Kunft KSM2612 - Troubleshooting; Upper thread breakages; Skipped stitch; Needle breakages

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2. Rotate the hand wheel [27] to lift the sewing needle [17] to the
highest position and then adjust the function adjustment wheel [3]
to function 1 or 2.
3. The sewing procedure is the same as steps for straight sewing
[Please refer to chapter 2.12. of this instruction].
2.3. Troubleshooting
Fault Reason Correction
Upper
thread
breakages
1. Incorrect threading;
2. The thread is over
tensioned;
3. The thread is too thick
to the needle;
4. The sewing needle is
incorrectly inserted;
5. Defective bobbin;
6. Damaged needle.
1. Re-threading;
2. Reduce tension;
3. Choose a bigger
needle;
4. Remove and reinsert
the needle;
5. Replace with a better
bobbin;
6. Replace with a better
needle.
Skipped
stitch
1. The sewing needle is
incorrectly inserted;
2. Damaged needle;
3. Incorrect size of needle;
4. Improper cooperation
of the presser foot;
5. Threading did not follow
the requirements.
1. Change the needle and
reinsert;
2. Replace with a good
needle;
3. Choose an appropriate
needle to the thread
and fabric;
4. Check and correct
the presser foot
conguration;
5. Re-threading according
to the above correct
method.
Needle
breakages
1. Damaged needle;
2. The sewing needle is
incorrectly inserted;
3. Incorrect size of needle
[for fabric];
4. Improper cooperation
of the presser foot;
5. Over tension of the
thread feeding;
6. It is forbidden to pull
the fabric hard during
operation;
7. Threading did not follow
the requirements.
1. Replace with a good
needle;
2. Insert the needle
correctly [at part
backwards];
3. Choose the appropriate
needle;
4. Install the presser foot
correctly;
5. Adjust to the
appropriate tension;
6. Do not operate like this;
7. Re-threading according
to the above correct
method.
Maq-Costura-KSM2612-Manual-2.indd 22 18/02/19 18:35