Ditch Witch JT20 - Manual (Page 98)

JT20 Operator’s Manual
Conduct a Bore - 97
Add Pipe
CMW
®
5. Connect pipe to saver sub:
6. Connect new pipe to drill string:
7. Press and hold quick fill fluid pump switch until pipe fills and fluid pressure begins to rise.
8. Rotate spindle.
9. Slowly move carriage forward. Adjust rotation speed control according to bit size and soil conditions.
10. Engage and set cruise control as desired. See “Cruise Control” on page 142.
11. Monitor gauges.
12. Locate drill head with tracker at least every half-length of pipe.
Manual Pipeloader Controls Automated Pipeloader Control
IMPORTANT: Always rotate clockwise unless
breaking pipe joint. Rotating counterclockwise
will separate joints.
• Move carriage forward until saver sub
meets pipe.
• Rotate spindle until threads begin to
tighten. Carriage will continue to advance.
• Relax grippers.
IMPORTANT: Always rotate clockwise unless
breaking pipe joint. Rotating counterclockwise
will separate joints.
• Move carriage forward until saver sub
meets pipe.
• Rotate spindle until threads begin to
tighten. Carriage will continue to advance.
• Press RESUME. Green control cycle light
will come on. Grippers will relax and then
green control cycle light will flash
Manual Pipeloader Controls Automated Pipeloader Control
• Stop rotating and slowly move pipe
forward until it contacts pipe in front
wrench.
• To fully torque joint, slowly rotate pipe until
spindle stops turning.
• Open wrench.
• Open grippers fully.
• Retract shuttles against shuttle stop.
• Lower pipe lifters.
• Stop rotating and slowly move pipe
forward until it contacts pipe in front
wrench.
• Press RESUME. Green control cycle light
will come on, grippers will open, shuttles
will retract, pipe lifters will lower, and then
green control cycle light will flash.
• While previous sequence is progressing,
thread pipes together until spindle stops
turning, then fully torque both joints by
moving rotation control briefly to left limit.