D20x22 Series II Navigator HDD Operation 50-9
Setup
BORE PATH - WALK
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.
DRILL UNIT SETUP
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.
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