Product Manual

16 Voltmaster Engine-Driven Generators
Operation: Before starting
3.1.5 Location
Avoid placing the generator in locations where it will be exposed to
high humidity, dust, high ambient temperature, or corrosive fumes.
Moisture can condense on electrical components, causing
corrosion and short circuits. Accumulation of dirt on components
will retain moisture, accelerating wear on moving parts.
Provide at least 2 feet (61cm) of space on all sides of generator, for
ventilation and servicing. Ensure that the ventilator openings are
not obstructed.
Place the generator on a flat, level surface and ensure that it will not
shift or slide during use. Do not use the generator at an angle of
more than 15 degrees from horizontal.
3.1.6 Alternative fuels
Model XAF generators
XAF alternative-fuel-powered generators feature a special vapor
fuel carburetor with a vacuum safety shutdown and an electric
solenoid fuel shutdown.
XAF generators are derated, because the liquid propane (LP) and
natural gas (NG) fuel reduces engine output slightly versus gasoline.
Safety
■ Only a qualified LP or NG installer should work with LP and NG fuel
lines, connections, and components. Installing the fuel line for an
XAF generator is not a do-it-yourself job.
■ Propane gas is heavier than air and may settle in low places. Avoid
cutting, welding, and any activity that might ignite low-lying gas
near fuel lines or fuel tanks.
Fuel regulator
The regulator on the generator is a secondary regulator. Incoming
fuel supplies require an external, primary fuel regulator with output
of 11 inches of water column pressure. Fuel pressure that is too high
or too low will adversely affect generator performance.
Do not adjust the generator’s fuel regulator, which is preset at the
factory. To adjust the fuel mixture, see “Fuel mixture for Model XAF
generators” on page 24.