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TRUCK GROUP SERVICE MANUAL
TM 5-4210-230-14&P-1
GENERAL
Figure 21 Governor Operation Below Governed Speed
Figure 22 Governor Operation at Governed Speed
1. Fresh Air Passage
7. Diaphragm
2. Atmospheric Air Filter (Some Carburetors)
8. Vacuum Passage
3. Governor Control Valve Open (Permitting Flow of
9. Throttle Plate
Fresh Air)
10. Governor Control Valve Closed (Centrifugal Force
4. Plug
Closes Valve and Stops Flow of Air)
5. Distributor Housing
11. Increased Vacuum in Diaphragm Chamber Over-
6. Flow of Fresh Air (Weakens Vacuum in Diaphragm
comes Governor Spring Tension and Partially
Chamber and Governor Spring Tends to Open
Closes Throttle Plates
Throttle Plates)
CGES-125-T Page 14
PRINTED IN UNITED STATES OF AMERICA
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