Section IV. OPERATING INSTRUCTIONS
Smoking not permitted anytime on military
FMCP pumping system will not be operated
without fuel in the 600 gallon tanks, or with
tank cam lever in the "CLOSED" position.
System fuel pumps are self-priming.
2-8. SCOPE. Operating instructions are provided in
this section for the ERFS and FMCP. A description on
how to use operator controls and indicators is also
provided. Included in this section are the preventive
maintenance checks and services (PMCS) procedures,
and instructions for operation of the ERFS under usual
and unusual conditions.
2-9. CONTROLS AND INDICATORS. The controls
and indicators for the ERFS and FMCP are illustrated
and described in Figure 2-21, Table 2-4, and Figure 2-
22, Table 2-5. Figure index numbers key each control
and indicator to the pertinent information in the tables.
2-10. PREFLIGHT INSPECTION. In addition to the
preflight inspection procedures defined in TM 55-1520-
240-10, perform the applicable checks and services
listed on the PMCS, Table 2-6, prior to applying
electrical power for system operation.
A fuel sample is required before the first
flight of the day and after each refueling.
To avoid tripping system circuit breakers, do
not turn on any two pump switches at once
(2, Figure 2-23). Allow at least 10 second
delay between each pump switch actuation.
a. Check all fuel manifold lines, electrical lines,
grounding cables, and vent lines to ensure that they are
properly secured and connected.
b. Check for chafing of fuel manifold lines and
c. Ensure tank tiedown straps are secured.
d. Ensure ERFS tanks are properly fueled, 580
gallons maximum per tank.
e. Take fuel sample from each tank.
2-11. TURN-ON PROCEDURES. To turn system ON,
use the following procedures:
a. To apply power to the ERFS, the APU or engines
must be operating. The FMCP electrical power cords
connect to electrical receptacles on the LH/RH side of
the aircraft at station 260.
b. Open appropriate tank cam levers (dump
c. Power ON. Perform power ON checks prior to
system operation, Figure 2-23.
d. Ensure the indicator lights (1) are operative by
press to test method. Lights should be ON when pumps
are in operation, Figure 2-23.
e. Each toggle switch (2) activates its respective
pump when in ON position, and shuts pumps off when in
OFF position, Figure 2-23.