Husqvarna Viking 990 User Manual

tau1t-tinding
Why
haven’t
I got
the
results
I
expected?
(cont.)
Uneven
thread
tension
This may
be
due
to
poor
quality thread.
Irregular
bobbin
winding
The
bobbin
is
not
placed
correctly.
See
page
10.
The
machine
is
not
correctly
threaded
for
bobbin
winding.
See
page
10.
The
fabric
puckers
The
upper
thread
tensionis
too
tight.
See
page
13
for
correct thread
tension.
The
machine
does
not
feed
the
fabric
The
stitch length
is
too
short. Press
the
+
button.
The
feed teeth
may
be
lowered.
Raise
them
by
pressing
the
feed
teeth
button.
See
page
9.
The
presser
foot
pressure
is
disengaged.
See
page
9.
The
feed
teeth
are
full
of
dust
and
dirt.
Clean with
the
brush.
See
page
52.
The
seam
is
too
loose—fabric
layers
not
held
together
The
thread tension
is
far
too
loose.
Pages 12—13
show
how
to
adjust
the
thread
tension.
Incorrect
pattern
If the
machine
does
not
sew
the
pattern
indicated
by
the
symbol, shut
off
the
main
switch,
wait a few
seconds.
Press
the
main
switch
and
reset
the
machine.
If the
machine
still
does
not
sew
the
correct
pattern,
contact
your
dealer.
54
Machine
runs
sluggishly
Dirt
or
lint
has
fastened
under the
needle plate.
Loosen
the
needle plate and
brush clean
between
the
feed
teeth. See page
52.
Dirt
or
lint
has
fastened
in
the
hook.
Remove
the
bobbin and
bobbin
case
and
clean
with the
brush. See
page 52.
Expert
assistance
If
you
have followed
the
preceding
points
and
still
do
not
get
satisfactory
results,
you
should
contact
the
dealer
where you
bought the
machine.
The
dealer
will
always
be
more than
willing
to
give
you
advice
and
help
as
to
what
measures
should
be
taken.
When
the
machine
is
being
checked,
it is
a
great
help
if
it
can
be
test
sewn
under as
similar
conditions
as possible
as
when you
used
it.
Remember
to
take
a
sewing sample
along
with
you,
preferably
on
the
fabric
and
with
the
thread you
intend
to
use.
A
sewing sample
will often
give
much
better
informa
tion
than words.

Husqvarna Viking 990 Specifications

General

Brand	Husqvarna
Model	Viking 990
Category	Sewing Machine
Language	English