50-20 Operation D7x11 Series II Navigator Directional Drill
Drill Fluid - Adjust
If there is rust or debris inside the drill rod, slowly rotate rod and flush it with
drilling fluid before connecting it to drill head.
Step 1: Push top of Drilling Fluid ON/OFF Switch (1) to turn drilling fluid
system ON.
NOTE: Ensure drill string is filled with drilling fluid and at the necessary fluid
pressure before rotating, thrusting, or pulling back. Failure to do so may plug the
drill head or reamer nozzles.
Step 2: Use Flow Control Knob (2) to increase or decrease drilling fluid flow. Use
Drilling Fluid Flow Meter (3) to monitor desired flow.
Step 3: View Drilling Fluid Pressure Gauge (4) to read drilling fluid pressure.
IMPORTANT: If the drill becomes plugged, either dig down to the drill head, back
out the drill rod and the drill head, or attempt to use fluid pressure to force out the plug. Refer to “Plugged Drill
Rod,” page 50-23, for instructions on unplugging a nozzle.
Drill Rod - Lubricate
Refer to Specifications section “Lubricants” in the Maintenance Manual for specifications.
Lubricate male and female rod threads and shoulders. Apply lubricant to clean, dry threads.
IMPORTANT: Keep electrically insulated gloves from coming in contact with lubricant. Petroleum-based
products will chemically damage gloves.
NOTE: Do not thin lubricants to make them easier to apply. Thinning reduces the amount of available metal
filler and makes lubricant ineffective.
3
1
4
2
To Next Page
Loading...
Need help?
General
