Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOV
A i r B ox
The purpose of this item is to ex-
ercise the vanes in the air box
heater air pump.
Disconnect lead from fuel shut-
To prevent engine from starting,
pull fuel cutoff out (see your -10).
Air pump can be damaged if
switch is held on too long. Do not
exceed a total of 20 seconds of op-
Have assistant crank engine and run
air pump at the same time intermit-
tently for total of 20 seconds. Listen
for air pump operation (see your -10).
Connect lead to fuel shutoff solenoid.
Lubricate air motor with OE/HDO
every 1500 miles, semi-annually or as
2-90 Change 3