Conduct a Bore - 140 JT40/JT40 All Terrain Operator’s Manual
Surface Drill Head
Surface Drill Head
1. Guide drill head to target pit or up through surface. Make all bends gradual. See “Recommended Bend
Limits” on page 92.
2. Clean area around exit point.
3. Turn fluid flow control to off position as soon as drill head emerges.
4. Allow tracker operator to turn off tracker or use DrillLok
®
system to disable drilling unit thrust/pullback
and rotation hydraulics. Tracker operator waits at least 16 seconds for green light to enter pit and
change tools.
5. Clean drill head especially around threads.
6. Disconnect EZ-Connect joint or use quick wrench to remove drill head. Keep threads clean. See
“Hydratong Wrenches” on page 169.
Moving tools will kill or injure. Never use pipe wrenches
on drill string.
273-278
Turning shaft will kill you or crush arm or leg. Stay away.
To help avoid injury:
• Tracker operator and drill operator should maintain two-way communication.
• Keep everyone clear of the exposed drill string.
• No one should enter pit until clear communication is given by the drill operator that the drill unit is
shut down. Do not enter pit until green light DrillLok
®
system light on unit is lit. See “DrillLok®
System” on page 162.
• Drill operator should be instructed to discontinue drill string rotation as soon as drill bit exits the
bore. Use thrust only to extend drill string beyond exit hole.
To Next Page
Loading...
