probst HVZ-ECO Operating Instructions Manual page 75

Adjustments
The device (HVZ-ECO) is optimally adjusted, if during the gripping procedure with opened device the steel lamellas
(machine side) contact directly on the stone layer and when the steel lamellas (laying side) have distance to the
stone layer of 100 -150 mm. (Fig. 20).
51400034
Pull main gripping in the corresponding borehole
position (Fig. 19) and insert bolt again (see fig. 17).
Secure bolt with safety clip (as shown in fig.17) again.
Rotate the spring bolt again around 180° (as shown in
fig.14) and lock in position (see adjustment sticker at the
device).
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Fig. 19
Fig. 20
GB