Ditch Witch JT1220 - Manual (Page 102)

JT1220 Mach 1 Operator’s Manual
Conduct a Bore - 101
Assemble Drill String
CMW
Connect Drill Pipe
1. Start drilling unit engine.
2. Align transition sub (3) in front wrench.
3. Clamp tool in front wrench. See “Clamp Pipe” on page 98.
4. Load pipe (4).
• Make sure pipe box is positioned correctly.
• Close grippers.
• Lubricate upper pipe threads.
• Move pipe to spindle. Verify that lower threads were lubricated as pipe moved to spindle.
• Raise pipe in box.
5. Connect pipe.
• Move carriage forward until saver sub nears male pipe thread.
• Slowly rotate spindle clockwise. Carriage will move forward as threads screw together.
• Slowly move carriage forward until pipe end touches end of transition sub.
• To screw pipes together and fully torque joint, slowly rotate drill pipe until spindle stops turning.
• Open wrench.
• Open grippers.
• Retract shuttles fully.
• Lower pipe lifters.
6. Close guides.