Kenmore 1250 Checking, Performance Problems WHATTODO, lnco, ectthreadltensiOns, Probable Cause

Checking

Performance Problems WHATTODO

i

PROBLEM

rregular

Stitches

Breaking

Needle

Bunching of

Thread

PROBABLE CAUSE

Incorrect size needle.

improper threading;

Light pressure on presser foot. Loose presser foot,

Unevenly wound bobbin, Nicks or burrs on shuttle, Nicks or burrs at hole of needle

plate, i!; _

Pulling fabric.

Incorrect size needle.

Incorrect setting of needle.

Loose presser foot;

backunder presser foot before starting; seam.

lnco, ectthreadltensiOn(s).....

Light pressure on presser foot:

Using: twodifferent sizes or kinds of thread.;

Bent: or blunt needle.

Loose presser: foot_:

Fabri¢! too::sheer!or tOO..soft; _

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CORRECTION

Choose correct size needle for thread and fabric.

Rethread machine.

Tighten upper thread tension.

Do not pull fabric; guide it gently.

Increase pressure on presser foot.

Reset presser foot.

Rewind bobbin.

Replace shuttle, or polish off burrs completely,

Replace needle plate; or polish off burrs completely.

Do not pull fabric; guide it gently.

Choose correct size needle for thread and fabric.

Reset needle.

Reset presserfoot,

When starting a seam be sure to draw both threads under and back of presser foot about 4" and hold until a few stitches are formed.

Reset thread tension(s).

Increase pressure on presser foot.

Upper thread and bobbin thread should be same size ancj kind.

insert new needle; Reset presser foot.

Use underlay of tissue paper.

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