White 7234 - Thread Tension Adjustment Guide; Balancing Stitch Tensions

35.
Thread
Tension
Adjustment
f
Set
the
balance
of the
tension
as
weak
as
possible.
Balance
of the
Loopwer
thread:
When
the
lower
looper
thread
is pulled to
the
top
of
material,
loosen
tension
dial
, counter-
clockwise.
(or
tighten
tension
dial
®
clockwise.)
When
the
upper
looper
thread
is
pulled
to
the
underside,
tighten
tension
dial
‘
clockwise.
(or
loosen
tension
dial
‘4.
counter-clockwise.)
(1)
Correct
tension.
• Lower
looper
thread and
upper
thread
should
be
well
balanced
with
same
tension.
(Both
loop
er
threads
should
make
crosses
at
the
edge
of
the
fabric.)
• Needle thread
should
not
be
slacken,
or
pulled.
(2)
Unbalanced
upper looper
thread wraps
round
and
over
the
back:
Tighten
the
thread
tension
of
the
upper
looper
(Dial
3)
or
loosen
the
thread
tension
of
the
lower
looper
(Dial.
‘l
Right
side
Uppcr
looper
thread
Left-nand
needle
thread
Rigrt-nand
needle
thread
‘
Lower
Tighten
Loosen
I