Ditch Witch JT60AT - Manual (Page 146)

Systems and Equipment - 146
JT60/JT60 All Terrain Operator’s Manual
Drill Pipe
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 during makeup, and use
floating carriage to lessen stress on threads during breakout. Always connect and disconnect
joints slowly and deliberately. This will help prevent thread crossing, galling, and shoulder swelling.
• Torque joints fully. Once the joint is connected and the shoulder faces are touching, torque them
to full machine torque. Improperly torqued 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 “Plan Bore Path” on page 67. Do not oversteer.
NOTICE: Bending pipe more sharply than recommended will damage pipe and cause failure.