Add pipe – Ditch Witch JT1220 User Manual
Page 105
Conduct a Bore - 104
JT1220 Mach 1 Operator’s Manual
Add Pipe
CMW
Add Pipe
1.
Press top of drilling unit throttle switch until engine is at full throttle.
2.
3.
Break joint at saver sub.
4.
Load pipe.
IMPORTANT: If gripper switch is not in the grip position when using optional pipeloader automation,
grippers will open when automation is stopped and gripped pipe could be dropped. To return a dropped
pipe to the drill string, see “Correct Dropped Pipe” on page 135.
Manual Pipeloader Controls
Automated Pipeloader Control
•
Clamp pipe joint. See “Clamp Pipe” on
page 98.
•
Locate drill head.
•
Engage front wrench until pipe is clamped
and pressure develops.
•
Slowly rotate spindle counterclockwise.
Carriage will move back automatically as
threads unscrew.
•
After threads are fully unscrewed, stop
rotation and move carriage to back of
frame.
•
Clamp pipe joint. See “Clamp Pipe” on
page 98.
•
Locate drill head.
•
Engage front wrench until pipe is clamped
and pressure develops.
•
Slowly rotate spindle counterclockwise.
Carriage will move back automatically as
threads unscrew.
•
After threads are fully unscrewed, stop
rotation and move carriage to back of
frame.
•
While carriage is moving, green control
cycle light will come on. Grippers will grip,
pipe will be lubed, and then green control
cycle light will flash.
Manual Pipeloader Controls
Automated Pipeloader Control
•
Make sure lift arms are completely
lowered.
•
Close grippers.
•
Lube upper pipe threads.
•
Move pipe to spindle and lube lower
threads.
•
Raise pipe in box.
•
When carriage is moved to back of drill
frame, press resume switch. Green control
cycle light will come on.
•
Pipe will be moved to spindle, front
threads will be lubed, pipe in box will be
lifted, and then green control cycle light
will flash.