Kohler CV11-16, Руководство по обслуживанию

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5.15
Section 5
Fuel System and Governor
5
When the engine is at rest, and the throttle is in the
‘‘fast’’ position, the tension of the governor spring
holds the throttle plate open. When the engine is
operating (the governor gear assembly is rotating), the
force applied by the regulating pin against the cross
shaft tends to close the throttle plate. The governor
spring tension and the force applied by the regulating
pin are in ‘‘equilibrium‘‘ during operation, holding the
engine speed nearly constant.
When load is applied and the engine speed (and
governor gear speed) decreases, the governor spring
tension moves the governor arm to open the throttle
plate wider. This allows more fuel into the engine;
increasing engine speed. This action takes place very
rapidly, so a reduction in speed is hardly noticed. As
the speed reaches the governed setting, the governor
spring tension and the force applied by the regulating
pin will again be in equilibrium. This maintains the
engine speed at a relatively constant level.
The governed speed setting is determined by the
position of the throttle control. It can be variable or
constant, depending on the application.
Initial Adjustment
Make this initial adjustment whenever the governor
arm is loosened or removed from the cross shaft. To
ensure proper setting, make sure the throttle linkage
is connected to the governor arm and the throttle lever
on the carburetor. See Figure 5-18.
1. With the governor lever loose on the cross shaft,
pull the lever towards the carburetor (wide open
throttle).
2. Grasp the cross shaft with a pliers, or insert a nail
into the hole in the end of the cross shaft. Rotate
the shaft
counterclockwise as far as it will turn,
then tighten hex. nut securely.
3. Torque the hex. nut to 9.9 N·m (88 in. lb.) .
Unitized Throttle and Choke Control
Some engines are equipped with a ‘‘unitized’’ throttle
and choke control bracket assembly. This assembly
controls the choke and engine speed with a single
lever.
Throttle Cable Adjustment
1. Loosen the throttle control cable clamp. See
Figure 5-19.
Figure 5-18. Initial Governor Adjustment.
NOTE: Air cleaner removed to show linkage.
Adjustment should be made with air cleaner
base installed.
Figure 5-19. Speed Control Bracket Assembly.
2. Place the throttle control lever of the equipment
into the “fast” or high idle position.
NOTE: The choke is placed “on” by moving the
throttle control slightly past the “fast”
position. If the throttle control does not
have a designated choke “on” position,
be sure to leave suffi cient throttle control
travel past the “fast” position. This will
enable the choke to be placed “on”. See
Figure 5-20.
Cross Shaft Hex. Nut
Governor Lever
Throttle Control Cable
Clamp
Sight
Hole
Choke Adjusting
Screw
Alignment Hole s
Throttle
Lever
Speed
Control
Bracket