Cleaning method
(1) Cleaning the feed dog: Remove the screw between the needle plate and the feed dog, remove the cloth hair and dust, and add a small amount of sewing machine oil.
(2) Cleaning the shuttle bed: The shuttle bed is the core of the sewing machine and the most prone to failure. Therefore, it is necessary to remove the dirt and add a small amount of sewing machine oil.
(3) Cleaning of other parts: The surface of the sewing machine and all parts in the panel should be cleaned frequently and kept clean.
Lubrication method of sewing machine:
(1) Lubrication parts: various oil holes on the machine head, lubricating the upper shaft and the components connected to the upper shaft; components in the panel and the moving parts connected to each component; lubricating the presser foot and needle bar and the components connected to it; Wipe the lower part of the board and add less oil.
(2) Pay attention to the maintenance of the sewing machine: After the work is completed, insert the needle into the pinhole plate, raise the presser foot, and cover the machine head with the machine cover to invade with dust. When starting work, check the main machine first. What is the severity of the steps, whether there are special sounds, whether the needle is normal, etc. If abnormalities are found, they should be repaired in time; after the machine has been used for a long time, an overhaul should be performed. To be replaced with a new one.
Lubrication
Always use special sewing machine oil. After continuous use for a day or a few days, the oil should be fully refilled. If refueling between uses, the machine should be idled for one revolution, so that the oil is fully wetted and the excess oil is thrown out, and then the machine head is cleaned with a soft soft cloth. Wipe clean with the countertop to avoid soiling the sewing material. Then thread the sewing rags, wipe them with the movement of the sewing thread, and throw out excess oil stains until there are no oil stains on the rags before formal sewing.
Refueling site
(1) Each oil hole on the machine head lubricates the upper shaft and the parts connected to the upper shaft.
(2) The parts inside the panel and the moving parts connected to each part. Lubricate the presser foot and needle bar and the parts connected to them.
(3) Wipe the moving parts of the lower parts of the machine board and add less oil.
The amount of refueling at each refueling hole and refueling location need not be too much, just one or two drops will do.
maintenance
Secondly, the following points should be paid attention to when maintaining the sewing machine:
1. After the work is completed, insert the needle into the pinhole plate, raise the presser foot, and cover the machine head with the machine cover to invade with dust.
2. When starting work, first check the main parts, how they are on when you step on them, whether there are special sounds, whether the needle is normal, etc. If any abnormalities are found, they should be repaired in time.
3． After the machine has been used for a long time, an overhaul is required. If it is found that the parts are worn out, they must be replaced with new ones.