Minor problems and solutions, Skipped stitches, Thread breaking – SINGER W811 User Manual
Page 56
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MINOR PROBLEMS AND SOLUTIONS
1. SKIPPED STITCHES
Skipped
stitches
have
become
a
problem
in
recent
years,
especially
with
the
appearance
of
knit
fabrics
and
polyester
threads
on
the
market.
Skipped
stitches
normally
can
be
traced
to
four basic causes:
A.
The Needle
D.
(
1
)
!
2
)
!3)
(4)
!
1
)
!
2
)
C.
The needle is dull or bent. Change it.
The
needle
is
placed
incorrectly
in
the
needle
clamp.
It
is
either
backwards
or
is
not
up
in
the
needle
clamp
all
the
way.
The
wrong
type
of
needle
is
being
used
for
the
fabric.
Use
ball
point
needle
on
knits
and
wedge
point
needles
for leathers and vinyls.
the
thread
is
too
thick
for
the
size
of
needle
being
used.
Use a large needle.
The Thread
The machine is threaded incorrectly.
Many
brands
of
polyester
thread
are
too
stiff
and
coarse
thus
making
loop
formation
difficult
or
impossible.
Change brands or use a cotton thread.
The Presser Foot
¡1)
The
foot
being
used
is
not
holding
the
fabric
taut
enough
over
the
needle
plate
hole,
thus
the
fabric
is
being
pulled
up
and
down
while
stitching.
Use
the
foot
which
gives
the
most
control
possible
for
the
particular
job
being
done.
12)
There
is
not
enough
pressure
on
the
presser
bar
to
hold
the
fabric
firmly.
Increase
pressure
on
the
pressure
con
trol
The Fabric
The fabric has a heavy finish on it which deters stitch for
mation. Wash the fabric thoroughly before sewing.
2
.
A.
B.
C.
D.
E.
F.
G.
H.
THREAD BREAKING
Machine improperly threaded.
Thread
is
caught
in
a
slit
of
the
spool
or
under
the spool
Thread is dry or of poor quality.
Tension is too tight.
Starting
the
machine
with
take-up
lever
in
the
wrong
position.
Always
start
and
end
sewing
with take-up lever in highest position.
Needle is bent, blunt, or has a burr on it.
Needle is not inserted correctly.
Thread is too coarse for needle being used.
Needle plate has been nicked by the needle, thus
is sharp and cuts the threads.
50