18
Trouble Shooting
Co nd i t i on
The m a c hin e d o e s no t
ru n sm o o t hl y a n d i s
no isy.
Th e need le thre ad
bre ak s.
1. Th rea ds ha ve b ee n c au gh t in ho ok
mech anism.
2. Th e f ee d d og is pa ck ed with lin t.
Cause
2. Th e n ee d le th re ad t en sio n is t o o ti ght
3. Th e n ee d le is be nt o r b lu nt.
4. Th e n ee d le is inc o rre ctl y in se rted .
5. Th e f ab ric is n o t b e in g d ra wn t o
th e ba ck whe n se win g i s fi nis he d .
6. Th e t hre a d is e it he r t oo he av y o r
to o f in e fo r th e ne e dl e.
1. Th e n ee dle t hread is no t thre ad ed
pro perly.
Th e need le break s.
1. The needl e is in correc tly inse rted .
2. The needl e is b ent or b lunt.
3. The needl e clamp screw is loo se .
4. The ten sio n o f the n ee dle th read
is too tight.
5. The fab ric is not dra wn to the ba ck
whe n sewi ng is fini sh ed .
6. The needl e is to o fi ne for the
fabric be ing se wn.
7. The sti tch se lecto r ha s bee n t urne d
while th e n ee dle wa s in the mat erial.
The bobbi n th read
b rea ks.
1. Th e b ob bin thread is not thread ed
prop erly in th e bob bin case.
2. Lint h as col lected in th e b ob bi n cas e.
3. Th e b ob bin is d amage d and doesn' t
t um smoot hly.
S k ip pe d s tit che s
1. Th e needle is i ncorrectly inserted.
2. Th e needle is b en t or blunt.
3. Th e needle a nd /o r threads are not
sui table for the work bein g sewn.
Ref e ren ce
S k ip p ed stit che s
(Co n t inu ed )
See Page 18
See Page 18
See Page 7
See Page 8
See Page 5
See Page 5
See Page 11
See Page 5
See Page 5
See Page 5
See Page 5
See Page 8
See Page 11
See Page 5
See Page 9
Cle a n t he bo b bin c as e.
E xch an ge bo b bin .
See Page 7
See Page 5
See Page 5
See Page 5
C o n d i t i o n
S ea m Puc ke r ing
S t i t c he s f o rm l o op s
b e lo w t h e wo rk .
Th e c lot h is no t
f ee d in g sm oo t hly.
Th e m achi ne do es no t
work .
Th e b utt on hol e
st itc he s are not
bala nc ed .
Cause
Re feremce
See Page 5
See Page 7
See Page 8
See Page 7
See Page 5
See Page 8
See Page 5
See Page 18
Make the stitches
longe r.
See Page 3
See Page 18
See Page 6
S ee Page 9
Do n o t f o r ce t h e
f ab ri c f o r gu i d i n g .
Make the stitches
smaller.
4.
A BAL L POINT
n ee dl e is no t
b ein g u se d fo r se win g s tret ch , ve ry
fi ne f ab rics and sy nth eti cs.
5. Th e ne ed le thre ad is n ot t hre ad ed
p rop erly.
1 .
The ne ed le t hre ad t en sio n i s to o loose .
2 .
The ne ed le i s e ith er to o h ea vy or to o
fine fo r th e th rea d.
1.
The f eed dog is packe d with lint.
2.
The stitches are too fine.
1.
The m achine is no t plugged in.
2. A thread is ca ught in the ho od race.
3.
Cl utch knob is disengag ed for th e
b ob bin winding .
1.
St itch le ng th is n ot suitable for
the fabric be ing se wn.
2.
The w ork is b eing pulled or held
back.
1. Th e n ee dle thre a d te nsio n is too
tig ht.
2. Th e m a chine is not t hrea ded
co rre ct ly.
3. Th e n ee dle is to o he avy for th e
Clo th b eing sewn.
4. Th e stit ch es a re too long
for the
fab ric b ein g se wn.
Wh en s ewin g e xtrem ely light we ig ht
ma teria ls, P lace a sh eet of tissue
un dern eath the fabri c.
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