A household sewing machine is an indispensable tool for a housewife. This little helper can do it all. Hemming trousers or a skirt, replacing a zipper on a jacket, overcasting the edges of curtains, and even embroidering - all this is possible for a housewife if she knows how to use a sewing machine. But, unlike other household appliances, the sewing machine is a very capricious unit, sometimes just turning out to be sewing. In order for the device to be your reliable assistant, it is useful to know why the sewing machine does not sew. In this article, we will analyze all the main malfunctions of such devices and give advice on how to fix them.
Main malfunctions of sewing machines:
- mechanism of the presser foot does not feed or does not feed fabric well;
- break thread;
- needle breaks;
- fabric does not move;
- shuttle malfunctions;
- loose drive belt.
The machine feeds the fabric poorly
This kind of malfunction is very common. With the correct operation of the machine, the fabric should move without jerks, evenly, at the same speed. If this is not the case, then the fabric feed mechanism is most likely defective. It happens that the hostess herself is to blame for the cause of such a breakdown, who, for sewing speed, pulls out the fabric, helping the machine with her hands. As a result, the infeed conveyor may malfunction. In addition, pulling the fabric with force can bend or even break the needle.
If the feed mechanism is defective, you will need to adjust it. The feed dog is not close enough to the presser foot, causing the fabric to slip. Adjusting the rail is a rather troublesome business, and in this case it is better to contact a professional adjuster. It happens that after prolonged use, the teeth of the feed rail become blunt. To avoid this, do not allow the sewing machine to run idle without fabric.
Thread break
There are a number of reasons why the sewing machine does not sew a stitch and the thread breaks. One of them is incorrect upper thread tension adjustment. The thread is simply overtightened and breaks when fed, not having time to follow the needle. To achieve correct operation, you must first completely loosen the upper thread regulator, and then, gradually increasing the tension, achieve the correct operation of the machine, in whichthe thread does not break.
Another reason is a crooked needle. During operation, it can bend and touch the needle plate or the presser foot, which presses the fabric. As a result, the thread clings to the edges and breaks. The sewing machine "Chaika" is especially susceptible to this. Why other machines do not sew, we will consider further.
Often the thread can break, oddly enough, due to its quality. Threads for sewing machines and for hand sewing or embroidery are noticeably different. For hand sewing - cotton, have an uneven structure and flounder during operation. If such threads are put in a sewing machine, they will quickly become loose and tear. It is important to choose high-quality threads for sewing machines. They are thin and stretchy.
Needle breaks
This is also a serious malfunction, due to which the sewing machine does not sew. Why does the needle break? There may be several reasons too. The first of these is the incorrect installation of the needle itself in the needle bar. If it is not inserted all the way, then in the process of work it can hit the shuttle and inevitably break. The position of the needle must be constantly checked. If its fastening in the needle bar is loose, then you need to tighten it, after inserting the needle up to the stop.
Often a needle breakage occurs due to its incorrect selection. If, after sewing thin fabrics, you decide to sew jeans with the same needle, this will inevitably lead to breakage. The needle must be selected according to the thickness and type of fabric. For coarser fabrics, there are special needles thatdiffer in thickness and sharpening. There are also universal needles suitable for all types of fabrics. In addition, needles can break due to poor quality material from which they are made. Don't buy cheap needles from unknown sellers and you can avoid wasting money.
Shuttle defective or out of adjustment
Why doesn't the hand sewing machine "Podolsk" sew? Most likely, this is due to the work of the shuttle. The quality of these machines often depends on its condition. What can be faults? Dirt or moisture can get into the shuttle, then it can turn tightly, and in some cases even jam. Because of this, the manual sewing machine does not sew. Why is this happening?
Long idle time of the machine
If you have not used the sewing machine for a long time, moisture may enter the hook, which will inevitably lead to corrosion. To avoid this, you need to periodically lubricate the machine, even if it has been idle for a long time. How to do it correctly is written in the instructions for your sewing machine.
It's another matter if dirt gets into the shuttle. This can be, on the contrary, from prolonged and continuous operation of the machine. The threads you are sewing with are not perfectly clean: they may have dirt or dust on them. Together with the lubricant, all this forms a viscous mass, which clogs the shuttle. To avoid this, periodically the shuttle must be disassembled and cleaned, adding new grease.
Loose drive belt
Another reasonwhy the sewing machine does not sew, there may be a loose drive belt. This can be noticed immediately after you turn on the machine and press the drive pedal. The motor can spin idle, but the machine will not sew. This is easy to fix without calling the wizard. You need to loosen a couple of bolts on the engine mount and move it down a little, checking the belt tension with your hand. As soon as it is taut, secure the engine in this position. Do not forget to turn off the power to the machine before this operation.
If you have an old foot operated machine, the above action will not work. These devices do not have a belt tensioner. In this case, the belt must be removed and shortened by approximately one centimeter. Then fasten with a bracket and install back. It must be remembered that it is also impossible to pull the belt. This may cause the machine to run hard and break the pulleys.
In this article, the main answers were given to the question of why the sewing machine does not sew. Most breakdowns can be fixed on your own. But with such as fine tuning, it is best to contact the master or the service center. No need to save where you can lose more.
