Connect drill pipe – Ditch Witch JT100AT User Manual
Page 120
JT100/JT100 All Terrain Operator’s Manual
Conduct a Bore - 119
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 116.
4.
Load pipe (4).
•
Make sure pipe box is positioned correctly.
•
Close grippers.
•
Lubricate threads on transition sub.
•
Move pipe 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.