in the up position. Remove the fabric and place a pin just below the bartack to prevent accidentally cutting the stitches. Cut the opening with the seam ripper. !3 Pin !4 Seam ripper buttonhole lever upward as far as it will go.

  • Page 34: Round-End And Fine Fabric Buttonhole

    Round-end and Fine Fabric Buttonhole q Stitch pattern: 19 and 20 w Thread tension dial: 1 to 4 Presser foot: Automatic buttonhole foot R Sewing procedure is the same as square buttonhole. The buttonhole width can be varied from 2.5 to 5.5. The stitch density can be varied from 0.2 to 0.8.

  • Page 35: Corded Buttonhole

    Corded Buttonhole q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Automatic buttonhole foot R Use the same procedure as the square buttonhole sewing. Set the stitch width to match the thickness of the cord used. With the buttonhole foot raised, hook the filler cord on the spur at the back of the buttonhole foot.

  • Page 36: Welted Buttonhole

    Welted Buttonhole q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Automatic buttonhole foot R A welted buttonhole is made by stitching a strip or patch of fabric to the buttonhole. Welted buttonholes are particularly suitable for tailored garments, but are not recommended for sheer or delicate fabrics where the patch might show through or add bulk.
  • Page 37 Fold over the length of the garment fabric, sew back and forth beside the original seam to secure flaps of the patch. r Wrong side of garment fabric t Sew back and forth , Fold over the end of fabric and sew back and forth three times over the triangular end.

  • Page 38: Darning Stitch

    Darning Stitch q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Automatic buttonhole foot R Starting to sew Attach the automatic buttonhole foot R and pull the button holder q all the way out. Draw the needle thread to the left through the hole of foot.

  • Page 39: Tacking

    Tacking q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Satin stitch foot F Tacking is used to reinforce pockets, crotches and belt carriers where extra strength is needed. Start sewing Start the machine and sew until the machine stops automatically.

  • Page 40: Eyelet

    Eyelet q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Satin stitch foot F The eyelet is used for belt holes etc. Starting to sew Lower the needle at the starting point and lower the presser foot. Start the machine. The machine will stop automatically when completed.

  • Page 41: Zipper Sewing

    Zipper Sewing q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Zigzag foot A Zipper foot E Attaching the zipper foot Fit the pin on zipper foot E to the groove on the foot holder. q Groove w Pin (A): To sew the left side of the zipper, attach the zipper foot with the pin on the right-hand side.
  • Page 42 Start sewing Fold back the left seam allowance. Turn the right seam allowance under to form a 0.2 to 0.3 cm (1/8˝) margin. Place the zipper teeth next to the fold and pin in place. Set the stitch length and thread tension back to the original setting.
  • Page 43 Close the zipper and spread the fabric open flat with the right side facing up. Attach the Zigzag foot A. Adjust the stitch length to 5.0, stitch width to 3.5 (default value) and the thread tension dial to 1. Baste the opened fabric and zipper tape together. Basting stitch Zipper tape Attach the zipper foot E with the left pin.

  • Page 44: Blind Hemming

    Blind Hemming q Stitch pattern: 12 or 13 w Thread tension dial: 1 to 4 Presser foot: Zigzag foot A Fold a hem with the wrong side of the fabric up to form a 0.5 cm (1/4˝) allowance. q Wrong side of fabric w 0.5 cm (1/4˝) (1) On heavyweight fabrics that tend to ravel, the raw edge should be overcast first.

  • Page 45: Button Sewing

    Button Sewing q Stitch pattern: w Thread tension dial: 3 to 7 Presser foot: Satin stitch foot F r Feed dog: Lowered Lower the feed dog. Set the speed control slider at a slower speed. Set the stitch length at the minimum (0.2). q Stitch length (0.2) Match the holes of button to the horizontal slot of the presser foot and lower the foot to hold the button in place.

  • Page 46: Decorative Stitching Patchwork

    DECORATIVE STITCHING Patchwork q Stitch pattern: 55 and 46 w Thread tension dial: 3 to 6 Presser foot: Zigzag foot A Satin stitch foot F * The stitch patterns 08, 14, 42, 43 and 62 can also be used. • Patchwork piecing Place the patchwork pieces right sides together.

  • Page 47: Applique

    Applique q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Satin stitch foot F * The stitch patterns 29, 30, 31, 32 and 33 can also be used. Place an applique on the fabric and baste or pin it in place. Lower the needle at the outer edge of the applique.

  • Page 48: Fringing

    Fringing q Stitch pattern: w Thread tension dial: 1 to 4 Presser foot: Satin stitch foot F Fringing adds a special touch on table linens and shawls. Choose a firm, woven fabric like linen where threads can be removed easily. Carefully cut the fabric on the grain.

  • Page 49: Cross Stitch

    Cross Stitch q Stitch Pattern: w Thread tension dial: 3 to 6 Presser foot: Satin stitch foot F You can make cross stitch designs with these patterns, in half the time it would take if embroidered by hand. Use a plain close woven fabric such as linen or wool flannel.

  • Page 50: Scallop Stitch

    Scallop Stitch q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Zigzag foot A * The stitch patterns 45 and 71 can also be used. Sew the stitches approximately 1 cm (3/8˝) inside the fabric edge. Trim the outside of the stitches as shown. Make sure not to cut the thread.

  • Page 51: Stippling Stitch

    Stippling Stitch q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Satin stitch foot F A pre-programmed stippling stitch is a fast and easy method to quilt small areas. Place a batting (wadding) between quilt top and backing fabric.

  • Page 52: Decorative Stitches

    Decorative Stitches q Stitch pattern: w Thread tension dial: 3 to 6 Presser foot: Satin stitch foot F * Stitch patterns 76 to 99 can also be used. For the best sewing results, carefully align and guide the fabric when you sew with decorative stitches. Use a tear-way backing if necessary.

  • Page 53: Care Of Your Machine Cleaning The Hook Race And Feed Dog

    CARE OF YOUR MACHINE Cleaning the Hook Race and Feed Dog WARNING: Turn the power switch off and unplug the machine before cleaning. Do not dismantle the machine other than as explained in this section. CAUTION: Do not store the machine in a high-humidity area, near a heat radiator, or in direct sunlight.

  • Page 54: Problems And Warning Signals

    Problems and Warning Signals If a buzzer sounds and the LCD screen shows a warning sign, follow the guidance below. Warning Sign Cause Try this 1. The start/stop button is pressed with the foot control Disconnect the foot control. connected. Contact the service center 2.

  • Page 55: Troubleshooting

    Troubleshooting Condition Cause Reference The needle thread 1. The needle thread is not threaded properly. Page 17 breaks 2. The needle thread tension is too tight. Page 10-11 3. The needle is bent or blunt. Page 13 4. The needle is incorrectly inserted. Page 13 5.

  • Page 56: Stitch Chart

    Stitch Chart...
  • Page 60 811-800-202(ENG)

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