D7x11 Series II Navigator Directional Drill Operation 50-17
If you strike an underground power line, it is possible to trip the power line circuit breaker, which will interrupt
electrical power to that line. Many circuit breakers automatically reset and will re-energize the line.
If the horn has sounded, and you have pressed the reset button, the horn will stop if the circuit breaker has not
yet reset automatically. Do not assume that power to the line has been permanently disconnected until you have
confirmed that the utility company has locked out power to that line.
Gas
Fiber Optic
Work Site Assessment
Examine work area for any obstructions, conditions, or situations which may impair machine operation or
create a safety hazard for the operator or other persons. Use information in this manual combined with your
own good judgment when identifying these hazards and implementing hazard avoidance measures.
DANGER: Gas explosion can kill. If you strike a gas line, shut off engine and evacuate area
immediately. Contact utility company and do not return until the utility company gives
permission to do so. Do not attempt to disengage drill tool from buried line.
WARNING: Laser light may damage eyes. Do not look into the end. Fiber optic cables carry
laser light which may damage your eyes. If you are not sure what kind of cable it is, do not
look into the end. Contact appropriate utility company for assistance.
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