SINGER W ET 10 - Manual (Page 38)

4. CHECK CHART
FOR
PERFORMANCE PROBLEMS
Your sewing machine is a precision instrument, designed to give you many years of trouble-free
sewing with mmumum maintenance. If you have any performance problem, check the list
anc m many cases you will be able to solve the problem yourself.
GENERAL PROBLEMS
Machine does not sew.
■“Hand wheel is not returned to stitching
position. — Tighten clutch knob (see page 8).
■“Power line cord is not connected. — Check
plug. ■
“Power/light switch turned off. - Turn on the
switch.
Machine jams/knocks.
“Thread is caught in shuttle. - Clean shuttle
(see page 35).
“Needle is damaged. — Replace needle (see
page 11).
Fabric does not move.
Presser foot not lowered. — Lower presser
foot.
“Stitch length control is set at 0. — Set it at 1
to 4.
Darning plate is attached. — Remove darning
plate.
“Thread is knotted under fabric.
STITCHING PROBLEMS
Machine skips stitches.
“Needle size is not correct for thread and fabric
— See page 11.
“Fabric is a ceaain knit or synthetic. — Use
stretch stitch needle.
.Needle is bent or blunt. — Replace needle
(see page 11).
Needle is not all the way up into needle clamp
— — See page 11. -
“Top thread tension is too tight. - Decrease
top thread tension.
“Machine is not threaded correctly. - See pages
lu and i2.
“Thread is caught in shuttle. - Clean shunie
(see page 35).
Stitches are irregular.
“Needle size is not correct for thread and fabric
— See page 11.
'l^^a^ridT^^ not threaded correctly. - See pages
Top thread tension is too loose. — Increase
top thread tension.
•Fabric is being pulled or pushed against
machine feeding action. - Guide it gently.
Bobbin has not been wound evenly.— Rewind
bobbin.
“There are nicks or burrs at needle plate opening.
— Replace needle plate or smooth out burrs.
Needle breaks.
“Fabric is being pulled or pushed against
^machine feeding action. — Guide it gently.
“Needle size is not correct for thread and fabric
— See page 11.
“Needle is not all the way up into the needle
clamp (see page 11).
“Presser foot holder is not fastened securely.
— Retighten presser foot thumb screw.
THREAD PROBLEMS
Thread bunches.
“Top and bobbin threads are not drawn back
under presser foot before starting seam.
- Draw both threads back under presser foot
. about 6" (15 cm) and hold until a few stitches
are formed.
Needle thread breaks.
“Machine is started too fast. - Start to sew at
a slower speed.
“Machine is not threaded correctly — See
page 12.
“Top thread tension is too tight. - Decrease
top thread tension.
Needle size not correct for thread and fabric
- S e e page 11. '
Eye of needle has sharp edges. - Replace
needle.
Tfiere are nicks or burrs at needle plate opening.
- Replace needle plate or smooth out burrs.
Bobbin thread breaks.
“Bobbin case is not threaded correctly. — See
page 10.
Lint acumulated in bobbin case or shuttle
- Remove lint (see page35). '
Fabric puckers.
Top and bobbin thread tensions are too tight.
^ — Adjust thread tensions (see page 14)
Two different sizes or types of thread are used
~ thread on top
and in bobbin.
•Needle is bent or blunt. - Replace needle.
Stitch length is too long for sheer or soft
tabric. - Shorten stitch length or use underlay
of tissue paper.
Presser foot holder is not fastened securely
- Retighten presser foot thumb screw.
36