User's Manual

FIELD EQUIPMENT
NUSEIS
Geophysical Technology Inc Field Equipment Page | 54
Retrieval Tools
Surface Retrieval Tool
The Retrieval Tool is used to safely and effectively remove an NRU from the ground,
Due to the firmness of the EarthGrip plant, most NRU cannot be removed by hand. The Retrieval
Tool does this job.
Figure 40
The claw grips of the tool are custom shaped to fit onto the NRU between the top hex clamp
and the bottom clamp of the NRU, or underneath the bottom clamp, whichever is easier to
reach.
Figure 41
Once the retrieval tool is lodged in the groove of the NRU, the NRU can now be levered out of
the ground.