Adjusting top thread tensions, Adjusting bobbin tensions – SINGER W1550 User Manual

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ADJUSTING TOP THREAD
TENSIONS

Probably the most important control on

your machine is this one that regulates
your top thread tension.

There are many reasons for having to

reset your tension. The best tension for

An ideal straight stitch will have
threads locked between the two
layers of fabric.

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one fabric may not be correct for

another. The recjulred tension depènds
upon the stiffness of the fabric, thickness

of the fabric, numbers of layers of fabric
being sewn, as well as the type of stitch

you are making.

It is best to test the stitching on a scrap

of the fabric you are using before starting

to make a garment. Use the straight
stitch function as shown at the right.

ADJUSTING BOBBIN TENSIONS

Bobbin tension requires adjusting less

frequently than the upper thread ten^
sion.

If the stitch is satisfactory but the seam

is puckered, it may be necessary to
loosen the tension on both the top and

bottom threads. Be sure to balance
them.

When adjusting the tension on the bobbin

case, make slight adjustments with a
screw driver.

Decrease Tension ( o

Upper thread too loose

Increase Tension

DECREASE TENSION