How much do you know about sewing machine maintenance?

1. The first step of maintenance is "cleaning", try to clean it once a day. If the daily maintenance of the sewing machine can be done well, dust and thread ends will not accumulate, failures will not occur, and the machine can be used in a good condition. While cleaning the machine, some abnormalities can also be found. In the repair of machine failure accidents, most of the reasons are due to the accumulation of dust or thread ends.

 

Not only must the sewing machine be cleaned cleanly, but abnormalities may also be found. For cleaning, maintenance is crucial.

 

Of course, it is not necessary to make the surface of the needle bar and the upper looper shaft completely free of oil. As long as the dust is removed, a light wipe is enough. For parts with complex shapes, use a used toothbrush to clean, and the dust can be easily removed. In addition, some sharp parts on the sewing machine should be very careful not to be injured during the cleaning process.

 

For the sewing machine, not only do not make it break down but also ensures the quality of sewing, there are 5 most important places. If these places can be cleaned thoroughly and cleanly, beautiful seams can be sewn. These places are cleaned in order, and it is recommended to clean them once a week.

 

1. Around the machine needle (wipe the needle bar);

2. Cleaning around the rotary hook/looper;

3. Around the thread cutting knife (cloth cutting knife) (cleaning of the thread cutting mechanism);

4. Cleaning in the oil pan;

5. Overall wiping (including the machine table) wiping and cleaning.

 

Different models, different shapes, and important cleaning places are basically the same.

 

2. The second step of maintenance is "lubrication". Lubrication is the guarantee. Try to lubricate once a day. When performing maintenance on your sewing machine, use genuine oil that is most suitable for your sewing machine.

 

 

Genuine engine oils have different properties. If you use an unsuitable type of engine oil, it will cause the oil inside the machine to fail to circulate and leak.

 

 

1. How to adjust the amount of oil supplied to the rotary hook of the sewing machine (be sure to turn off the power).

Use this oil quantity adjustment screw to adjust the confirmed oil quantity as follows. For details on the adjustment method, refer to the installation manual of the sewing machine.

 

1) Raise the presser foot and let the hook rotate for more than the 30s.

 

2) Put test paper such as copy paper under the rotating hook every 5s. Please do not move the paper during the measurement. Also, be careful not to touch the fast-rotating hook with your fingers.

 

3) At this time, linear oil stains will be left on the paper. According to the width of the oil stain, you can judge whether the oil quantity is appropriate.

It is normal for the width of the oil stain to be within 1~2mm. According to different sewing products, the amount of oil will increase or decrease, but if it decreases too much, the rotary hook will be burnt when the machine is sewing at high speed. , please pay attention to this point.

 

2. About the lower shaft fixing screw oil core

When the adjustment screw cannot adjust the oil volume, it is possible that the oil core of the lower shaft fixing screw is blocked by garbage or the like. At this time, it is necessary to remove the rotary hook, clean the oil core or replace it with a new one. In addition, since the material of the lower shaft fixing screw is relatively soft, please pay attention when installing it.

 

3. Adjustment of the oil volume of the machine head

Generally, the amount of oil on the face does not need to be adjusted, but in the case of less oil supply to the machine head or more serious oil precipitation, please adjust it in the following order. Remove the panel, and rotate the oil quantity adjustment pin on the upper shaft to adjust the oil quantity. When the oil does not come out after adjusting the face, it may be that there is a problem with the oil supply device from the oil pump to the face. In addition, if there is too much oil on the bottom of the face, there may be a problem with the circulation mechanism from the face to the circulation pump.

 

We recommend industrial sewing machines to choose sewing machines from big brands such as Juki, singer, pfaff, Durkopp Adler, etc., with low maintenance and long service life.

JUKI brand industrial sewing machines are mainly produced in China and Japan and sold to more than 170 countries in the world. The industrial sewing machines of the JUKI brand are ranked first in the world in terms of market share, quality, and variety, which have been recognized by major famous brands in the world's apparel industry. Especially in the market of advanced countries, whether the garments sold are sewn with JUKI brand industrial sewing machines is an important basis for evaluating their quality. If you are interested in JUKI BRAND SEWING MACHINE, we have the most complete models.

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