If you bought a new sewing machine, and it does not work the way you would like, it's not a reason to carry it in for repair or return to the store.
It can be simply configured.
This means that we need to adjust the machine before starting work.
Spring, which shakes the thread must be sopodkruchena to cap filled spool and located in the raised end of the elongated filament of our state gave the thread to unwind, until we pull it up sharply.
The upper thread is passed through the supply system. Typically, the process looks like this: the thread passes through some metal eyelets, then passes through a tension control, then it is passed through the eye of niteprityagivatelnogo lever and a few staples enters the eye of the needle.
On the way we pass the thread clear. We now move on to customizing the tension. The most beautiful and high-quality line we will get if the lower and upper strands intertwine in the depth of the material is invisible to the eye. So happens if the thread tension is correct. The needle thread tension mechanism we can customize the front panel of the machine, and the bottom? adjustment screw located on the shuttle.
Setting the lower thread tension is easy to hold,therefore we will not consider it. And we will address better the process of setting upper thread tension, comprising a twisting screw which compresses the cup-washer. So, to check we take a small piece of fabric and then sew it. If hanging loops are obtained, then the upper thread is too loose or too tight. If the seam is relatively flat, it look? which side is stronger visible nodules plexus upper and lower thread. Nodules are usually easily palpated finger. If the tension is set up correctly, all nodules no longer palpable.
Nodules are located approximately in the middle seam and palpated (hardly be felt). This suggests that the thread tension optimally.
Nodules grope on the lower side. This means that the upper thread is tight enough.
Nodules grope on the upper side of the seam. In this case, the needle thread tension higher than normal.
The hinges are obtained hanging? The upper thread tension is strongly deviates from the norm, in one way or the other.
The seam will be weak and unfit if the bobbin thread slightly taut on the bobbin case or not tight. The upper thread at the same time also has a slight tension.
Foot pressure adjustment can be carried out atby a spring. Automatically, this setting is carried out in the most advanced models of sewing machines. For sewing thick materials provide enough foot lift to a height of 12 mm. If the foot is a great burden on the material, it can cause the displacement of bound layers, difficulty running, and sometimes tissue gap. If the presser foot to the material almost no pressure, you get the wrong seam.