28
TROUBLESHOOTING
Condition
Cause
Remedy
The needle thread
breaks.
1. The needle thread is not threaded properly.
2. The needle thread tension is too tight.
3. The needle is bent or blunt.
4. The needle is incorrectly inserted.
5. The needle thread and the bobbin thread are not set
properly under the presser foot at the beginning of sewing.
6. The fabric is not drawn to the rear when the sewing has
finished.
7. The thread is either too heavy or too fine for the needle.
Page 13
Page 14
Page 10
Page 10
Page 14
Page 17
Page 10
The bobbin thread
breaks.
1. The bobbin thread is not threaded properly in the bobbin
case and shuttle.
2. Lint has collected in the shuttle area.
3. The bobbin is damaged and does not turn smoothly.
Page 12
Page 26
Replace the bobbin.
The needle breaks.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The needle clamp screw is loose.
4. The needle thread tension is too tight.
5. The fabric is not drawn to the rear when the sewing has
finished.
6. The needle is too fine for the fabric being sewn.
Page 10
Page 10
Page 10
Page 14
Page 17
Page 10
Skipped stitches.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The needle and/or threads are not suitable for the work
being sewn.
4. A blue tip needle is not being used for sewing stretch, very
fine fabrics and synthetics.
5. The needle thread is not threaded properly.
6. The wrong needle is being used.
Page 10
Page 10
Page 10
Page 10
Page 13
Change the needle.
Seam puckering
1. The needle thread tension is too tight.
2. The needle thread is not threaded properly.
3. The needle is too heavy for the fabric being sewn.
4. The stitch length is too long for the fabric.
Page 14
Page 13
Page 10
Make stitch shorter.
The fabric is not
feeding smoothly.
1. Accumulation of lint on the feed dog.
2. The stitches are too fine.
Page 26
Make stitch longer.
The machine does not
work.
1. The machine is not plugged in.
2. A thread is jammed in the shuttle race.
3. The clutch is disengaged. The handwheel is pulled out.
Page 8
Page 26
Page 12
Noisy operation
1. A thread is jammed in the shuttle race.
2. Lint has built up in the shuttle or the shuttle race.
Page 26
Page 26
Stitch patter
n
Stitch
Presser f
oot
Stitch
length
Thread tension
Descr
iption
F
our-step b
utton
-
hole
Buttonhole f
oot with
slide
1-5
Standard b
utton hole
.
A
Str
aight stitch
Zigzag f
oot
1.5 - 4.0
2-6
Se
w together and top-stitch.
Can also be used as a basted seam.
A stitch length of appro
x.
1/10" (2.5 mm) is ideal f
or nor
mal seams
,
while the length should be longer f
or basted seams or on fir
mer
fabr
ics such as jeans
.
B
Str
aight stitch Left
needle position
Zigzag f
oot
1.5 - 4.0
2-6
Se
w together and top-stitch.
F
or top-stitching on edges and se
wing
in zippers
.
C
Zigzag
Zigzag f
oot
0.5 - 4.0
2-5
Ov
ercasting edges
, se
wing on bands
, appliqué
, se
wing on b
uttons
and secur
ing lace inser
ts
. Reduce the stitch length to roughly 1/50"
(0.5 mm) f
or se
wing appliqué
.
D
3-step zigzag
Zigzag f
oot
0.5 - 4.0
1-4
Ov
ercasting and reinf
orcing f
abr
ic edges
, se
wing on elastic bands
,
decor
ativ
e seams
, dar
ning tears and patching w
or
k.
E
Elastic b
lindstitch
Blindstitch
1.0 - 3.0
1-3
F
or an in
visib
le hem f
astening with sim
ultaneous edge o
vercasting
on elastic f
abr
ics
.
F
Blindstitch
Blindstitch
1.0 - 3.0
3-5
F
or an in
visib
le hem f
astening on w
ov
en f
abr
ics
.
G
V
ar
i-Ov
er
loc
k
Zigzag f
oot
1.5 - 3.0
2-6
Ov
ercasting doub
le-knitted f
abr
ics lik
e tr
icot, jerse
y or other
lightw
eight f
abr
ics on edges to create shell edging.
Embellishing
an
y se
wing projects
.
A
Tr
iple str
aight stitch
Zigzag f
oot
S
2-6
F
or hard-w
ear
ing seams in fir
m f
abr
ics
, visib
le hems and visib
le
seams
.
B
Tr
iple str
aight stitch
Left needle position
Zigzag f
oot
S
2-6
F
or hard-w
ear
ing seams in fir
m f
abr
ics
, visib
le hems and visib
le
seams
.
C
Tr
iple zigzag
Zigzag f
oot
S
2-6
Elastic stitch f
or decor
ativ
e hem ends and quilting seams
.
D
Hone
ycomb stitch
Zigzag f
oot
S
1-4
Elastic
, decor
ativ
e stitch f
or decor
ativ
e seams on fle
xib
le mater
ials
and f
or se
wing on elastic thread and bands
.
E
Florentine stitch
Zigzag f
oot
S
1-4
Decor
ativ
e elastic stitch.
F
or decor
ating knitted or w
ov
en f
abr
ics
.
Also ideal f
or cr
azy quilting.
F
Reinf
orced o
ver
loc
k
Zigzag f
oot
S
1-4
Se
wing together and sim
ultaneously o
vercasting elastic f
abr
ics
, as
w
ell as decor
ating items of clothing, household te
xtiles and
handicr
afts
.
G
Stretch o
ver
loc
k
Zigzag f
oot
S
1-4
Se
wing together and sim
ultaneously o
vercasting elastic f
abr
ics
.
