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909A & 919A OWNER/OPERATOR MANUAL • 13
TO REPLACE THE SHARPENING STONES:
1. Remove the stones from the shaft by using a 10-millimeter metric wrench while gripping the stone
firmly with the left hand.
NOTE: The sharpening stone (cup shaped) is mounted on a left-hand threaded shaft. Turn the nut to the
right to remove. The deburring stone (cone shaped) is mounted on a standard right-hand threaded shaft.
Turn nut counterclockwise to remove. Always use a nut and washer to secure the stones to the shaft.
2. Assemble sharpener with new stones. Make sure that the sharpener fits into the two guide pins inside
its cover and tighten the sharpener cover locking knob.
3. Replace sharpener. Sharpener must be all the way down, protecting the top of the knife.
TO CLEAN THE SHARPENING STONES:
1. Place the stones in a solution of soap and water and allow to soak for approximately one hour.
2. Remove the stones from the solution and brush clean with a stiff bristle brush (Berkel P/N 4975-
09237).
3. Rinse the stones with water and dab with a paper towel to remove excess moisture.
4. Allow stones to air dry until the next day.
NOTE: Ensure the stones are completely dry before using them. If stones have chips, cracks, or metallic
buildup that can’t be cleaned, discard them.
CLEANING AND SANITIZING
WARNING
THE SHARP KNIFE IS EXPOSED DURING SEVERAL CLEANING STEPS.
TO AVOID SERIOUS PERSONAL INJURY:
1. Make sure the slicer is OFF.
2. UNPLUG slicer from outlet.
3. TURN thickness control knob all the way to the RIGHT to close the gauge plate.
4. Place PUSHER in its STORED and locked position.
5. Use ONLY recommended cleaning equipment and materials.