JLG 2505H, Operation Manual

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Section 1- General Safety Practices
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• The minimum approach distance may be reduced if insulating barriers are installed to
prevent contact, and the barriers are rated for the voltage of the line being guarded.
These barriers shall not be part of (or attached to) the machine. The minimum
approach distance shall be reduced to a distance within the designed working
dimensions of the insulating barrier. This determination shall be made by a qualified
person in accordance with the employer, local, or governmental requirements for
work practices near energized equipment.
DANGER
Do not maneuver machine or personnel inside prohibited zone (MAD). Assume all
electrical parts and wiring are energized unless known otherwise.