TM 1-1510-225-10
2-66
NOTE
If an engine driven boost pump
fails,
pressure
can
be
maintained
by
placing
the
respective
standby
pump
switch to ON.
NOTE
The
engine-driven
primary
(high-pressure) fuel pump is
limited
to
10
hours
of
operation, throughout its TBO
period, without standby fuel
pump or engine-driven boost
pump fuel pressure.
NOTE
The system will suction-lift fuel
only to its respective engine-
driven boost pump i.e., left or
right. Fuel will not gravity feed
through the crossfeed system.
Figure 2-21. Gravity Feed Fuel Flow
GRAVITY FEED FUEL FLOW
SUCTION LIFT
