Operation Manual

16.
Causes
of
poor
sewing
and
their
so’utions
Th
s
macrune
has
oeen
des
gued
fo
ce
as
asv
to
use
as
possiole
There
s
no
need
for
difficult
ad,jstments
RreaKdow”s
smilar
to
me
ones
oeiow
occur
because
of
simole
ad 1 ustment
errors
Tney
can
be
cured
simpiy
by mak
ng
tne
correct
ad(ustments
as
descr
bed
oelow
PROBLEM
CAUSE
ADJUSTMENT
Cloth
does
Presser
foot
pressure
s
100
°-ess
n
the
control
Outton
n
he
center
of
not
feed
a1<
the
presser
foot
regulating
button
to
increase
1he
presser
1 oot
pressure(see
p.8)
Needle
breaks
The
needle
IS
Dent
or
1he
Reølace
neecle
for
a
new
one (see
0
11)
needle
point
is
damaged
Needle
is
fitted
incorrectly
Fit
needles
correctly
(see
p
11)
Cloth
has
been
pulled
Avoid
pushing
or
pulling
the
fabr
c
excessively
excessively
during
sewing.
Thread
breaks
The
machine
has
been
thread-
Re-thread
correctly
(see
p.4)
ed
ncorrectly
Thread
has
become
tangled
Check
that
the
thread
has
not
become
tangled
or
caught.
on
the
thread
stand
Tension
is
too
tight.
See
p
6
Needles
fitted
incorrectly
See
p
‘1
Wrong
needle
has
been
used
Always
use
DC
I
needles
Skip
stitching
i
The
needle
is
bent
or
the
Replace
needles
(see
p.111
occurs
needle
point
damaged
Needles
are
not
fitted
perfectly.
Re-fit
needles
correctly
(see
p.11)
The
wrong
needle
is
being
used
Always
use
DC
1
needles.
Tnreading
is
incorrect.
Re-thread
correctly.
Presser
foot
pressure
s too
weaK.
0 usn
me center
ot
‘he
presser
toot
regulating
button
and
increase
the
presser
toot
pressure
(see
o
81
Incorrect
threads
are
being
used.
Use
correct
threads
and
needle
size.
Poor
seam
Thread
tension
incorrect.
See
p
6
formation
Fabric
puckering
Thread
tension
is
too
strong.
Reduce
the
thread
tension
as
much
as
occurs
possible
when
sewing
lightweight
fabrics
Threading
is incorrect
Re-thread
correctly
tsee
p.4)
Thread
has
become
tangled.
13