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JT5 Operator’s <strong>Manual</strong> Conduct a Bore - 85<br />
Surface Drill Head<br />
Surface Drill Head<br />
Moving tools will injure or kill. Shut off drill string power when anyone can<br />
be struck by moving or thrown tools. Never use pipe wrenches on drill string.<br />
Turning shaft will kill you or crush arm or leg. Stay away.<br />
NOTICE:<br />
• Tracker operator and drill operator should maintain two-way communication.<br />
• Keep everyone clear of the exposed drill string.<br />
• No one should enter pit until clear communication is given by the drill operator that the drill unit is<br />
shut down. Do not enter pit until tracker control is turned off and green light on drill unit is lit.<br />
• Drill operator should be instructed to discontinue drill string rotation as soon as drill bit exits the<br />
bore. Use thrust only to extend drill string beyond exit hole.<br />
1. Guide drill head to target pit or up through surface. Make all bends gradual. See “Recommended Bend<br />
Limits” on page 56.<br />
2. Clean area around exit point.<br />
3. Turn fluid flow control to off position as soon as drill head emerges.<br />
4. Allow tracker operator to turn off tracker to disable drilling unit thrust/pullback and rotation hydraulics.<br />
Tracker operator waits for green light to enter pit and change tools.<br />
5. Clean drill head especially around threads.<br />
6. Disconnect EZ-Connect joint or use quick wrench to remove drill head. Keep threads clean. See<br />
“Quick Wrench” on page 115.<br />
CMW
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