Baby Lock Jewel BL J18 Manuale delle Istruzioni Scaricare il pdf (Pagina 38)

MOTOR STALL

NEEDLE

THREAD

BREAKS

•ealarmindicatesthatthemotorisnotrespondingproperlyto

the speed controls. is may be caused by a thread lock, mechanical

obstruction or an electrical problem.

•Clearanythreadfromthebobbinareaonly aer turning o the

power to the machine.

•Turnthehandwheelandcheckfortightness.

•emotorstallmayre-occurifitiscausedbyanelectricalproblem.

Turn the machine o and then back on again to reset the computer.

•Lookforseveretwistingofthreadswhenapproximately12to15

inches has been pulled o, with the ends pinched together. Cotton

threads are particularly susceptible to dry rot or wet rot which makes

thread brittle.

•Testandsetbobbintensionfollowinginstructionson(page18).

Next, set top tension following instructions on (page 20).

•Checkthatthemachineisthreadedcorrectly.

•Inspectforaccidentaldoublewrappingofthreadonthreadguides.

•Inspectthethreadmast,makingsurethattheeyeletsofthemastare

directly over the spools.

•Inspecttheverticalpositioningofthethreadcones.Tippedcones

can dramatically aect thread tension and can cause breakage.

•Inspectforparticlesandremoveanyfuzzordebris.

•Makesurethebobbiniswoundsmoothly.Ifitappearstobeokay,

then change the bobbin. e slightest hesitation of the bobbin rotation

can be the cause of dramatic tension change and thread breakage.

•Ifneedleshowsdamage,replaceneedleimmediately.Makesurethe

needle is installed to the top of the stop/sight opening in the needle

bar. Change the needle at least once per quilt.

•Replacetheneedletoonebettersuitedforthethread.Usethe

proper size needle.

Problem Cause Correction

Motor Stall

Thread cones/spools

may have abraded

thread casing, severe

twisting or thread rot

Top and bobbin

tensions not balanced

The machine head

has been threaded

incorrectly or thread

spools are not

positioned correctly

Particles in tension discs

Bobbin rotation is

not smooth

Needle is burred, bent

or dull, or installed

incorrectly

Needle not suited for

thread

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Baby Lock Jewel BL J18 Manuale delle Istruzioni Pagina 38

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