D20x22 Series II Navigator HDD
Operation 50-9
Setup
B
ORE
P
ATH
- W
ALK
Be sure to walk the bore path to double-check for signs of utility lines, potential causes of locator interference,
and general assessment. Look for the following visual signs that could indicate presence of utility lines:
•
Ditch lines or depressions where the ground has settled from previous excavation.
•
Buildings that have lights but no overhead wires; the power lines may be buried in the bore path.
•
Patch repairs in the street, which could indicate digging to bury or repair a utility line.
•
Poles with wires extending into the ground, which might power traffic-sensing loops or traffic lights.
•
Manholes, which can be used for utility line connections, not only for sewer connections.
•
Water and gas shutoff valves, likely indicators of utility lines in the area.
D
RILL
U
NIT
S
ETUP
Step 1:
Move drill unit to site and position it for drilling.
Step 2:
Completely lower rack.
Step 3:
Lower rear stabilizers until rack is at desired angle.
Step 4:
Inspect power vise jaws and grips. Replace worn or damaged components before drilling. Refer to
“Maintenance - As Required” section in the
Maintenance Manual
.
