Knife lower serger 51 class

Installing knives on a serger 51 class.
Cutting edge sew fabrics produce two knives: upper moving knife 4, mounted on a swinging lever of the knife 7 and the bottom 11, which is fixed in block 12 of the machine body.
The position of the upper knife 4 set depending on the width of the wrap.. The upper knife is mounted in a holder 5, which can be moved between in the ears of the lever 7. To move the knife need to remove with a screwdriver the screw 6 of the clamp 10 on the holder 9 and to move the holder in one direction or another, depending on the width of the wrap.. To ensure the normal cutting material, the upper knife 4 with its plane should be tight, with no noticeable gap, adjacent to the plane of the lower knife 11. After the upper knife 4 is to be installed in accordance with the required width of the wrap. to him down the lower knife 11, produce this movement of the pads 12 by means of screws 14 with knurled round cooking. The front screw on the housing 13, the fixing strip pre-released with a screwdriver. And the lower and the upper knife can be adjusted also in the vertical direction after the release of fastening screws: 8 for the top and 1 for bottom knife. The lower knife is installed in the block so that its cutting edge was at the level of the needle plate. The upper knife is mounted so that its cutting edge overlaps the cutting edge of the lower blade, approximately 1 mm. When you change the width of the wrap. you have to adjust the position of the plate 2 by the pressure foot, releasing the pre-fixing screw 3.

You can buy 51 class lower knife by placing it in the basket.