HELPFUL HINTS
Due to improper operation, the following problems may occur, the control table,
looking for ways to solve the problem.
UNDESIRABLE PHENOMENA PROBLEM REASON SOLUTION
BROKEN NEEDLE
1. Needle bending or breakage
2. Needle is not installed in place
3. The fabric is stretched too tightly
1. Replace the new needle
2. Put the needle in the correct
position
3. When sewing, do not pull fabric
BROKEN THREAD
1. Needle threading is incorrect
2. The thread to be jammed
3. Needle thread tension is too tight
4. Needle is not installed in place
5. Improper needle selection
1. Threading correctly
2. Check the thread is not
stuck in spoolstand
3. Adjust the needle thread tension
4. Put the needle in the correct
position
5. Select the proper needle
SKIPPING STITCH
1. Needle bending or breakage
2. Needle is not installed in place
3. Improper needle selection
4. Needle threading is incorrect
1. Replace the new needle
2. Put the needle in the correct
position
3. Select the proper needle
4. Threading correctly
STITCH ERROR
The needle thread tension is not
adjusted well
Readjust the needle thread tension
3-THREAD OVERLOCK OR
4-THREAD OVERLOCK STITCH
IS IRREGULAR, UPPER LOOPER
THREAD DOES NOT APPEAR
IN THESTITCH
2-thread spreader installation did not
remove
Remove 2-thread spreader installation
MACHINE IS NOT RUNNING
(WHEN THE POWER SWITCH
IS TURNED ON)
Power supply is blocked
Check connection and wire of the
machine
IRREGULAR SELVEDGE
TRIMMING
1. There is cloth waste between knives
2. Lower knife is blunt
1. Clean upper knife and lower knife
2. Replace lower knife
STITCH WRINKLE
1. Needle thread tension is too tight
2. Dierential adjustment is not set
correctly
3. Threading is incorrect, causing the
thread to be jammed
1. Reduce the tension of needle
thread
2. Reset dierential settings
3. Threading in the right way
TRANSPORT FABRIC IS NOT
SMOOTH
1. The stitch too close
2. When sewing thick fabrics, presser
foot is too low
3. When sewing thin fabrics, presser
foot is too high
1. Increase stitch length
2. Increase the pressure of presser
foot
3. Reduce the pressure of presser foot
103
Texi Tegra 4 INSTRUKCJA 2019.indb 103Texi Tegra 4 INSTRUKCJA 2019.indb 103 18.09.2020 09:4218.09.2020 09:42
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