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11

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.

 

q

  Needle thread (top thread)

 

w

  Bobbin thread (bottom thread)

 

e

  To loosen

 

r

  To tighten

When adjusting the needle thread tension, the higher the 

number, the tighter the top thread tension.

Results depend on:

- stiffness and thickness of the fabric

- number of fabric layers

- type of stitch

q

w

e

r

r

q

w

t

e

Tension is too loose

The needle thread shows through on the wrong side of 

the fabric, and the stitch feels bumpy. Turn the dial to a 

higher number to tighten the needle thread tension.

 

q

 Needle thread (top thread)

 

w

  Bobbin thread (bottom thread)

 

e

  To tighten tension

 

r

  Right side (top side) of fabric

 

t

  Wrong side (bottom side) of fabric

r

q

w

t

e

Tension is too tight

The bobbin thread shows through on the right side of the 

fabric, and the stitch feels bumpy. Turn the dial to a lower  

number to loosen the needle thread tension.

 

q

  Needle thread (top thread)

 

w

  Bobbin thread (bottom thread)

 

e

  To loosen tension

 

r

  Right side (top side) of fabric

 

t

  Wrong side (bottom side) of fabric

Summary of Contents for MXL50

Page 1: ...Instruction Book...

Page 2: ......

Page 3: ...rasp the plug not the cord 10 Keep fingers away from all moving parts Special care is required around the sewing machine needle and or cutting blade 11 Always use the proper needle plate The wrong pla...

Page 4: ...of Thick Fabric 21 Using Seam Guides 22 Turning Square Corners 22 Altering the Needle Drop Position 23 Altering the Stitch Length 23 Lock a matic Stitch 24 Locking Stitch 24 Triple Stretch Stitch 24 S...

Page 5: ...oot pressure dial Thread take up lever Lower thread guide Needle clamp screw Needle Presser foot Hook cover release button Hook cover plate Thread cutter Needle plate Feed dogs Foot holder Setscrew Le...

Page 6: ...ot G Overedge foot C 1 4 seam foot O 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 open...

Page 7: ...table Pull the table away from the machine Spread the legs of large extension table Holding the table with both hands and slide it gently to the right Adjust the table height Turn setscrews of the ta...

Page 8: ...71 or YC 485EC 1 is used with this sewing machine For the U S A and Canada only For appliances with a polarized plug one blade wider than the other To reduce the risk of electric shock this plug is in...

Page 9: ...into the holes until the table snaps into the machine w Free arm e Guide r Hole Accessory storage Accessories are stored inside the extension table Pull the lid toward you to open the accessory storag...

Page 10: ...s disconnected the machine will sew in reverse slowly as long as the reverse button is pressed Release the button to stop the machine When any other stitches are selected If you press the reverse butt...

Page 11: ...er press the arrow keys w under the second digit of the pattern number q Arrow keys first digit w Arrow keys second digit e First digit r Second digit Direct pattern selection You can select stitch pa...

Page 12: ...resser foot Place the selected presser foot so that the pin on the foot lies just under the groove in the foot holder Lower the presser bar to lock the foot into the place e Groove r Pin Removing and...

Page 13: ...mber of fabric layers type of stitch q w e r r q w t e Tension is too loose The needle thread shows through on the wrong side of the fabric and the stitch feels bumpy Turn the dial to a higher number...

Page 14: ...m side of the fabric without causing excessive puckering or causing the bobbin thread to show on the right side top side of the fabric Results vary with fabric thread and sewing conditions q Right sid...

Page 15: ...en lowering the feed dog View from the rear q q w Needle Stop Position Setting You can set the needle stop position to up or down when the machine stops To enter the needle stop position setting mode...

Page 16: ...permanent snags or runs in knits fine silks and silk like fabrics q w Fabric Thread Needle Fine Lawn Georgette Tricot Organza Crepe Silk 80 100 Cotton 80 100 Synthetic 80 100 9 65 11 75 Blue tip needl...

