26
(1) Adjusting the height of the knife
A. The knife② is operated by the lever① at the center of the sewing machine. If the lever① is pulled down, the cutting
and sewing of the material can be done simultaneously. If the lever① is pulled up, sewing is done without cutting.
B. Loosen the knife fixing screw③ when the lever① is pulled down and adjust so that Area A of knife② is about 0.5mm
above the top face of the needle plate④. Then, tighten the knife fixing screw③.
A. Set the stitch length adjusting dial to “0.”
※ It is a standard that the edge of the blade ② meets the center of the needle ⑤.
To adjust the front-back position of the knife, loosen the knife plate fixing screw⑥ and move the knife plate back and forth.
The adjustable width range of the knife edge is from 2mm forward to 3mm backward from the needle center.
(3) Adjusting the left-right position of the knife
A. To adjust the left-right position of the knife②, loosen the knife frame fixing screw⑦ and move the knife frame⑧ sideways.
B. After loosening the knife frame fixing screw⑦ and adjusting the knife side so that it would touch the side of the needle
plate④, tighten the fixing screw⑦.
C. If the knife③ is too close to the needle plate④, there may be an overload on the knife when in operation; on the other
hand, if the adhesion is too weak, there may be problems when cutting the material. Therefore, the lever① must
always be operated after adjustment to check whether the knife② movement is smooth.
(2) Adjusting the front-back position of the knife
21) Knife Adjustment (KM-506-7/KM-530-7 Series)
[Fig. 48]
Area A
[Fig. 49]
⑥
②
④
⑤
②
⑧
⑦
To Next Page
Loading...
