Typical faults usual straight horizontal

sewing machine and troubleshooting:

1 Open the upper thread

1.1 Change the needle if the new check whether it is correctly inserted.

1.2 Check and re-fill the upper thread

1.3 If all else fails check not too upper thread is tightened and released as needed (weaken). Perhaps in this case the upper thread in the weave stitches on the wrong side of a loop, it is a consequence of excessive tension lower niti- weaken the spring of the bobbin case

1.4 If all else fails, call a mechanic.

2. The line "winds"

2.1 Loop top-excessive needle thread tension - loosen the upper thread, if not help, adjust the tension of the bobbin thread.

2.2 Hinge bottom-excessive lower thread tension - loosen the lower thread, if properly adjusted bobbin thread, pull the top.

3. Skipped stitches

3.1 Change the needle if the new check whether it is correctly inserted.

3.2 Inconsistency thickness of the fabric being needle - needle pick the right size according to the thickness and the kind of fabric being sewn.

Modern sewing machine is a high-tech, precision mechanical device, so no

special knowledge is not necessary to experiment. Do not change the factory settings of the basic mechanisms.

3. The correct tension of the upper and lower strands

The correct tension of the upper and lower strands of the sewing machine directly affects the quality of your stitches sewing machine, for example, for delicate fabrics the lower thread tension should be minimal, but all the same, it should be the same.

After adjusting the lower thread tension to begin adjusting the needle thread tension, the basic principles that you hold, this causal link weave the upper needle thread and bobbin thread sewing machine.

You look at the weave, and if you line "winds" from the top, it means that you need to loosen the upper thread tension, thus you balance the tension of the upper and lower strands of the sewing machine, and the weave is obtained in the middle of the processed material.

If you have a loop is formed from the bottom of the processed material, so you need on the contrary, increase the upper thread tension. As you can see, everything is very simple.

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