and other damage. Repair or replace as necessary.
(2) Inspect catches for proper orientation. Repair or replace as necessary.
Section VI. ENGINE FUEL SYSTEM
71. Description
The fuel system consists of a shutoff valve, fuel pump, fuel pump adapter and hand primer, carburetor
governor, air cleaner and all the necessary fuel lines and connections, and controls. Fuel is drawn from the
tank through the carrier fuel strainer (1, fig. 10) which incorporates a shutoff valve. The strainer and sediment
bowl removes and collects all foreign matter and solids from the fuel. From this strainer the fuel passes through
the fuel pump into the carburetor. The air cleaner removes dust, water, and other foreign matter from the air
and passes clean air to the carburetor where it is mixed and sprayed into the cylinders with the fuel for proper
combustion. A governor controls the amount of fuel discharged from the carburetor.
71.1 Description (Model W15A4112)
Fuel is drawn from the engine fuel tank (1, fig. 10.1) through a fuel strainer (16, fig. 10.1) which incorporates a
fuel shutoff valve.
Warning: If NBC exposure is suspected, all air filter media should be handled by personnel wearing
protective equipment. Consult your unit NBC Officer or NBC NCO for appropriate handling or disposal
instructions.
72. Air Cleaner
a. Removal
(1) Remove the hose from the air cleaner.
(2) Remove the hex nuts and lockwashers from the four studs securing the air cleaner.
b. Cleaning and Inspection.
(1) Wash the air cleaner in an approved cleaning solvent and dry thoroughly.
(2) Wash the oil cup with an approved cleaning solvent and dry thoroughly.
(3) Inspect the air cleaner body and cup for cracks and breaks. Replace as required if defective.
(4) Wipe the air cleaner hose and inspect the hose for cracks or deterioration. Check all hardware for
stripped or damaged threads and replace defective parts as required.
Figure 24. Governor lever chart.
Change 7
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