Ditch Witch JT100AT - Manual (Page 121)

Conduct a Bore - 120
JT100/JT100 All Terrain Operator’s Manual
Drill First Pipe
CMW
©
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 94.
4. Slowly move carriage forward. Drill in downhole tools and 1/3 of first pipe before steering.
5. Monitor gauges.
AT 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.