D20x22 Series II Navigator HDD
Operation 50-41
Step 2:
Connect wash wand to drilling fluid pump quick coupler
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.
Step 3:
Turn water system on and flush water through wash wand until water is
clean and clear.
Step 4:
Shut off water system.
Step 5:
Point wash wand away from people and squeeze handle to release water
pressure remaining in wand.
Step 6:
Remove wash wand from drilling fluid pump quick coupler and store on
transport vehicle.
Step 7:
If freezing weather is expected, remove all water from drill unit or add RV-
type antifreeze. Refer to “Adding Antifreeze to Drilling Fluid System,”
Machine - Wash
NOTICE:
Machine controls and electrical/electronic devices are not rated to withstand high pressure water and
temperature power washers. Water intrusion will likely cause malfunction or damage to any devices hit directly
by the water spray. Keep pressure washer stream away from machine controls and electrical/electronic devices.
Compressed air can also push moisture through some connector and component seals. Do not point air nozzle
directly at seal areas.
Before loading onto transport vehicle, wash drill unit with clean water to remove accumulated polymers and
dirt.
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.
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