probst HVZ-ECO Operating Instructions Manual page 70

Adjustments
Pull the spring bolt upwards, rotate around 180° and
lock in position (in nick).
Adjust gripping depth and rotate the spring bolt again
around 180°.
Adjustment sticker
51400034
Adjust the gripping depth distance approx. on 100mm -
150 mm from the middle of the gripping depth to the
outside edge of the stone layer (see stickers at the
device).
Fig. 5
100-150 mm
V3
20 / 41
Fig. 6
GB