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3
0.8 ~ 1.5 mm (3/64˝)
4
2
3
74
4
2
1
1
CARE OF YOUR MACHINE
Replacing the Upper Knife
To remove:
1. Turn off the power switch and unplug the machine.
2. Open the looper cover and side cover.
3. Deactivate the upper knife.
4. Remove the hexagonal bolt, and remove the
upper knife.
1
Upper knife
2
Hexagonal bolt
3
Stopper pin
4
Lower knife
To attach:
1. Insert new upper knife into the groove of knife
holder and stopper pin, then tighten the
hexagonal bolt slightly.
2. Turn the upper knife holder to cutting position.
3. Turn the handwheel toward you until the upper
knife comes to its lowest position.
Loosen the hexagonal bolt, and adjust the
position of the upper knife so that the edge of the
upper knife overlaps 0.8 to 1.5 mm (3/64´´) from
the edge of lower knife as illustrated.
Then tighten the hexagonal bolt firmly.
4. Close the looper cover and side cover.
Cleaning Upper Knife Area
1. Turn off the power switch and unplug the machine.
2. Open the looper cover.
Remove the waste pieces to the front with a lint
brush.
* You may use a vacuum cleaner to clean the upper
knife area or feed dog.
The lower knife will last over one year in normal
*
use. However, if you run over a pin or a hard
object, it may be required to replace both upper
and lower knives at the same time.
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Solución de problemas