Page 17: ...d remove the hook cover plate Lift out the bobbin q Hook cover release button w Hook cover plate e Bobbin q w e r t y u i Extra spool pin The extra spool pin is for winding bobbins without unthreading...

Page 18: ...ght The bobbin icon appears on the LCD display w Bobbin icon b With the free end of the thread held in your hand start the machine Stop the machine when it has wound a few layers and then cut the thre...

Page 19: ...der e Hook cover plate t y u i o 0 r e w q z x c v b x Hold the bobbin with your fingertip so it does not rotate Guide the thread into the front notch of the bobbin holder Pull the thread to the left...

Page 20: ...the check spring holder e w Spool e Check spring holder c Firmly draw the thread up from right to left over the take up lever and down into the take up lever eye v Pass the thread through the lower th...

Page 21: ...q to raise the needle to its highest position Turn the power switch off Pull down the needle threader knob as far as it will go The hook comes out through the needle eye from behind q Needle up down...

Page 22: ...edle 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 c Pull both...

Page 23: ...e button Use the thread cutter on the face cover to cut the threads e Thread cutter BASIC SEWING e w q 4 q w e Changing Sewing Direction Stop the machine Raise the presser foot Pivot the fabric around...

Page 24: ...the needle stop position is set at up position y Using Seam Guides The seam guides on the needle plate and the hook cover plate help you to measure seam allowance The numbers on the needle plate indic...

Page 25: ...le to the left Press the sign on the stitch width adjusting key to move the needle to the right q Stitch width adjusting key q Altering the Stitch Length The stitch length can be altered Press the sig...

Page 26: ...itches and then stop sewing automatically q Reverse button 4 q w e This unique stitch is used where an invisible locking stitch is needed Lower the needle close to the front edge of the fabric The mac...

Page 27: ...this stitch for seaming fine fabrics Sculpture Stitches q Stitch pattern 36 w Thread tension dial 3 to 6 e Presser foot Satin stitch foot F Stretch Stitch q Stitch pattern 05 w Thread tension dial 3...

Page 28: ...sign on the stitch width adjusting key to increase the stitch width Press the sign on the stitch width adjusting key to decrease the stitch width q Stitch width adjusting key w Stitch width The stitch...

Page 29: ...nsion dial 3 to 7 e Presser foot Overedge foot C Multiple Zigzag Stitch q Stitch pattern 07 w Thread tension dial 3 to 7 e Presser foot Zigzag foot A This stitch is used to finish a raw edge of synthe...

Page 30: ...astic into quarters Match those to the center front center back and side seams and pin the elastic to the fabric Place the elastic under the foot and stitch into place while stretch the elastic evenly...

Page 31: ...idely used on medium to heavy fabrics w Round end buttonhole This buttonhole is used on fine to medium weight fabrics especially for blouses and children s clothes e Keyhole buttonhole The keyhole but...

Page 32: ...on is extremely thick make a test buttonhole on an extra piece of the fabric If it is difficult to fit the button through the test buttonhole you can lengthen the buttonhole by pulling the button hold...

Page 33: ...onhole will be out of position or there will be a sewing gap u No gap i Starting point o Reference lines 0 Slider 1 Stopper 2 Sewing gap u b Start sewing while pulling the needle thread lightly to the...

Page 34: ...le is finished do not raise the foot or buttonhole lever simply start the machine again n m 3 4 m Remove the fabric and place a pin just below the bartack to prevent accidentally cutting the stitches...

Page 35: ...older to the back and place the button in it Push it tightly together on the button Attach the buttonhole foot with the stabilizer plate to the machine Pass the needle thread through the hole of the f...

Page 36: ...e stitch density can be varied from 0 2 to 0 8 Keyhole Buttonholes q Stitch pattern 19 w Thread tension dial 1 to 4 e Presser foot Automatic buttonhole foot R Sewing procedure is the same as square bu...

Page 37: ...wer the foot q Spur w Forks x Start the machine and sew the buttonhole Each side of the buttonhole and the bartacks will be sewn over the cord Remove the fabric from the machine and cut the sewing thr...

