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Troubleshooting
Condition
The fabric is not
being fed
smoothly.
The needle
breaks.
The thread
breaks.
.
Skipped stitches 1.
2.
3.
The seam is not 1.
sewn neatly.
2.
3.
4.
Seam puckering.
Cause
1. The feed dog is packed with lint.
2. The presser foot has been raised.
3. Pressure of the foot is too weak.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The fabric is forcedly pulled.
1. The machine is not correctly threaded.
2. The needle or looper thread tension is too tight.
3. The needle is incorrectly inserted.
The needle is bent or blunt.
TheTheneedlemachineisisbentnot orcorrectlyblunt, threaded.
The needle is incorrectly inserted;::::::.
The needle and/or looper threS_:i i :_e
not correctly adjusted.
The machine is not cor_ i_ eaded.
The needle and/or the not suitA6i_:
for the fabric being sewnl :
The thread !s _i B_ween _: !_sion dis9_
Reference
See page 72.
Lowerthe presserfoot.
See page 14
See page 12.
See page 12.
Putlthefabriclightly.
See pages 24 _ 42 and 52.
See _ges 48 _ 50 and 54, 62.
S_ _e 12.
Se_ _e 12.
See 2.
See _24 42 and 52.
50and54,62.
See _ 42 and 52.
see 58,GeandG8
See 34, 38 and 42.
See pages 48 _ 50 and 54, 62.
See pages 24 _ 42 and 52.
See page 16.
See page 6.
See page 6.
See page 70.
Replace the upper knife.
(See page 70.)
76