Sears OVERLOCK 3/4D 385.16631 User Manual
Page 47
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SECTION
b .
PERFORMANCE PROBLEMS CHART
What to Do When
Condition
Cause
Reference
The fabric is not being
fed smoothly.
1. The feed dog is packed with lint.
2.
The presser foot has been raised.
See page 38.
Lower the presser foot.
The needle breaks.
1. The needle is incorrectly inserted.
2.
The needle is bent or blunt.
3.
The fabric is forcefully pulled.
See page 28.
See page 28.
Pull the fabric lightly.
The thread breaks.
1. The machine is not correctly Threaded.
2.
The needle or looper thread tension is too tight.
3.
The needle is incorrectly inserted.
4.
The needle is bent or blunt.
See pages 9 ~ 17 and 24.
See pages 21 ~ 25 and 3 3 3 7 .
See page 28.
See page 28.
Skipped stitches
1. The machine i$ not correctly threaded.
2.
The needle is bent or blunt.
See pages 9 ~ 17 and 24.
See page 28.
, The seam is not
sewn neatly.
1, The needle and/or looper thread tensions are not correctly adjusted.
2.
The machine is not correctly threaded.
3.
The needle and/or the thread are not suitable for the fabric being sewn.
4,
The thread is not between the Tension discs.
See pages 21 25 and 33 37.
See pages 9 ~ 17 and 24.
See pages 31, 33, 35, 36 and 37.
See pages 11, 13, 15 and 17.
Seam puckering.
1. The needle or looper thread tension is too tight.
2.
The machine is not correctly threaded,
3.
The needle plate is not suitable for the use,
4.
The differential feed dial is not set at the proper position.
See pages 21 ~ 25 and 33 ~ 37.
See pages 9 ~ 17 and 24.
See page 30.
Sea page 26.
The machine does
not operate.
V
1. The machine has not been plugged in firmly.
2.
The power switch is turned off.
See page 5.
See page 5.
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