THREAD

TENSION: STRAIGHT STITCHING

"Balance" is the key to handsome, durable straight stitching

o

Decrease tension Increase tension

CHECKING FOR CORRECT TENSION OF THREAD

The good looking appearance of your straight stitching is mainly determined by the balanced tension of the top thread and bobbin thread. The tension is well balanced when the two threads lock m the middfe of the layers of fabric when straight stitching.

You can achieve balanced tension by regulating the Top Thread Tension Control (17). if the upper thread appears to be too tight, dial left (lower numbers) to decrease tension. If the upper thread is too loose, dial right (higher numbers} to increase tension.

STRAIGHT STITCHING

TOP STITCH

TOO TIGHT

TOP STITCH

TOO LOOSE

STRAIGHT STITCH

JUST RIGHT

THREAD

TENSION:

ZIGZAG STITCHING

CHECKING

FOR

GOOD LOOKING

ZIGZAG STITCHES

 

 

 

 

 

Always

practice

stitching

on two layers of the fabr=c

chance

for

puckering.

Reduce

the

top

tension,

if

you will

be using.

 

 

puckering

occurs,

 

 

 

 

 

 

Make sure that you are using the right size and type

The top

thread

will

be visible

on

the

bottom

to

of needle

for the

fabric.

See chart page 11,

 

varying

degrees

depending on

the

thread, fabric,

Choose a thread of good quality and type for your

type of stitch being used and speed of sewing.

 

The bobbin thread should never be visible on the

fabric. See chart page 11.

 

 

 

 

 

 

 

 

 

 

 

Remember -- the wider the zigzag setting, the more

top of the

fabric,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BOBBIN

TENSION

 

 

 

 

 

 

 

 

 

 

 

The bobbin tension has been correctly set at the factory, so you do not need to

 

 

 

 

adjust

it.

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 9
Image 9
Kenmore 1791 manual Thread Tension Straight Stitching, Zigzag Stitching, Checking for Correct Tension of Thread