Operation Manual

ManualsBrandsPfaff ManualsMiscellaneousHobbylock 604

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9.

Thread

tension

and

adjustment

The

correct

thread

tension

varies

depending

on

the

type

of

cloth

and

the

type

and

thickness

of

thread.

The

correct

setting

should

always

be

obtained

by

watching

the

seam

and

making

the

appropriate

adjustments.

•

Correct

thread

tension

Refer

to

Figs.

I,

2

and

obtain

the

correct

tenson

setting.

Ii

Correct

thread

balance

for

the

double

chainstitch.

stitch.

2.

Incorrect

thread

tension

and

how

to

adjust

Thread

tension

is

adjusted

by

means

of

the

4

thread

tension

regulators.

Turning

the

thread

tension

regulator

dials

clock

wise

increases

thread

tension

while

turning

them

counterclockwise

reduces

the

tension.

The

greater

the

figure

shown

on

the

front

cf

the

dia

the

greater

the

thread

tension.

If

the

double

chainstitch

needle

thread

is

too

loose

then

the

seam

will

look

like

this.

If

this

has

happened

then

tighten

the

double

chainstitch

needle

regulator.

too

bose

or

the

needle

thread

tension

is

too

tight

then

the

seam

will

appear

as

shown

above.

To

adjust

it,

either

loosen

the

overlock

stitch

needle

thread

tension

regulator,

or

tighten

the

looper

thread

tension

regulator.

If

the

overlock

stitch

needle

thread

tension

is

too

loose

or

the

looper

thread

tension

is

too

tight

then

the

seam

will

appear

as

shown

above.

To

adlust

it,

either

tighten

the

overlook

stitch

needle

thread

tension

regulator

or

loosen

the

looper

thread

tension

regulator.

=

c=

2

Correct

thread

balance

for

the

overlook

If

the

overlock

stitch

looper

thread

tension

is

6