D20x22 Series II Navigator HDD Operation 50-39
After Each Bore
Power Vises - Clean
Fluid injected under the skin must be removed immediately by a surgeon familiar with this type of injury.
Flush power vise assemblies with clean water to remove accumulated polymers or dirt. Refer to “Flushing
Bentonite/Polymers from Drilling Fluid System,” page 50-40. The service life of the power vise is dependent on
correct operating techniques and cleanliness of the mechanism.
Inspect vise jaws and grips and replace worn or damaged components before the next bore. Refer to
“Maintenance - As Required” section in the Maintenance Manual.
WARNING: High pressure water can penetrate skin. Serious injury is possible.
Keep nozzles away from body.
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