GEAX
s.r.l.
Chapter 2
TRANSPORTING THE DRILLING RIG
1
0
Fig. 2.2.3.1
2.3 Loading, unloading and anchoring the rig on a semitrailer
2.3.1
Positioning the semitrailer
The trailer must be placed on level ground, firm enough to allow
using the loading ramps and performing the manoeuvres required to
align the rig to the ramps. The climb must be straight and in line with
the trailer.
Make sure there are no obstacl
es or overhead cables inside the drilling rig’s
manoeuvring space, paying special attention if the mast must be positioned
vertically
(fig.2.4.1.2)
.
2.3.2
Loading and unloading
When loading or unloading the rig on/from the trailer, the rig’s
configuration must be as shown in
fig. 2.3.2.1
with the tool detached
and the mast folded down. This configuration is similar to the
transport configuration, except that the boom is slightly raised to prevent the
rotary's bottom flange from scraping on the ground or on the deck (a 20-30
cm clearance is sufficient).
Figures 2.3.2.1-2-3-4-5-6
show the loading operation sequence.