GEAX
s.r.l.
Chapter 3
DRILLING RIG WORKSITE OPERATIONS
8
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When travelling over flat areas, use the configuration shown in
fig.3.1.1.1-2
; do not use the configuration shown in
fig. 3.1.1.8
except for
very short transfers (i.e., getting over an obstacle). This configuration
applies a heavy stress on the crawler's front drive wheels and on the
mast guides. Do not use this configuration when travelling downhill.
fig.3.1.1.8
In general, when the rig is moving, the tool should be held as low as possible
(as shown in the figures), but not so low as to risk scraping on uneven
ground. This might damage the rig structure or make the rig unstable.
Inspect the path of travel before shifting the rig, checking for narrow or low
passages, overhead cables or any other obstacles that might interfere with
the moving rig.
The speed of travel depends on the terrain's roughness and
gradients: slow down to minimum speed when approaching the
gradient limits described above, to avoid destabilizing the rig. The
angles of inclination shown in the figures must not be exceeded at any time,
not even for a few moments.
3.2 Setting up the drilling rig
3.2.1
Work area
The place of installation should be adequately wide and flat, so that
the crawler tracks have enough support to prevent dangerous
swaying during rig operations. The surface of the standing area
may also be non-horizontal. In this case the angle of inclination, measured
along the line of maximum slope, should be less than 5° (8% gradient).
If the rig is to be used in an indoor location, install a system for extracting the
exhaust fumes and discharging them outside.