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PERFORMANCE
CHECKLIST
When
sewing
difficulties
occur,
look
back
through
this
manual
to make
sure
you
are correctly
following
the instructions.
If you still have a problem,
the reminders
below
may
help you to correct
it.
Needle
Does
Not Move
Is machine
connected
to electrical
supply?
Is the power
and light switch
on?
Is controller
connected?
Needle
Moves
But Stitch
Is Not Formed
Is needle
defective?
Is needlefully
inserted
into needle
clamp?
Are bobbin
and needle correctly threaded?
Is bobbin
correctly
inserted
into bobbin
case?
Needle Breaks
Is needle
straight
and sharp?
Is needle
correct
size?
Is needle
fully inserted
into needle
clamp?
Are controls
properly
set?
Are
accessories
correct
for
application?
Bobbin
Winding
Difficulties
Is thread
unwinding
freely
from spool?
Is bobbin
winder
engaged?
Is thread
end securely
held at start of wind?
Upper
Thread
Breaks
Is machine
properly
threaded?
Is thread
freely
unwinding
from spool?
Is proper
spool
cap
being
used?
Is needle
correct
size for thread?
Is upper
thread
tension
too tight?
Is bobbin
case
properly
inserted?
Is bobbin
rim free of nicks?
Lower
Thread Breaks
Is bobbin
correctly
wound?
Is bobbin
correctly
inserted
in to
bobbin
case?
Is bobbin
case correctly
threaded?
Skipped
Stitches
Is machine
properly
threaded?
Is fabric
firmly
held down?
Is needle
correct
style and size?
Is needle
straight
and sharp?
Fabric Does Not Move Properly
Under Presser Foot
Is presser
foot correctly
attached
to
machine?
Is presser
foot lowered?
Is stitch
length
correctly
set?
43
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