c. Reinstall the drain plug and fill the tank (42 gallons) with a good grade of gasoline.
d. Make certain that the air vent hole in the tank fillercap is open. If necessary, clean out the vent hole with a short
length of wire.
e. Examine the exterior of the tank for bare or rusty spots.
Repaint if necessary (par. 43).
73. Replacing Fuel Tank
a. Removal (fig. 19). Refer to paragraph 128 for removing part of the housing to make the fuel tank accessible.
Disconnect the tube assembly (6) at the connector (9). Remove the cap screws (12), washers (13), and nuts (14). Take
off the straps (11) from around the air receiver and fuel tank (7). Remove' the fuel tank from the unit. The fuel line to the
fuel pump can be removed by disconnecting the elbow (1) at the fuel pump and removing it from the tube assembly. Take
out the cap screw (4) with lockwasher (3) and remove the clamp (2). Pull the tube assembly through the grommet (5) in
the rear support. Unscrew the cover and lift out the screen (15). Unscrew the fuel level gage (16). Remove the elbow (8)
with the connection and the pipe plug (17). The packing (10) need not be removed.
b. Installation (fig. 19). Screw the elbow (8), pipe plug (17), and fuel level gage (16) into the fuel tank (7). Put in the
screen (15) and screw on the tank cover. Slide the tube assembly (6) through the grommet (5). Screw the elbow (1) into
the fuel pump and attach the tube assembly. Install the clamp (2) with the cap screw (4) and lockwasher (3). Place the
fuel tank in position under the air receiver and install the straps (11) around both tanks with the cap screw (12), washer
(13) and nut (14). Screw the tube assembly into the connector (9). Replace the part of the housing which was removed
74. Cleaning Fuel Pump
a. Loosen the thumb nut at the top of the fuel pump bail (fig. 20), and swing the bail down out of the way.
b. Remove the fuel bowl, bowl gasket and screen from the fuel pump cover.
c. Clean the screen thoroughly with solvent, and wipe out the inside of the bowl with a lint-free cloth.
d. Inspect the bowl gasket carefully. Replace gasket if there are any doubts as to its condition.
e. Reinstall the bowl gasket and bowl, and swing the bail up into place. Tighten the thumb nut securely.
61
