Cleaning method of seated type lockstitch side seam sewing machine:
(1) The cleaning of the feed dog: remove the screws between the needle plate and the feed dog, remove cloth hair, dust, and add a small amount of seat internal oil.
(2) The shuttle-race: the shuttle-race is the core of the seat inside machine, but also prone to failure, therefore, to often remove dirt and add a small amount of seat inside oil.
(3) Cleaning of other parts: The surface of the seated type inner sewing machine and all parts in the panel should be cleaned frequently and kept clean.
Lubrication for seated type lockstitch side seam sewing machine：
(1) Lubrication parts:
a. the various oil holes on the head, lubricating the upper shaft and the components connected to the upper shaft;
b. The internal parts of the panel and the movable parts connected to each part. Lubricate the presser foot bar, the needle bar and the parts connected to it.
c. Wipe the movable parts of the lower part of the machine board and add less oil.
The refueling amount of each hole and part does not need to be too much, just one or two drops will do.
Must use special oil for seated type lockstitch side seam sewing machine . it should be fully oiled after one day or several days of continuous use. If oil is added between uses, the machine should be left idling for one revolution to fully soak the oil and shake off the excess oil, and then use a clean soft cloth to wipe the machine head and table surface, in order to avoid soiling the sewing material. Then thread on the rags and use the movement of the sewing thread to wipe off the excess oil stains until there are no oil stains on the rags before proceeding to the formal sewing.
Secondly, the following points should be paid attention to when maintaining the shoe upper sewing machine:
(3) Attention should be paid to the maintenance of the seated type internal machine: After the work is completed, insert the needle into the pinhole plate, raise the presser foot, and cover the machine head to prevent dust intrusion; when starting work, check the main machine firstly. If the machine is abnormal, it should be checked and repaired in time; if the machine is used for a long time, a major repair should be carried out, if there is a large wear part found , To replace with a new one.
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