1. Cleaning of sewing machine

(1) Cleaning of cloth feed teeth Remove the screws between the needle plate and the cloth feed teeth, remove the cloth wool and dust, and add a small amount of sewing machine oil.

(2) Shuttle bed cleaning shuttle bed is the core of the work of the sewing machine, but also the most prone to failure, so often remove dirt and add a small amount of sewing machine oil.

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

Second, the lubrication of sewing machine

Special sewing machine oil must be used. The sewing machine should be fully oil after a day or a few days of continuous use. If refueling is used between uses, the machine should be idled for a turn, so that the oil is fully infiltrated and the excess oil is thrown out, and then the head and the table are wiped clean with a clean soft cloth to avoid dirty sewing material. Then thread and sew the rag, use the movement of the sewing thread to wipe off the excess oil, until there is no oil on the rag, and then the formal sewing.

Refueling parts are:

(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 to each component. Lubricate presser lever and pin lever and their connected parts.

(3) Clean the moving parts of the lower parts of the machine plate and add less oil.

The amount of refueling holes and refueling parts need not be too much, one or two drops on the line.

Third, maintenance of the sewing machine should also pay attention to the following points:

1. After the work is completed, insert the needle into the pinhole plate, lift the press foot, and cover the head with the hood to prevent dust chips from invading.

2. When starting to work, first check the main parts, how heavy and heavy it is, whether there is special sound, whether the machine needle is normal, etc. If abnormal phenomena are found, it should be repaired in time.

3. After the machine is used for a long time, it is necessary to carry out a major repair. If the parts are found to be worn, they should be replaced with new ones.