Benchmark BG4500i, Manual

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3
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 shall 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.
This unit is floating neutral. The generator (stator winding) is isolated
from the frame and from the AC receptacle ground pin.
Electrical devices that require a grounded receptacle pin connection will
not function if the receptacle ground pin is not functional.
1.3 MAINTENANCE SAFETY
WARNING!
After any maintenance is performed, wash immediately using soap and
clean water because repeated exposure to lubricant may cause skin
irritation.
Do not clean the filter element with flammable liquids like gasoline
because an explosion may occur.
Allow the generator set to cool down and turn off the engine before
performing any maintenance. Failure to do so can cause severe
personal injury or death.
Always wear safety glasses when cleaning the generator set with air.
Do not clean the generator set with a pressure washer because it can
damage the generator set.
When working with batteries, ventilate the area, use safety glasses, do
not smoke. Always disconnect the negative first and reconnect it last.
Use rubber gloves when coming into contact with engine oil.
Always stop the generator set before removing the oil filler cap.
Only qualified maintenance personnel with knowledge of fuels,
electricity, and machinery hazards should perform maintenance
procedures.
BG4500i