Section IX. MAINTENANCE OF FUEL SYSTEM
b. The diaphragm-type, engine-driven fuel pump
a. The fuel tank (fig. 1-2) is mounted between the
(17, fig. 4-7) is operated by a lobe on the camshaft. It
is mounted on the side of the engine. Fuel is pumped
longitudinal members of the chassis frame at the fan
through a strainer (16) to the carburetor (12), which is
end of the engine. It incorporates a 3-way fuel source
mounted on the intake manifold.
selector valve (5, fig. 2-2) to permit the engine to use
provides a fuel-air mixture to the engine, and has
the fuel from the fuel tank or from an auxiliary source,
several adjustments for smooth engine operation.
depending upon the valve position. A fuel line connects
the 3-way valve with the fuel pump.
6. Exhaust pipe
7. Radiator hose
Engine lifting eye
8. Fan guard
Choke control cable
9. Engine speed governor
Emission control tube
Air intake hose
Shielded spark plug cables
10. Governor-to-throttle rod
Throttle control cable
Figure 4-7. Right side of engine, identifying components.