TM 5-3805-258-24-1E N G I N ES Y S T E M S O P E R A T I O NF U E L S Y S T EMWhen the governor moves toward FUEL OFF,If the governor movement is slow, the oil gives nospring seat (4) and piston (2) move to the left. Thisrestriction to the movement of the piston and springmovement pushes oil out of cylinder (1), throughseat. If the governor movement is fast in the FUELneedle valve (5) and into oil reservoir (7).OFF direction, the needle valve gives a restriction tothe oil and the piston and spring seat will moveslowly.AIR FUEL RATIO CONTROLAIR FUEL RATlO CONTROL(Engine Stopped)1. Inlet air chamber. 2. Diaphragm assembly. 3. Internal valve.4. Oil drain passage. 5. Oil inlet. 6. Stem. 7. Spring.6. Piston. 9. Oil paasage.10. Oil chamber. 11. Lever.AIR FUEL RATIO CONTROL(Increase in Inlet Air Pressure)1. Inlat air chamber. 2. Diaphragm assembly. 3. Internal valve. 4. Oil drain passage. 5. Oil inlet. 6. Stem. 7. Spring.6. Piston. 9. Oil pasaage. 10. Oil chamber. 11. Lever.3-10
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business