Virax GR2-12 Manuel D'utilisation page 23

Operation of the set nut and the jamb nut
Step 1: Position the tube on the drive shaft. Pump and
make contact between the upper roller and tube. DO
NOT EXERT PRESSURE.
Step 2: Turn the set nut until making contact with the
hydraulic cylinder.
Step 3: Turn the jamb nut until making contact with
the set nut.
MACHINE PREPARATION
ENGLISH
Step 4: Take note of the vertical (15) and horizontal (0)
calibration position.
Step 5: Fix the groove depth. For example for 4" the
depth is 2.11mm. Pull back the jamb nut 2.11mm on
the vertical scale. Each line of the circular scale is
equivalent to 0.1mm.
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