Brother 884-B31 Manuales de funcionamiento - Página 31
Navegue en línea o descargue pdf Manuales de funcionamiento para Máquina de coser Brother 884-B31. Brother 884-B31 36 páginas. Cover stitch machine / top cover stitch machine
Imprimir páginaCHAPTER 7
TROUBLESHOOTING
This sewing machine is designed for trouble-free operation. However, the following chart indicates trouble
which may occur if basic adjustments are not made properly.
Trouble
1. Does not feed
2. Needles break
3. Threads break
4. Skipped stitches
5. Stitches not uniform
6. Fabric puckers
Cause
Presser foot pressure too loose
1. Needles bent, or needle tip blunt Replace with new needle.
2. Needles incorrectly installed
3. Material pulled forcibly
1. Improper threading
2. Thread tangled
3. Thread tension too tight
4. Needles incorrectly installed
5. Wrong needle used
1. Needle bent, or needle tip blunt Replace with new needle.
2. Needle incorrectly installed
3. Wrong needle used
4. Improper threading
5. Presser foot pressure too loose
Thread tensions not adjusted
properly
1. Thread tension too tight
2. Improper threading or thread
tangled
Remedy
Turn the pressure adjustment
screw clockwise to increase the
presser foot pressure.
(See page 11.)
(See page 12.)
Install needles correctly.
(See page 12.)
Do not press or pull material too
hard when sewing.
Thread correctly.
(See pages 15-18, 20.)
Check spool pin, thread holders,
etc., and remove tangled thread.
Adjust the thread tension.
(See pages 11.)
Install needles correctly.
(See page 12.)
Use correct needle.
130/705H recommended
(See page 12.)
(See page 12.)
Install needle correctly.
(See page 12.)
Use correct needle.
130/705H recommended
(See page 12.)
Thread correctly.
(See pages 15-18, 20.)
Turn the pressure adjustment
screw clockwise to increase the
presser foot pressure.
(See page 11.)
Adjust the thread tension.
(See pages 11.)
Decrease thread tension when
sewing lightweight or fine material.
(See pages 11.)
Thread correctly.
(See pages 15-18, 20.)
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