30-16 Overview D7x11 Series II Navigator Directional Drill
DRILL TOOL ASSEMBLIES
Direct Coupled Mini Drill and Pullback Head
(End Load Sonde)
IMPORTANT: The direct coupled Mini Drill Head is restricted for
use in drilling applications where the service line will be pulled
back with the Mini Drill Head still attached to the drill string.
Do not use the Mini Drill Head if drill head removal is necessary
before pullback. The direct coupled Mini Drill Head must be
removed only with the drill rack power vise.
Step 1: Following instructions that come with probe, install
battery in DigiTrak Mini Miter probe (3). Check that probe is functioning properly.
Step 2: Place spring (7) in sonde housing (2).
Step 3: Install probe (3). Turn probe so slot on end lines up with roll pin (4) in the drill bit.
Step 4: Attach drill bit to sonde housing using pin (6). Secure pin in place with setscrew (5).
Step 5: Lubricate threads of sonde housing (2). Refer to Maintenance Manual, “Lubricants Section.” Screw drill
head onto drill rod hand-tight.
Step 6: Slide drill rod with drill head into Power Vise.
Step 7: With drill head clamped, rotate drill rod drive plate until threads are fully engaged and tight.
Step 8: Drill the hole, adding drill rod to the drill string until bore is complete.
Step 9: Attach the service being installed to the hole in drill bit, and pull the service back through the hole.
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