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To Deactivate the Upper Knife
1.
Turn off the power switch and unplug the machine.
2. Open the looper cover and side cover.
3. Pull out the upper knife release knob and slide it
down along the guide until it comes to its lowest
position.
4. Turn the handwheel to check if the upper knife is
deactivated.
5. Close the looper cover and side cover.
Upper knife release knob
Upper Knife
To Activate the Upper Knife
1.
Turn off the power switch and unplug the machine.
2. Open the looper cover and side cover.
3. Pull out the upper knife release knob and slide it
up along the guide until it comes to its highest
position.
4. Turn the handwheel to check if the upper knife is
activated.
5. Close the looper cover and side cover.
Upper knife release knob
Upper knife
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