Ditch Witch JT20 - Manual (Page 137)

Systems and Equipment - 136
JT20 Operator’s Manual
Drill Pipe
CMW
®
Make Up and Break Out Joints Correctly
This consists of two steps:
• Make up and break out joints slowly. Do not ram pipes together during makeup or force them
apart during breakout. Carefully time rotation with carriage travel speed, and always connect and
disconnect joints slowly and deliberately. This will help prevent thread crossing, galling, and
shoulder swelling.
• Tighten joints fully. Once the joint is connected and the shoulder faces are touching, tighten to
full machine torque. Improperly tightened joints will damage the shoulder faces and threads, and
will cause joints to leak or break while drilling or backreaming.
Do not Overwork the Pipe
Never exceed the bend radius for your pipe. See “Recommended Bend Limits” on page 67. Do not
oversteer.
NOTICE: Bending pipe more sharply than recommended will damage pipe and cause failure.