D20x22 Series II Navigator HDD
Overview 30-39
Step 9:
When rod begins to rotate, move rod transfer
arm
(8)
back under rod box.
NOTICE:
Failure to fully move rod transfer arm back
under rod box will damage rod transfer arm.
Step 10:
With minimum thrust, full rotation, and with
front vise clamped on downhole rod, thread
upper rod into downhole rod and tighten to
2000–2300 psi (138–159 bar). Refer to “Rod
Joints - Tighten,”
Step 11:
Unclamp and drill rod into ground.
Step 12:
Repeat Steps 4–11 to drill in additional rod.
8
(Step 9)
