Kohler CV1000 User Manual Page 43

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5.15
Section 5
Fuel System and Governor
5
Governor
Lever
Governor
Cross Shaft
Governed
Idle Spring
Linkage
Governor
Spring
Governor
General
The governor is designed to hold the engine speed
constant under changing load conditions. Most
ȱȱȱȱȱȱĚ¢ȱ
ȱǯȱȱȱȦĚ¢ȱ
mechanism of the mechanical governor is mounted
ȱȱȱȱȱȱěȱȱȱȱȱ
ĞǯȱȱȱȱȱȱDZ
Centrifugal force acting on the rotating governor
ȱ¢ȱȱȱĚ¢ȱȱȱ
outward as speed increases. Governor spring
tension moves them inward as speed decreases.
Figure 5-36. Governor Linkage (Air Cleaner
Removed for Clarity).
Ȋȱ ȱȱĚ¢ȱȱǰȱ¢ȱȱȱ
regulating pin to move outward.
The regulating pin contacts the tab on the cross
ĞȱȱȱĞȱȱǯ
ȱ Ȋȱ ȱȱȱȱȱĞȱȱȱȱ
ǯȱȱȱȱȱȱȱĞȱȱ
ĴȱȱȱĴȱȱȱȱȱ
ȱȱ¡ȱĴȱǯȱȱȱ
śȬřŜǯ
ȱ Ȋȱ ȱȱȱȱȱǰȱȱȱĴȱȱȱ
the “fastȄȱǰȱȱȱȱȱȱ
ȱȱȱĴȱȱǯȱȱȱ
engine is operating, the governor gear assembly
is rotating. The force applied by the regulating
ȱȱȱȱĞȱȱȱȱȱ
Ĵȱǯȱȱȱȱȱȱ
the force applied by the regulating pin balance
each other during operation, to maintain engine
speed.
When load is applied and the engine speed and
governor gear speed decreases, the governor
spring tension moves the governor arm to open
ȱĴȱȱǯȱȱȱȱȱ
into the engine, increasing the engine speed.
ȱȱȱȱȱȱĴǰȱȱ
governor spring tension and the force applied by
ȱȱȱȱȱěȱȱȱȱ
hold a steady engine speed.
Adjustments
DZȱ ȱȱȱȱȱȱĴǯȱ
ȱȱ£ȱȱȱȱ
personal injury.
General
ȱȱȱĴȱȱȱ¢ȱȱ
ȱȱȱĴȱǯȱȱȱȱȱȱ
constant, depending on the engine application.
Initial Adjustment Procedure
Make this adjustment whenever the governor arm is
ȱȱȱȱȱȱĞǯȱȱȱ
śȬřŜȱȱȱȱDZ
ȱ ŗǯȱ ȱȱȱĴȱȱȱȱȱ
ȱȱȱȱȱĴȱȱȱȱ
carburetor.
ȱ Řǯȱ ȱȱ¡ȱȱȱȱȱȱȱ
ȱȱĞǯ
3. Move the governor lever toward the carburetor
ȱȱȱȱȱȱǻȱȱĴǼȱȱȱ
in this position.
4. Insert a long thin rod or tool into the hole on the
ȱĞȱȱȱȱĞȱȱǻȱ
from the end) as far as it will turn, then torque
the hex nut to 7.3 N·m (65 in. lb.).
High Speed (RPM) Adjustment (Refer to Figure
5-37.)
ȱ ŗǯȱ ȱȱȱǰȱȱȱĴȱ
control to fast. Use a tachometer to check the
RPM speed.
ȱ Řǯȱ ȱȱȦȱȱȱȱǰȱ
or inward to increase the RPM speed. Check RPM
with a tachometer.
Page view 42
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