Advertisement
GEAX
s.r.l
to the top of the extension rod; in this position the rod has a step on the
guides
fig.6.3.1.3
The rotary starts to turn once again (joystick B to the left), pressing the
10.
P5 button to ensure floating.
Drilling of the borehole terminates when the rotary has reached its
11.
lowest position
Chapter 6
which discharges the weight of the rotary onto the tool.
(after having exploited the extension shaft as well)
OPERATING THE DRILLING RIG
fig.6.3.1.3
.
4
Advertisement
