50-40 Operation
D20x22 Series II Navigator HDD
Drill Rods - Clean and Store
•
Clean and lubricate drill rod threads to prevent rusting. Refer to
Specifications
section, “Lubricants,” in the
Maintenance Manual
.
•
Protect drill rod from damage.
•
Store drill rods in the rod box on drill unit.
•
Install keeper pins to prevent drill rods from falling out during transport.
Flushing Bentonite/Polymers from Drilling Fluid System
If bentonite or polymers were added to drilling fluid, flush system with fresh water before stowing equipment.
To drain, clean, and add fresh water:
Step 1:
Turn water system on and flush water through drill unit hoses and drive plate. Shut off water system.
WARNING:
High pressure water can penetrate skin. Serious injury possible. Fluid
injected under the skin must be removed immediately by a surgeon familiar with this
type of injury.
Keep nozzles away from body.
