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Conduct a Bore - 128
JT40/JT40 All Terrain Operator’s Manual
Assemble Drill String
Connect Drill Pipe
4.
Start drilling unit engine.
5.
Align drill pipe in front wrench.
6.
Clamp tool joint in front wrench. See “Clamp Pipe” on page 124.
7.
Disconnect from pipe:
•
Rotate spindle counterclockwise until threads on pipe segments are disengaged from each other.
Carriage will move backward as pipe rotates counterclockwise.
•
Stop rotation and move carriage backward until it stops on the rear stop switch.
8.
Load pipe:
•
Ensure shuttle stop is positioned correctly.
•
Open grippers or make sure they are open.
•
Grippers open as pipe is lowered.
•
Close grippers around pipe.
•
Lubricate pipe threads at front wrench.
•
Move pipe to spindle.
•
Raise pipe lifters.
9.
Connect pipe:
•
Move carriage forward until spindle meets back end of pipe joint. Rotate spindle clockwise until pipe
begins to spin. Relax grippers slightly.
•
Move carriage forward until pipe joints meet at front wrench.
•
Rotate spindle clockwise. Carriage will move forward as pipe threads tighten.
•
Rotate clockwise until spindle stops turning, and joint is fully tightened.
•
Open grippers.
•
Retract shuttles fully.
•
Open front wrench.
Summary of Contents for JT40
Page 1: ...JT40 JT40 All Terrain HRC and LRC Issue 1 0 Original Instruction Operator s Manual 053 2966 ...
Page 79: ...Controls 78 JT40 JT40 All Terrain Operator s Manual Battery Disconnect ...
Page 113: ...Drive 112 JT40 JT40 All Terrain Operator s Manual Shut Down Unit ...
Page 119: ...Transport 118 JT40 JT40 All Terrain Operator s Manual Retrieve ...
Page 147: ...Conduct a Bore 146 JT40 JT40 All Terrain Operator s Manual Remove Pullback Device ...
Page 199: ...Complete the Job 198 JT40 JT40 All Terrain Operator s Manual Stow Tools ...
Page 241: ...Service 240 JT40 JT40 All Terrain Operator s Manual As Needed ...
Page 250: ......
Page 251: ......
Page 253: ...Service Record 252 JT40 JT40 All Terrain Operator s Manual Service Performed Date Hours ...