White 671 - Regulating Feed and Stitch Direction

B) Contrariwise,
the
upper
thread
tension
becomes
weaker
when
the
dial
is
turned
in
the direction marked
(—).
C)
Once
the
tension
has
baen
adjusted
satisfactorily,
the
dial
the
same
dial-number
to
ootan
the
same
results.
Tension
on
the
lower
thread
can
be
returned to
The
tension
on
the
lower
thread
is
regulated
by
the
screw
on
the
bobbin
case
tension
spring.
(Fig.
18)
Use
the small
driver
and
tighten
the
screw
sbghtlv
to increase
the
tension,
or
loosen
it
to
slacken
the
tension.
I’
—
Fg.
18)
_______
To
regulate
the
direction
of
feed
and
stitches
REVERSE
BUTTON
For
reverse
stitching,
keep
pressing
reverse
button
R
until
the
desired
length
of
stitches
are
sewn.
To
regulate
the
length
of stitch,
turn
the
stitch
length
regulating
dial
to
the
required
length.
as shown
in the
stitch
length
indicator
window.
(Fig.
19
(Fg.
19)
SPRING
-- - -
SCREW
1
1
I
12