DUROMAX XP10000EH Manual page 17

DC Operation
The DC terminals may ONLY be used for charging 12 volt automotive type batteries.
Connecting the battery cables:
1 Before connecting the battery charging cables to a battery that is installed in a vehicle,
disconnect the vehicle ground battery cable from the battery negative (－) terminal.
Batteries give off explosive gases; keep sparks, flames and cigarettes away. Provide adequate
ventilation when charging or using batteries.
Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands
after handling.
2 Connect the positive (＋) battery cable to the battery positive (＋) terminal.
3 Connect the negative (－) battery cable to the battery negative (－) terminal.
4 Connect the plug of the battery cable to the generator DC receptacle.
5 Start the generator.
Do not start the vehicle while the battery charging cable is connected and the generator is running.
The vehicle or the generator may be damaged. An overloaded DC circuit, excessive current draw by
the battery, or a wiring problem will trip the DC circuit protector. If this happens, wait a few minutes
before pushing in the circuit protector to resume operation.
Disconnecting the battery cables:
1 Stop the engine.
2 Disconnect the plug of the battery cable to the generator DC receptacle
3 Disconnect the other end of the negative (－) battery cable from the battery negative (－)
terminal.
4 Disconnect the other end of the positive (＋) battery cable from the battery positive (＋)
terminal.
5 Reconnect the vehicle ground battery cable to the battery negative (－) terminal.
High Altitude Operation
At high altitude, the standard carburetor air/fuel mixture will be too rich. Performance will decrease,
and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard
starting. Operation at an altitude that differs from that at which this engine was certified, for extended
periods of time, may increase emissions. High altitude performance can be improved by specific
modifications to the carburetor. If you always operate your generator at altitudes above 5,000 feet
(1,500 meters), have a dealer perform this carburetor modification. This engine, when operated at
high altitude with the carburetor modifications for high altitude use, will meet each emission standard
throughout its useful life. Even with carburetor modification, engine horsepower will decrease about
3.5% for each 1,000-foot (300-meter) increase in altitude. The effect of altitude on horsepower will be
greater than this if no carburetor modification is made.
When the carburetor has been modified for high altitude operation, the air/fuel mixture will be too
lean for low altitude use. Operation at altitudes below 5,000 feet (1,500 meters) with a modified
carburetor may cause the engine to overheat and result in serious engine damage.
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