REV 41537-20120730
12
41537
ENGLISH
Do Not Overload Generator
Capacity
Follow these simple steps to calculate the running and
starting watts necessary for your purposes .
1 . Select the electrical devices you plan on running at
the same time .
2 . Total the running watts of these items . This is
the amount of power you need to keep your items
running .
3 . Identify the highest starting wattage of all devices
identified in step 1 . Add this number to the number
calculated in step 2 . Surge wattage is the extra
burst of power needed to start some electric driven
equipment . Following the steps listed under “Power
Management” will guarantee that only one device will
be starting at a time .
Power Management
Use the following formula to convert voltage and
amperage to watts:
Volts x Amps = Watts
To prolong the life of your generator and attached
devices, follow these steps to add electrical load:
1 . Start the generator with no electrical load attached
2 . Allow the engine to run for several minutes to stabilize .
3 . Plug in and turn on the first item . It is best to attach
the item with the largest load first .
4 . Allow the engine to stabilize .
5 . Plug in and turn on the next item .
6 . Allow the engine to stabilize .
7 . Repeat steps 5-6 for each additional item .
Never exceed the specified capacity when adding
loads to the generator .
NOTE
OPERATION
Operation using the alternative main jet at
elevations lower than the recommended minimum
altitude can damage the engine . For operation at
lower elevations, the standard main jet must be
used . Operating the engine with the wrong engine
configuration at a given altitude may increase
its emissions and decrease fuel efficiency and
performance .
WARNING
Part Number
Altitude
Standard main jet
ST190FD-2-1131000-17
6000 Feet
(1800 Meters)
Altitude main jet
490 .131017 .01
Operation at High Altitude
The density of air at high altitude is lower than at sea
level . Engine power is reduced as the air mass and air-
fuel ratio decrease . Engine power and generator output
will be reduced approximately 3½% for every 1000
feet of elevation above sea level . This is a natural trend
and cannot be changed by adjusting the engine . At high
altitudes increased exhaust emissions can also result
due to the increased enrichment of the air fuel ratio .
Other high altitude issues can include hard starting,
increased fuel consumption and spark plug fouling .
To alleviate high altitude issues other than the natural
power loss, Champion Power Equipment can provide a
high altitude carburetor main jet . The alternative main
jet and installation instructions can be obtained by
contacting Customer Support . Installation instructions
are also available in the Technical Bulletin area of the
Champion Power Equipment internet site .
The part number and recommended minimum altitude
for the application of the high altitude carburetor main
jet is listed in the table below .
In order to select the correct high altitude main jet
it is necessary to identify the carburetor model . For
this purpose, a code is stamped on the side of the
carburetor . Select the correct main jet part number
corresponding to the carburetor code found on your
particular carburetor .
