Ditch Witch JT30AT - Manual (Page 107)

Conduct a Bore - 107
JT30 /JT30 All Terrain Operator’s Manual
Assemble Drill String
CMW
Prepare Rockmaster Tool
1. Select bit. Ensure that bit has suitable number of nozzles for jobsite conditions. See page 146.
2. Install bit onto Rockmaster tool using the wrench set and scribe line technique. See page 151 for
correct procedures.
3. Ensure that Rockmaster tool is properly lubricated (from last usage). If using Rockmaster tool for the
first time, lubricate the tool:
• Remove plug from tool.
• Install zerk.
• Rotate the tool by hand while pumping tool with MPG until grease comes out at the seal.
4. Install beacon, following beacon instructions for:
• battery replacement
• beacon positioning
5. Install beacon housing lid.
6. Follow beacon instructions to check beacon operation.
7. Follow tracker instructions to calibrate beacon.
Attach Lead Pipe
1. Start drilling unit engine.
2. Apply TJC (tool joint compound) to shoulders and threads, and thread lead pipe onto saver sub.
3. Clamp rear wrench.
4. Use machine power to connect lead pipe to saver sub. Tighten to full machine torque.
Attach Downhole Tool
See “Quick Wrench” on page 151.
Machine Torque
1. Remove blocks from pipe guides.
2. Pull tool into lower wrench.
3. Close wrench.
4. Use machine torque to tighten joint fully.
Quick Wrenches
1. Lube joints with TJC (tool joint compound).
2. Attach quick wrenches to the joint in the join position and tighten joint.