Drill first pipe, Jt mode/at dirt mode, At rock mode – Ditch Witch JT60AT User Manual
Page 102: Jt60/jt60 all terrain operator’s manual
Conduct a Bore - 102
JT60/JT60 All Terrain Operator’s Manual
Drill First Pipe
Drill First Pipe
JT Mode/AT Dirt Mode
1.
Turn on drilling fluid.
2.
Visually check for drilling fluid flow.
3.
Turn drill bit to starting position. See “Prepare Entry Point” on page 76.
4.
Slowly move carriage forward. Drill in 13’ (4 m) before steering.
5.
Monitor gauges.
AT Rock Mode
1.
Turn on drilling fluid.
2.
Visually check for drilling fluid flow.
3.
Choose clock position and set spindle brake.
4.
Rotate inner spindle clockwise.
5.
Slowly move carriage forward. Drill first pipe as straight as possible.
6.
Monitor gauges.
•
If inner rotation pressure approaches 1600 psi (110 bar), slow carriage travel.
•
If inner rotation stalls, stop carriage thrust. If inner rotation does not resume, pull pipe back.
Turning shaft can kill you or crush arm or leg. Stay away.
To help avoid injury:
•
Keep everyone at least 10’ (3 m) away from turning drill string.
•
Push rod or pipe slowly. Forcing can bend string. Do not use bent rod or pipe.
Jobsite hazards could cause death or serious injury. Use
correct equipment and work methods. Use and maintain proper safety
equipment.