D7x11 Series II Navigator Directional Drill Overview 30-1
Section 30: Overview
Remote Lockout Overview
IMPORTANT: The Remote Lockout system is not intended to replace good verbal radio communication. Radio
communication is essential to the Remote Lockout system process. Refer to the Preparation section, “Warning
Safety Signs and Operating Instructions,” page 40-2, for complete information.
REMOTE LOCKOUT SYSTEM INTENDED USE
The Remote Lockout system is a communication and control tool that enables a worker along the bore path or at
the exit site, to directly lock out drill rod rotation, thrust, and fluid flow. Lights, sound, and vibration indicate
various modes so the machine operator and remote user know that the Remote Lockout system is operating
properly and whether drilling functions are locked out.
NOTE: When in Transport mode, the machine will not respond to Remote Lockout system commands until
machine is returned to Drill mode.
Although the Remote Lockout system can stop thrust, rotation, and fluid flow while drilling, the purpose of the
system is to prevent these functions from being started in the first place.
IMPORTANT: Do not rely on the Remote Lockout system as an emergency stop. Even on successful Remote
Lockout attempts, it is very unlikely that disabling thrust and rotation could be done quickly enough to prevent
death or serious injury.
IMPORTANT: The Remote Lockout system will not shut down the power units on stand-alone drilling fluid
systems or air compressors. These external power units must be manually shut off.
Use the Remote Lockout system to lock out the machine before working on or near drill string. Examples
include:
• Before approaching the drill head.
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