Conduct a Bore - 74 JT5 Operator’s Manual
Assemble Drill String
CMW
®
Attach Transition Sub
Use either machine torque or quick wrench to
attach transition sub.
• Attach transition sub (6) directly to beacon
housing (1), or
• Attach transition sub (5) to EZ-Connect
adaptor (4).
Machine Torque
1. Apply tool joint compound to shoulders and
threads and thread transition sub onto saver
sub.
2. Align drill pipe flats of EZ-Connect box or
beacon housing with front wrench of drill
frame.
3. Start drilling unit engine.
4. Use machine power to slowly rotate spindle and transition sub onto EZ-Connect box or beacon
housing.
5. Tighten to full machine torque.
Quick Wrench
1. Lube joints with TJC.
2. Attach quick wrench to the joint in the join position and tighten joint. See “Quick Wrench” on page 107.
Connect Drill Pipe
1. Start drilling unit engine.
2. Align transition sub in front wrench.
3. Load pipe into wrench cradle.
4. Lubricate shoulders and threads.
5. Remove hands from pipe area.
6. Move carriage forward until saver sub nears male pipe thread.
7. Slowly rotate spindle clockwise. Carriage will move forward as threads screw together.
8. Slowly move carriage forward until pipe end touches end of transition sub.
9. To thread pipes together and fully torque joint, slowly rotate drill pipe until spindle stops turning.
10. Open front wrench and move carriage back.
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