TM 9-2320-211-10-1
c.
CAUTION
Open aperture flap (1) when engine temperature goes
up above 180F. If engine temperature keeps going up,
take off engine compartment cover (3) completely, so
that engine does not overheat.
Open (roll up) aperture flap (1), when necessary, and tie flap with
1.
webbing straps (2).
2.
To take off engine compartment cover (3), when necessary, loosen lashing
ropes (4) and pull off cover.