Page 38: ...darning as follows d5 is the default setting value When the right side of the darn is lower than the left side press the sign on the stitch length adjusting key q to set the value to d6 to d9 and mak...

Page 39: ...q 1 5 cm 5 8 Sewing a shorter tack To sew a tack shorter than 1 5 cm 5 8 first stop the machine after sewing the required length then press the reverse button The tack length has been determined Star...

Page 40: ...h length adjusting key NOTE The shape can be adjusted within L1 to L5 Eyelet q Stitch pattern 22 w Thread tension dial 1 to 4 e Presser foot Satin stitch foot F The eyelet is used for belt holes etc S...

Page 41: ...n Add 1 cm 3 8 to the zipper length This is the overall opening size q Right side of the fabric w 1 cm 3 8 e Opening size r Zipper length t End of the zipper opening Zipper Sewing q Stitch pattern 00...

Page 42: ...with the pin on the right hand side Lower the foot onto the topside at the end of the zipper opening so that the needle pierces the fabric next to the fold and the zipper tape c Sew through all layers...

Page 43: ...e opening 0 7 to 1 cm 3 8 and turn the fabric 90 degrees 0 0 7 to 1 cm 3 8 CAUTION Be sure that the needle does not strike the presser foot or zipper teeth when the zipper foot is attached n Stitch th...

Page 44: ...eight fabrics x Place the fabric so that the fold is next to the guide on the foot Lower the presser foot Adjust the needle drop position if necessary c Sew while guiding the folded edge e Folded edge...

Page 45: ...ust the stitch width if necessary w Stitch width adjust to span of holes Stitch several times After you finish sewing cut the thread but leave 10 cm 4 of threads at the end Pull the bobbin thread to d...

Page 46: ...n Sew the stitch pattern on the right side of the garment centering over the seam line 4 Shelltuck q Stitch pattern 14 w Thread tension dial 6 to 8 e Presser foot Satin stitch foot F Use a lightweight...

Page 47: ...e to decrease the stitch width t Press the sign on the stitch width adjusting key e to increase the stitch width y e Stitch width adjusting key The stitch width will be varied based on the centered n...

Page 48: ...ut the fabric on the grain Determine the width of the drawn work and remove one strand of yarn or fabric thread at each end z x c x Sew down the left side guiding the fabric so the right hand stitches...

Page 49: ...stitch patterns 13 and 30 can also be used Use these stitches to join two pieces of fabric to create an open work appearance and add design interest Fold under each fabric edge 1 5 cm 5 8 and press P...

Page 50: ...ws of straight stitches 1 cm 3 8 apart across the area to be smocked Knot the threads along one edge From the other edge pull the bobbin threads to distribute the gathers evenly q 1 cm 3 8 w Knotted t...

Page 51: ...n 39 w Thread tension dial 3 to 6 e Presser foot Satin stitch foot F 4 q w e Satin Stitches q Stitch pattern 41 w Thread tension dial 1 to 4 e Presser foot Satin stitch foot F The stitch patterns 40 a...

Page 52: ...to 49 can also be used q w e 4 Correcting Deformed Stitch Patterns The sewing results of stretch stitch patterns may vary depending on sewing conditions such as sewing speed fabric type number of laye...

Page 53: ...hook cover plate by sliding the hook cover plate release button to the right Take out the bobbin Brush out dust and lint You may also use a vacuum cleaner z Remove the setscrews on the needle plate wi...

Page 54: ...lever and start the machine again The machine is started after halting due to overload Wait for at least 15 seconds to restart Turn the power switch OFF Remove tangled threads around take up lever hoo...

Page 55: ...ynthetics 4 The needle thread is not threaded properly 5 A poor quality needle is used Page 14 Page 14 Use the stretch stitch needle Page 18 Change the needle Seam puckering 1 The needle thread tensio...

Page 56: ...54 Stitch Chart...

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Page 60: ...812 800 054 EN...

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