D7x11 Series II Navigator Directional Drill Overview 30-13
LOCKOUT PROCEDURE - WITHOUT REMOTE LOCKOUT SYSTEM
It is essential that the machine is locked out before entering an exit pit, changing tools, repairing drill rod,
manually adding or removing drill rod, or performing any other work on the drill string or tools.
Step 1: Shut off machine and remove key.
Step 2: Bring key to the location where work will be performed on drill string or cutting tools. The key must
remain at this location until start-up is permitted.
Resuming Operation after Lockout
Step 1: Verify that drill string and cutting tools are ready for operation.
Step 2: Confirm everyone has evacuated the exit pit and is away from drill string and cutting tools, and that
no wrenches, tongs, or breakout devices are attached to drill string or cutting tools.
Step 3: Warn everyone who may be exposed to the drill string or cutting tools that operation will resume.
Step 4: Refer to and follow instructions in the the Preparation section, “Warning Safety Signs and Operating
Instructions,” page 40-2, before start-up.
DANGER: Rotating drill string can kill. Unexpected start-up possible.
Lock out before working on drill string.
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