TM 3-4230-237-10
0005 00
ASSEMBLY AND PREPARATION FOR USE - Continued
Fueling - Continued
1. Wipe off the dirt around the filler pipe opening and the fuel tank cap. Remove the cap by turning it counterclockwise until
it stops. Then press down, to allow the projections on the cap pressure plate to pass under the projections on the filler pipe
neck ramp, and lift off the cap.
2. Fill the fuel tank until the fuel is approximately 1 inch below the filler neck.
WARNING
Running the M12A1 with the vent closed causes a vacuum inside the fuel tank. That can cause the engine
to stop running. Removing the fuel tank cap too fast could let in-rushing air force fuel out of the tank. If the
fuel spills on the engine, the M12A1 could catch fire, causing injury to personnel. The fuel tank cap vent
stays open.
3. Make sure that the vent inside the cap is open and push the filler sleeve down. Place the cap on the filler neck and turn it
clockwise until a stop is felt. Press down on the cap and turn farther to lock it.
0005 00-2
