Benchmark BG Series User Manual page 9

Do not allow any moisture to come in contact with the generator.
Do not touch the spark plug while the engine is operating or shortly after
the engine has been shut down.
1.2 AC SAFETY
WARNING!
Before connecting the generator to an electrical device or power cord:
Make sure that everything is in proper working order. Faulty devices or
power cords can lead to an electrical shock.
Turn off the generator immediately if the device begins to operate
abnormally. Then disconnect the device and investigate the problem.
Make sure that the electrical rating of the device does not exceed that of
the generator. If the power level of the device is between the maximum
output power and the running power of the generator, the generator
should not be used for more than 30 minutes.
Connections for standby power to a building's electrical system must be
done by a qualified electrician and must comply with all applicable laws
and electrical codes. Improper connections may cause serious injuries to
electrical workers during a power outage, and when the utility power is
restored, the generator may explode or cause fires. The generator shall
be connected through transfer equipment that switches all conductors
other than the equipment grounding conductor. The frame of the
generator must be connected to an approved grounding electrode.
For power outages, permanently installed stationary generators are
better suited for providing backup power to the home. Even a properly
connected portable generator can become overloaded. This may result in
overheating or stressing the generator components, possibly leading to a
generator failure.
Electrical devices that require a grounded receptacle pin connection will
not function if the receptacle ground pin is not functional.
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BG SERIES