Instruction Manual Manual

10. Performance Checklist
Whenever sewing difficulty is encountered, review the sections of the instruction book that explain the operation you are performing to make
sure you are using the machine correctly. If the problem still exists, the following checklist may help you to correct it.
Machine Does Not Sew
Needle does not move
Make sure . . .
® power and light switch is on.
® machine is connected to electrical supply.
(Turn to page 27 for additional Information.)
Needle moves but stitch is not formed
Make sure . . .
® needle is straight and sharp.
® needle style is correct for machine.
® needle size is correct for thread being
used.
® needle is fully inserted into needle-clamp.
® machine is correctly threaded.
(Turn to page 13 for additional information.)
® bobbin contains thread.
® bobbin latch is in SEW position.
® bobbin case area is free of lint and loose
threads (see page 103).
(Turn to page 32 for additional information.)
Needle and/or thread breaks
Make sure . . .
0 machine is correctly threaded (see
page 28).
® needle is straight and sharp, correct style
for machine, and correct size for thread
being used.
® needle is fully inserted into needle-clamp.
(Turn to page 13 for additional information.)
0 fabric is not being pulled to one side as
work is removed from machine.
® fabric being guided or supported behind
the needle is not being pulled too hard or
too fast.
(Turn to page 67 for additional information.)
Bobbin Winding Difficulties
Upper thread breaks while
winding bobbin
Make sure . . .
® presser bar is raised.
® thread is unwinding freely from spool.
® thread spool is inserted correctly on
spool holder.
® machine is correctly threaded.
(Turn to page 32 for additional information.)
Thread does not wind onto bobbin
Make sure . . .
® bobbin latch is in winding position.
® thread passes under toe of presser foot
before being secured to thumb screw
spring.
® thread end is held securely by thumb
screw spring at start of wind.
(Turn to page 32 for additional information.)
Thread breaks when sewing starts
after winding bobbin
Make sure . . .
® bobbin has not been wound beyond the
FULL ring. Turn hand wheel away from
operator to free over wound bobbin.
® bobbin case area is free of lint and loose
threads (see page 103).
(Turn to page 32 for bobbin information.)
Low Bobbin Indicator
Does not light up when there is little
or no thread in bobbin
Make sure . . .
® bobbin case area is free of lint and loose
threads (see page 103).
Thread Breaks While Sewing
Upper thread breaks
Make sure . . .
® machine is properly threaded.
® thread spool is inserted correctly on spool
holder.
® thread is unwinding freely from spool.
® thread is even and free from knots.
(Turn to page 28 for additional information.)
® needle is correct size for thread.
® needle is straight and sharp.
(Turn to page 13 for additional information.)
® upper thread tension is not too tight (see
page 46).
® bobbin rim is free of nicks.
® needle plate hole and presser foot are
undamaged.
® threads are correctly placed under pres
ser foot when starting to sew (see
page 33).
® presser foot is securely fastened to pres
ser bar (see page 9).
(Turn to page 28 for additional information.)
Lower thread breaks
Make sure . . .
® bobbin has been correctly wound.
® bobbin case area is free of lint and loose
threads (see page 103).
® bobbin has been correctly inserted into
bobbin case.
® bobbin has not been wound too full.
(Turn to page 33 for additional information.)
Stitching Difficulties
Skipped stitches
Make sure . . .
® needle is straight and sharp.
® needle is correct style for machine and
size of thread (see page 20).
® machine is properly threaded (see
page 28).
® correct presser foot and needle plate are
being used.
Loose stitches on underside of fabric
Make sure . . .
0 sufficient tension is being exerted on
upper thread (see page 46).
® bobbin case area is free of lint and loose
threads (see page 103).
® bobbin has not been wound beyond the
FULL ring.
Feeding Difficulties
Fabric does not move properly
under presserfoot
Make sure . . .
o machine is threaded correctly.
® line of stitching is started in from fabric
edge.
0 bobbin case area is free from lint and
loose thread ends (see page 103).
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