Lesson 3/Learning Event 2
Lubricate valves No. 1, 2, 3, 4, and tank-drain valve
Maintenance of the Fuel Tank (Figure 9 on Page 38).
Maintenance of the fuel
tank can be performed by using the following steps.
Inspect the fuel tank interior in daylight.
If the fuel tank
must be inspected at night, use a vapor-resistant light.
Clean the external surfaces of the fuel tank with dry-cleaning
solvent (SD). Remove the fuel-tank cap and lift out the filler neck with
Remove any residual matter caught in the meshed screen.
Replace the fuel-tank cap and lock it in place. Tighten the finger nut to
shut off the fuel line. Loosen the thumbscrew, swing the bail to one side,
and remove the sediment bowl.
Remove the deposits from the sediment bowl
and the filter. Replace the gasket. Set the sediment bowl and filter in
the bail and tighten the thumbscrew. Loosen the finger nut. Make certain
that the sediment bowl does not leak.
Inspect the fuel tank for leaks, broken welds, or other damage.
See that the straps that support the fuel tank are fastened through the
frame and tightened by nuts. See that the fuel shut-off valve and the fuel
hoses do not leak.
electrical leads are fastened at their respective terminals on top of the
If the fuel tank, cap, pad, hoses, or shut-off valve must be
repaired or replaced, notify organizational maintenance personnel.
be performed by using the following steps.
Step 1. See
that the engine is fastened securely to the engine mounts
that the two mufflers are installed and that the exhaust pipe extensions
have been installed. Check for burned out fuzes. See that the tachometer
cable and the electrical wires and cables are installed. See that the fuel
line is installed on the carburetor, is tight, and does not leak.
perform this check, you must remove the top shroud. Check that the battery
ground strap is fastened to the flywheel housing and the battery positive
cable is connected to the starter solenoid.
Step 2. See
that the engine is lubricated. See
that the engine crankcase
is filled with 4 1/2 quarts of oil, by pulling the oil-gage rod to check
that the crankcase oil level is satisfactory. If the oil level is below the
LOW mark add oil before operating the engine. Do NOT fill above the FULL