The oil leakage of the sewing machine seems to be a small matter, but if it is not solved, it will also affect the appearance of the product. The oil stains will contaminate the material, especially for some very strict foreign trade orders. A slight defect is not allowed. At this time, the problem is a very serious.

◆Adjustment of the oil leakage of the feed dog frame:

Oil leakage occurs in the feed dog frame. Generally, the oil scraper of the frame is worn or the sealant around the oil scraper cover of the frame falls off. In this case, just replace the feed dog frame oil scraper or re-add sealing glue . Be especially careful when replacing the oil scraper. There must be no scars around the oil scraper of the frame, otherwise the oil scraper will lose its function of preventing oil leakage.

◆In addition, all the old sealant must be cleaned up. When applying the sealant, be careful that there is no glue around the inner side of the bracket. If it is attached, the oil leakage prevention function will also be lost. Because when the glue sticks to the inner side of the bracket, the glue will flow to the oil scraper, making the oil scraper ineffective.

◆Adjustment of looper connecting bar oil leakage:　

The general situation is that the sealing ring of the looper connecting bar is damaged. As long as the new accessory is replaced, the problem can be basically solved.

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