Sears 385. 17928 owner manual Problem Probable Cause, Upper

PROBLEM

PROBABLE

CAUSE

CORRECTION

Incorrect

size

needle.

Choose

correct

size

needle

for

thread

and

fabric.

Improper

threading.

Rethread

machine.

Loose

upper

thread

tension.

!

Tighten

upper

thread

tension.

Irregular

Stitches

Pulling

fabric.

1 Do not

pull

fabric;

guide

it gently.

Loose

presser

foot.

Reset

presser

foot.

Unevenly

wound

bobbin.

Rewind

bobbin.

Nicks

or burrs

at

hole

of

needle plate.

Replace

needle

plate,

or polish

off

burrs

completely,

Pulling

fabric.

Do not

pull

fabric;

guide

it gently.

Breaking

Needle

Incorrect

size needle.

Choose

correct

size

needle

for

thread

and

fabric.

Incorrect

setting

of

needle.

Reset

needle.

Loose

presser

foot.

Reset

presser

foot.

Upper

and lower

threads

not

drawn

back

When

starting

a seam

be sure

to

draw

both

threads

under

and

Bunching

of Thread

under

presser

foot

before

starting

seam.

back

of

presser

foot

about

4"

and

hold

until

a few

stitches

are

formed.

Incorrect

thread

tension.

Reset

thread

tension.

Using

two

different

sizes

or

kinds

of

thread.

Upper

thread

and bobbin

thread

should

be

same size and

kind,

Puckering

Bent

or biunt

needle.

Insert

new

needle.

Loose

presser

foot.

Reset

presser

foot.

Fabric

too

sheer or

too

soft.

Use

underlay

of

tissue

paper.

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