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7.6) Blade Adjustment and Replacement
7.6.1) Fixed Blade Adjustment
1) Loosen the fixed blade tension adjusting nut ①
with a box wrench and loosen the tension adjusting
screw ②.
2) Move the moving blade and make its tip contact the
tip of the fixed blade as in the figure.
3) Adjust the fixed blade tension adjusting screw and
make the tips of the two blades smoothly.
4) After adjustment is complete, use the box wrench
in the accessory box to fasten the tension adjusting
nut ①.
①
②
Box wrench
Fixed blade
Moving blade
7.6.2) Moving Blade Replacement
1) To replace the moving blade ①, first of all,
manually turn the pulley to locate the needle at the
highest position, and then remove the needle plate.
2) Loosen the two moving blade fixing screws ② as
marked in the figure.
3) For assembly, follow the reverse order of
disassembly.
7.6.3) Fixed Blade Replacement
1) To replace the fixed blade ①, loosen the hook
holder screw ② as in the figure. Then remove the
washer ③ and the hook holder ④ and loosen the
fixed blade screw ⑤.
2) For assembly, follow the reverse order of
disassembly.
①
②
④
③
②
⑤
①
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