Janome 4900 QC manual Balancing thread tension, Auto-thread tension, Balanced thread tension

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			Balancing thread tension
z			• Auto-thread tension
z			When the thread tension dial is set at AUTO for
			When the thread tension dial is set at AUTO for
			automatic thread tension, the green light will be on.
			automatic thread tension, the green light will be on.
			For general sewing, set the tension dial at AUTO,
			which covers a wide range of sewing conditions.
	x		z Align the AUTO mark of the thread tension dial with the
		c	indication line.
		c	x The green light is on.
			x The green light is on.

cDispaly screen shows “AUTO”.

•Balanced thread tension

r		q	For straight stitch sewing, both needle and bobbin
r		q	threads will join at the middle of the fabric.
	w		threads will join at the middle of the fabric.
	w		For zigzag stitch sewing, the needle thread will
			For zigzag stitch sewing, the needle thread will
			appear slightly on the wrong side of the fabric.

q Wrong side of fabric w Right side of fabric e Bobbin thread

r Needle thread (Top thread)

e

q

•Manual thread tension adjustment

You should adjust the tension manually if the green light q

blinks when a specific stitch is selected. The screen

shows the recommended tension setting w for the selected stitch.

q Green light

w Recommended tension setting

w

w	q		If the needle thread is too tight, the bobbin thread
	q		If the needle thread is too tight, the bobbin thread
r		t	appears on the right of the fabric.
r			q Wrong side of fabric


			w Right side of fabric
			e Bobbin thread
			r Needle thread (Top thread)
			t Tension dial
			Turn the thread tension dial in the direction of the arrow
e			to decrease the thread tension.
w	q		If the needle thread is too loose, the needle thread loops
	q		on the underside of the fabric.
r	t		on the underside of the fabric.
r			q Wrong side of fabric
			q Wrong side of fabric
			w Right side of fabric
			e Bobbin thread
			r Needle thread (Top thread)
			t Tension dial
			Turn the thread tension dial in the direction of the arrow
e			to increase the thread tension.

2 4

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Contents Page Important Safety Instructions Table of Contents Table of Contents Name of Parts Name of partsStandard Accessories Free-arm sewing can be used for Detaching the tableAttaching the table To use foot control Connecting the Power SupplyTo use start/stop button Operating Instructions Speed control sliderFoot control Auto-lock button Start/stop buttonReverse stitch button Up/down needle position buttonMonogramming key see Screen brightness adjustment dialMode key see Stock/Call key see page 296Function touchpad see 4Stitch width adjustment key see page 28, 295Stitch length adjustment key see page 28, 29 7Clear key seeMode 2 Mode selectionMode 1 Screen indication Monogramming modePattern Selection Mode Pattern selection and screen indicationMode 2, 3 and Monogramming Example stitch patternLanguage setting Resumption settingSound setting Window duration time settingPresser foot lifter To drop or raise the feed dogPressure dial Knee Lifter Changing the presser footTo remove and attach the foot holder To removeChanging the needle Thread and Needle Chart Needle SizeRemoving the bobbin Setting the spool of threadBobbin Winding Additional spool pin y Spool Inserting the bobbin Threading the machine Built-in needle threader Drawing up bobbin thread Auto-thread tension Manual thread tension adjustmentBalancing thread tension Balanced thread tensionChanging sewing direction Machine settingsStraight stitch Securing a seamTurning a square corner Using the quilting guideUsing the seam guides on the needle plate Sewing on heavy fabricHelp button Adjusting the needle drop position Adjusting the stitch lengthRestoring the original settings Example To change the preset value for the stitch lengthBasting Attaching the darning foot PStretch stitch Lock-a-Matic stitchTriple stretch stitch New sculpture stitch Locking stitchSaddle stitch Programming French knots Example Combination of patterns 54 Decorative stitchFrench knot Zigzag stitch Adjusting the stitch widthAdjusting the stitch length Multiple zigzag stitch Tricot stitch Types of Overcasting StitchesOvercasting with zigzag stitch Overcasting stitchOverlock stitch Knit stitchDouble overedge stitch To sew Button sewingAttaching the button sewing foot T Fine Fabric Buttonhole Variations of Buttonholes Square ButtonholeRound-end Buttonhole Keyhole ButtonholeSquare buttonhole Pull the buttonhole lever down as far as it will go Start the machine to sew the buttonhole Double layer buttonhole Corded buttonholeAdjusting buttonhole width Adjusting stitch densityRound-end buttonholes #18 Adjusting buttonhole width on stitch pattern #18Adjusting buttonhole width on stitch pattern #20 Keyhole buttonholes #20Knit buttonhole #24 Faux chain buttonhole #25Welted buttonhole Page ⁄2t Eyelet Zipper sewing Fabric preparationFold back the left seam allowance. Turn the right Page Darning To sew the same size darning To adjust the evenness of darningTo sew a shorter darning To sew the darning at a different sizeTo sew the same size tack TackingTo sew a shorter tack To sew a tack at a different sizeChanging needle drop position How to fold the fabricBlind hem EPintucking QuiltingShell tuck AppliqueSmocking FagotingScallop a Scallop BPatchwork Satin stitchStrand cording Rolled hemCording Cross stitch Twin needle sewing Pattern combination Example Programming patterns 33, 35 Combinations for a mirror image Pattern Elongation Extender stitches Free-motion quilting Editing program Combining satin and decorative stitches Custom stitch adjustment Mode 2 and 3 only Programming a monogram Programming a monogram Reducing the size of a monogram Example To delete C from Abcd Viewing a long textEditing the programmed patterns Deleting a letter character Example To insert a space between B and C in Abcd Inserting a letter characterDuplicating a pattern To duplicate the stitch patternTo stock memory To store and call stitch pattern combinationsOverwriting a stored combination Recalling a stored combination Deleting a stored combinationLetters and numbers Correcting distorted stitch patternsStretch stitch pattern ExampleCleaning the hook race and feed dog Inserting the bobbin holderTo replace Replacing the light bulbReplacing the light bulb on the underside of the sewing arm Message Problem/Cause Try this Pip Normal operation Audible SignalsBeep sounds during Troubleshooting Condition Cause Reference