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 19.
A valve opened less than 1/2 of a turn produces
a slow response to load changes. A valve opened more
than 3/4 of a turn produces excessive speed response to
load change. If the engine does not stabilize between
1/2 to 3/4 turn open, raise the pointer two divisions and
repeat steps 12 through 19.
20.
When the engine speed stabilizes, install the
base plug.
11.
Manually move the governor linkage to disturb
the engine speed.
If the engine speed stabilizes, and the needle
valve is only 1/2 to 3/4 turn open, the governor is
properly adjusted. Install the base plug.
If more than a 3/4 turn is required to stop engine
surging, proceed with the following steps.
12.
Raise the pointer two divisions on the pointer
scale.
13.
Turn the needle valve counterclockwise three or
more turns.
14.
Allow the engine to surge approximately 30
seconds.
15.
Gradually turn the needle valve clockwise until
surging just stops.
16.
Note the portion of a turn required to close the
needle valve.
17.
Open the valve exactly to the same position
surging stopped.
18.
Manually move the governor linkage to disturb
the engine speed. The engine speed should stabilize
with the needle valve opened 1/2 to 3/4 turn.
621
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