Husqvarna Zig Zag - Sewing faults and troubleshooting; Common sewing faults overview

Faults
in
sewing"
If
the
upper
rhread
breaks,
it
the
following
faulrs:
is
usuailv
caused
bv
any
oi
Upper
chread
wrongly
rrhreaded.
Upper
rhread
tension
roo
tigh
r.
Bent
or
blunt
needle,
or
faurty
in
some
other
wa),.
Damaged
point
on
the
shuttle.
Needle
hole
in
rhe
rhroar
prare
damaged
bv
rhe
needle.
Thread
roo
coarse
in
reration
[o
rhe
needle.
If
the
under
nhread
breaks,
ir
nrav
be
due
ro
rhe
facr
char
the
rension
spring
on
rhe
bobbin
case
is
roo
tighr
or
rhar
the
needle
hole
in
the
throat
plare
is
damaged.
Poor
qr"rality
thread
may
also
be
rhe
.urrr.
of
thread
breaki'g-
Good
thread
shourd
be
f
ree
from
knors
and
should
resist
normal
rhread
tension.
Skipped
stitches
are
mosr
often
caused
by
a
benr
or
blu*t
needle,
or
orle
thar
has
been
wronglv
inserred
in
the
[:ar.
If
the
needle
breaks,
it
rnay
be
due
rci
ir
having
bee,
bent.
If
it
is
necessary
to
pull
the
material
in
certain
kinds
oi
sewing,
this
musr
be
done
cautioustry
so
as
nor
to
bend
rhe
needle
so
that
its
point
strikes
againsr
the
hole
in
the
throar
plate.
This
wilt
often
make
it
break
a'ci
may
also
damage
the
needle
hole
oi
the
rhroat
place.
If
the
material
puckers,
it
is
tisually
due
to
the
rhread
being
too
tightly
tensioned
in
relarion
ro
rhe
rhickness
ot
the
material
and
rhe
cension
should
rherefore
be
loosened.
If
the
marerial
is
drawn
cogerher
by
the
zig-zag
seam,
the
troubie
is
usually
the
same.
If
so,
reduce
the
rhread
tension.
If
the
machine
does
not
feed
the
marerial
sarisfactorily.,
it
may
be
due
tro
rhe
feed
motion
being
filled
wirh
fluit
from
rhe
materiatr
and
the
feed
motion
shouuld
in
rhar
case
be
cleaned.
"t