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Operation 6-7
Sharpening
Sharpening with Diamond Stones
The grinding unit can be set by means of the external micrometric control A to
increase or decrease the sharpening effect.
Setting requires utmost attention as the life of the knife and the stones depend on it.
Turn control knob A (fig. beside) counterclockwise until the stones, when in contact
with the knife, cause poor sparking which ceases after 5 - 8 cm.
ABSOLUTELY PREVENT SPARKING AROUND THE STONES.
This would cause a rapid stone wear.
The position of the two stones is set by Camoga so that sharpening generates a
symmetric bevel. This position shall not be altered.
NOTE: USE SETTING KNOB B ONLY IN THE CASE OF POOR
BEVEL SYMMETRY OR FOR SETTING WHEN THE
STONES ARE REPLACED
Dressing
When the stones become glossy, dress them with a stick.
DO NOT USE ANY OTHER DRESSER
(carborundum, rotary type, etc.).
To dress the stones remove central cover plate C3 (fig. 1) and turn key switch SA1
(par. 6-2)
PROCEED WITH MAXIMUM CAUTION.
Bevel Symmetry
Check the bevel symmetry through the electro-optical viewer.
If symmetry is poor, sharpen only with the stone on the narrower side of the bevel
(par. 6-5).
NOTE: WHILE WORKING, THE SHARPENING PROCESS
MUST BE CONTINUOUS WITH VARIABLE INTEN-
SITY ACCORDING TO THE KIND OF JOB TO BE
DONE.
B
A
C
D