Operation, Warning, Do not overload generator – Champion Power Equipment 75537i User Manual
Page 18: Overload operation, Operation at high altitude
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REV 75537i-20140703
ENGLISH
75537i
OPERATION
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
Always turn the battery switch to the “OFF”
position when unit is not in use, this will stop the
battery from being drained. Follow the maintenance
and storage instructions for the generator and
battery when the unit will not be used for a period
of 2 weeks or more.
NOTE
Overload Operation
The overload indicator light will turn on when the rated
load is exceeded. When the maximum load is reached,
the LED will blink and cut power to the receptacles. To
recover the power, shut down the engine, wait until the
light turns off and restart the generator.
If the engine will not be used for a period of two (2)
weeks or longer, please see the storage section for proper
engine and fuel storage.
NOTE
Stopping the Engine Cont’d.
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.
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
Carburetor
Code
Main Jet
Part Number
Altitude
P20-2-H
Standard
83.131017.01.H
3500 Feet
(1067 Meters)
Altitude
83.131017.01.01.H
P20-2-R
Standard
83.131017.01.R
Altitude
83.131017.01.01.R