Section IX. MAINTENANCE OF FUEL SYSTEM

TM 5-4320-234-12

Section IX. MAINTENANCE OF FUEL SYSTEM

4-20. Description

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.

The carburetor

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.

Spark plug

6. Exhaust pipe

11.

Magneto

16.

Fuel strainer

Overspeed governor

7. Radiator hose

12.

Carburetor

17.

Fuel pump

Engine lifting eye

8. Fan guard

13.

Choke control cable

18.

Intake manifold

Exhaust manifold

9. Engine speed governor

14.

Emission control tube

19.

Air intake hose

Shielded spark plug cables

10. Governor-to-throttle rod

15.

Throttle control cable

Figure 4-7. Right side of engine, identifying components.

4-16