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36
TROUBLE SHOOTING
GUIDE
Before
taking
your
machine
in
for
service,
check
the
following:
*Machine
fails
to
stat
.
.
'
1.
Are electrical
plugs
properly
connected?
2.
ls
the power switch turned
on?
3.
Check household
circuit
breaker
or
fuse'
*Threadbreaks..'
1. ls
machine
threaded correctly?
check
each
thread
guides,
all
tension
d
iscs.
2.
ls
the
needle inserted
correctly?
3.
ls
the
needle bent?
4.
ls
tension
adjusted
too
tightlY?
5.
ls
tension
adjusted
to
accommodate thickness
of
thread
being
used?
6.
Are
you
using
inferior quality
thread?
7.
ls
thread
feeding
off
spool/cone
freely?
8.
ls
the
needle size
correct
for
the type
fabric
being
used?
*Skipped st¡tches.
'
.
1.
ls
the
needle
bent or worn?
2.
ls
the
needle inserted
correctly?
3.
ls
the
serger
threaded
correctly?
4.
ls
the
presser
foot
properly
adjusted?
"
Fabric
will
not
feed
into
machine
.
.
.
1.
ls
the
presser
foot
down?
¡
2.
Are
the
knife
blades
clean
of
lint?
3.
Are the
knife
blades
sharP?
4.
ls
the
presser
foot
properly
adjusted?
5.
Are the
feed
dogs
and
presser
foot
free
of
lint?
6. Are the
knives
properly
set and
is
the
upper
knife
against
the
l'ower
knife?
7.
ls
stitch
length set
ProPerlY?
*Seamimbalanced...
1.
ls
the
serger
threaded
correctly?
2.
ls
the
needle
tension
too
loose
for
type
fabric
being
used?
3.
Are the looper
tensions
properly
adjusted?
4.
Have
you
changed
to
specialty
threads and
not
made
tension
adjustments
to
accommodate
thread
thickness variation?
40
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