TP-6079 3/00 7Section 3 Fuel System
3.3.3 Flooding
Flooding occurs from a float level set too high, an
inoperative bi-metallic strip, an inoperative choke
pull-off, a sticking choke plate or float, or a fuel inlet
needle held off its seat either by improper seating or dirt
particles. A punctured or leaking float admitting fuel
becomes gas-logged causing a heavy float, high fuel
level, and flooding.
3.3.4 Hunting
A low fuel level because of an improperly adjusted float,
a clogged main jet, restricted main jet passages, or an
improperly sized main jet for the application can cause
hunting. To remedy this condition, clean, adjust, or
replace inoperative components.
An incorrect throttle linkage adjustment, a binding
throttle linkage, a sticking throttle shaft, or a loose
throttle shaft in the throttle body or bore can cause
inconsistent idle speed.
3.3.5 Leaking Carburetor
Loose fuel connections, a cracked carburetor body, a
sticking fuel inlet needle, or an inoperative float can
cause a leaking carburetor. Adjust, repair, or replace the
affected components.
3.4 Governor
The factory adjusts the governor and further
adjustments should not be necessary.
Note: Never tamper with the governor settings to
increase the generator output. Overspeeding
can cause equipment parts to exceed design
limitations, resulting in component failure.
3.5 60 and 50 Hz Conversions
To convert the generator set to 50 or 60 Hz follow the
procedure below.
Governor 50 or 60 Hz Conversion Procedure:
1. Adjust the generator frequency by adjusting the
generator speed adjusting screw. Using a
frequency meter set the no load speed at 52.5 Hz
for 50 Hz operation or 63 Hz for 60 Hz operation.
2. Adjust the voltage regulator volt/Hz roll-off point.
Refer to Section 5.2.2.
598643
1. Generator speed adjusting screw
1
Figure 3-3 Governor 60 Hz to 50 Hz Conversion
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