Key Points For Maintenance Of Sewing Machine

　　 1. Cleaning of sewing machine

(1) Cleaning of the feed dog: remove the screw between the needle plate and the feed dog, remove the cloth wool and dust, and add a small amount Sewing oil 。

(2) Shuttle bed cleaning: The shuttle bed is the core of the sewing machine and the place most prone to failure. Therefore, it is necessary to remove dirt and add a small amount of sewing oil frequently.

(3) Cleaning of other parts: the surface of the sewing machine and all parts in the panel should be cleaned frequently.

　 2. Lubricating the sewing machine

Special sewing oil must be used. The sewing machine should be fully oiled after a day or several days of continuous use. If the machine is oiled between uses, it should be allowed to idle for a while, so that the oil is fully saturated and the excess oil is thrown out. Then, the machine head and table top should be cleaned with a clean soft cloth to avoid contaminating the sewing material. Then thread and stitch the rags, wipe them with the movement of the sewing thread, throw out the excess oil stains until there is no oil stains on the rags, and then start the formal sewing.

Refueling position maintain yes:

(1) Each oil hole on the head lubricates the upper shaft and the components connected to the upper shaft.

(2) The components inside the panel and the moving parts connected by each component. Lubricate the presser foot bar and needle bar as well as the components connected to them.

(3) Wipe the moving part of the lower part of the machine plate and add less oil.

It is not necessary to add too much oil to each oil hole and oil filling part, just one or two drops.

　　 Secondly, pay attention to the following points when maintaining the sewing machine:

(1) After the work is completed, insert the needle into the pinhole plate, lift the presser foot, and cover the head with the machine cover to prevent dust from entering.

(2) When starting to work, first check the main parts, how light and heavy they are when stepping up, whether there is any special sound, and whether there is a reasonable gap in the axial direction. Then open the rear cover of the machine, starting from the main shaft wheel, and check whether there is seam winding between the main shaft wheel and the shaft sleeve; Whether the tooth lifting and feeding eccentric cams are annealed due to high oil shortage temperature; Whether the needle is normal, etc. If any abnormal phenomenon is found, it should be repaired in time.

(3) After the machine has been used for a long time, it needs to be overhauled. With the improvement of fabric utilization rate in this era of soaring prices, adjust the left limit size and height of the needle and the downward curved needle tip to meet the standards. Automatic controlled by computer Sewing machine It can be used as a substitute for labor. If parts with large wear are found, they should be replaced with new ones.