You will need
- - instruction to the sewing machine;
- - a set of machine needles and threads of different numbers;
- - glass plate;
- - a magnifying glass.
Carefully read the attached user manual to your sewing machine. If you have a good understanding of the unit (including the needles) and sewing process, replace the needle won't be a problem. Just stick to the manufacturer's requirements.
Please note that a sewing machine can be adjusted to a certain standard needles (such as 130/705H or other). If you apply a non-standard tool, it may simply break. If required the unit can be reinstalled on a different standard by an experienced master.
Check that the new needle with the working thread in terms of thickness. To do this, take a tool with a long groove top; put the thread in the groove and feel the surface of the blade. The thread should fill the groove, but not to speak over him! If such a ledge is formed, you have chosen too thin a needle for the working thread.
The manual for the car – it is often given a list of numbers of needles and appropriate threads (for example, thread No. 80 of suitable needle No. 75, etc.). This will help you to choose a quality material for sewing.
If you found the needle that fit the settings of the sewing machine and the thickness of the yarn, insert it into needle bar. Put the tool on the glass surface and lift to eye level. If the rod is evenly located over the entire length, then the needle can be used – it is not curved.
Guide the nail plate along the needle, starting from the bulb. You will immediately feel if the edge is a little bent. The blunt tip can be detected with a magnifying glass – it will stand out white spot. Such a tool can not be used to avoid problems with machine stitching.
Finally properly insert a curved needle in the sewing machine. Don't forget that when refueling the needle bar, long groove should always be facing the needle thread guide. Typically, machines with a straight line filament dressed to the left; zig-zag line in front. If you are not familiar with the structure of the machine, refer to the diagram in the instructions – otherwise you may break the Shuttle mechanism.
To put the needle in the machine, lift the needle bar at top position and loosen the needle clamp screw. You will see a groove for installing the needle – it resembles the letter "P". Put the flatted needle (this is cut into the thickened part) to the bottom of the groove; the needle must enter the needle bar through Hagersten. You need to insert it up until it stops! Secure the new needle retaining screw.
Advice 2: How to replace a needle in the machine
Incorrectly installed the needle in the sewing machine can result in faulty move cars, skip stitches, break thread and needle would just break. To avoid this, follow some simple rules when changing the needle.
In stores of goods for needlework and Handicrafts are sold standard needles for household sewing machines which are suitable for any model. However, when the needle follow the type of fabric you plan to work. From the tissue depends on the thickness you need needle and method of sharpening.
There are different models of sewing machines, and method of installation of the needle can vary depending on the make and model of the car. When replacing needle (good, bent or broken) pay attention to which way turned flat side on the top of the needle (flatted). In some models the needle is inserted flat side facing away from you, the other flat side should look to the left (for example, "Podolsk"). Thread the needle is always inserted from the opposite side – where the long groove of the needle. That is, if the flat side is directed away from you, insert the thread, if she looks to the left, insert the thread from right to left.
Suspension strut support bearing install the needle to its highest position.
Unscrew or loosen the screw holding the needle in the machine device. Gently pull the needle or its broken part.
Insert the new needle all the way up, following the direction of the flat side of the needle. If you have no instructions and you didn't notice which side stood the previous needle, look at the last thread guide. On the same side, where it is located, should be a long groove of the needle, and, accordingly, the flatted needs to look in the opposite direction.
Tighten the screw until it stops.
Is the advice useful?
Change the needle as needed. Do not use thin needles (No. 80-90) with thick tissues and Vice versa (needle No. 100 is not suitable for delicate fabrics). Use different needles for different fabrics – for knit, denim, silk needle will vary. Do not use dull or bent needle.
You often have to deal with the replacement of the needles in the sewing machine due to breakdowns, some stick to sartorial rules. Never pull out working the fabric from under the foot movement itself; not "help" the running machine, pushing the fabric by hand. Ensure that the throat plate is always securely attached; install the foot only after lowering of the needle. If you have to put a line across the seam thick, do it carefully and at a slow rpm. If you have cut the upper thread sewing machine skips stitches badly and knocks when operating – try to replace the needle.
Study in detail the device for the needle of the sewing machine. She has a rod (blade); one end of this framework is the cutting edge, and the other flask. A little above the edge of the ear (using his pull-cord). Consider the bulb: it has convex and flat sides. On a flat surface a short groove (a groove), and convex – long. Do you remember that thread odevaetsya the needle always from the side of the long groove (see paragraph 6).