30-32 Overview D20x22 Series II Navigator HDD
Reamer - Connect with Hex Collar
Connection
Step 1: Ensure drilling machine has been
locked out.
Step 2: Ensure components are clean.
Step 3: Lubricate threaded end of reamer.
Step 4: When aligned with rod, manually
rotate reamer to begin threading
reamer into rod.
Step 5: Continue manually threading reamer
onto rod by hand until shoulders
touch. Then back off to align to the nearest hex flat (1).
Step 6: Slide hex collar over the connection, then install bolt. Torque to 35 ft-lb (47.5 Nm).
Reamer Carrier Wear Pads - Replace
Replace wear pads (1) when worn.
Step 1: Remove four bolts and worn pad.
Step 2: Install new pad. Install bolts; torque to 10 ft-lb (13.6 Nm).
Locator System
The ability to locate the drill head is paramount to the success of any bore. Failure to use correct
locating techniques can result in the drill head becoming lost, coming out in the wrong location, or
missing the intended target altogether. Refer to the Fundamentals of Horizontal Directional Drilling
User’s Guide for information on locator systems.
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