Troubleshooting - Kunft KSM2612 Manual De Instrucciones

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
upper
thread
breakages
Skipped
stitch
needle
breakages
Maq-Costura-KSM2612-Manual-2.indd 22
Reason
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. 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. 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.
22
Correction
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.
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
configuration;
5. re-threading according
to the above correct
method.
1. replace with a good
needle;
2. Insert the needle
correctly [flat 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.
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