Firman T09371 - Operation at High Altitude; Operation at High Ambient conditions

OPERATION
NOTICE Do not mix oil in gasoline or mod i fy engine to run on alternate fuels not described in this
manual. Use of unapproved fuels could damage engine and will not be covered under warranty.
1. Clean area around fuel fill cap, remove cap.
2. Slowly add unleaded fuel to fuel tank. Be careful not to fill above the RED fuel level indicator.
This allows adequate space for fuel expansion.
3. Install fuel cap and let any spilled fuel evaporate before starting engine.
Operation at High Altitude
At altitudes over 5,000 feet(1524 meters), a minimum 85 octane gasoline is acceptable .
Engine power and generator output will be reduced appro x imately 3.5¾ for every 1000 feet (305 m)
of elevation above sea level. High altitude may cause hard starting, increased fuel consumption
and sparkplug fouling. To operate at high altitudes FIRMAN can provide a high altitude carburetor
main jet. The alternative main jet and installation instructions can be obtained by contacting
Customer Support.
459cc
Altitude
Altitude main jet 1 393717004 3000 - 6000 Feet
Altitude main jet 2
393717005
6000-S000Fee
NOTICE Operation using an alternative main jet at elevations lower than the r ecommended
minimum altitude can damage the engine . For ope r ation at lower elevations, the standard main
je t supplied mu st be used . Operating t he engine with t he wrong main jet may increa se exhaus t
emissions, fuel consumption and reduce performance.
Operation at High Ambient conditions
Your Firman Power Equipment product is designed and rat ed for continuous operation at ambient
tempera t ures up to 104°F (40 °C). The generator may be operated at tempera t ures ranging from
5°F(-15°C) to 122° F(50 °C) for shor t per i ods. If the generator is exposed to t emperatures outside
this range during storage, the generator should be brought back within this range before
operation. When opera t ed above 77 ° F(25 °C) there may be a decrease in power.
Maximum wattage and cu r rent are subject to and limited by such facto rs as amb i ent temperature,
alt i tude , engine conditions etc.
Eng li sh 14 Customer Serv i ce : 1-844-FIRMAN 1