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is cut and particles may be ejected from
the cable cutter.
1. Personnel — Clear.
2. CABLE CUTTER switch — ON.
9-2-6. ERFS II and FARE.
9-2-7. Failure of Fuel Quantity Gauge.
F Remove filler cap from filler opening and look into tank.
Using a explosion proof flashlight or other sealed beam
light source, locate fuel tabs which are attached to inside
of column module at calibrated heights, increments of
1/4. 1/2, and 3/4. Any tab covered with fuel will normally
not be visible.
9-2-8. No or Slow Fuel Transfer to the Main Tanks.
F 1. Manually operated fuel/defuel valve —
Check CLOSED.
F 2. Unisex couplings — Check.
F 3. Breakaway valves — Check open and for
fracture.
F 4. Pumps — Check for operation.
F 5. Tank circuit breakers on FUEL CONTROL
PANEL — Check reset in.
F 6. Ensure vent lines connected.
9-2-9. IN FLIGHT Emergency ERFS II Fuel Transfer to
main Tanks.
Using the FARE pump:
F 1. FARE pump module to rear most ERFS II
tank — Install.
F 2. STA 380 fuel transfer hose to rear most
ERFS tank, fuel manifold hose — Disconnect.
F 3. Rear most ERFS II tank fuel manifold coupling
to FARE pump inlet (Top) coupling —
Connect.
F 4. FARE pump module outlet (lower) coupling
to STA 380 fuel transfer hose — Connect.
TM 1-1520-240-10
9-2-2
NOTE
Before FARE fuel transfer begins, a path from
the desired ERFS II tank to the helicopter
main tanks must be established and the fuel
should be transferred from only one tank at a
time.
F 5. “T” couplings on ERFS II tanks not being
transferred — CLOSE.
CAUTION
There is no gauge on board the aircraft to
provide measurements of GPM or PSIG.
The rate at which fuel is transferred from
the ERFS II tanks to the Helicopter main
tanks is 20 GPM. The rate at which fuel is
transferred from the ERFS II tanks using
the FARE pump and standard FARE transfer
hose assembly is 84 to 88 GPM. The
FARE pump is rated at 120 GPM. Suction
defueling pressure should not exceed -11
PSIG. Do not exceed 5 PSI except in
extreme emergency. The ERFS II outer
container is expected to fail at 10 PSI or
greater. The crash resistant bladder will
prevent spillage and fuel can still be transferred.
F 6. FARE valve control handle OFF LOAD
Position.
F 7. FARE pump — ON.
F 8. ERFS II tank manually operated fuel/defuel
valve — OPEN.
F 9. Once ERFSII tank empties, tank fuel manifold
“T” coupling — CLOSE.
F 10. Next ERFS II tank fuel manifold “T”
coupling — OPEN.
F 11. Next/remaining ERFS II tank manually operated
fuel/defuel valve — OPEN.
F 12. Once ERFS II tank empties, tank fuel manifold
“T” coupling — CLOSE.
F 13. FARE pump — OFF.
9-2-10. FARE Pump Failure During Ground FARE
Refueling Operation.
F 1. Filters — Remove.
F 2. Overwing nozzle — Install and use.
F 3. Manually operated fuel/defuel valves —
OPEN.
NOTE
If three ERFS II tanks are installed and all the
in-tanks are on, a 60 gallon per minute rate
can be achieved.
F 4. ERFS II tank pumps — ON.
9-2-11. EAPS 1 FAIL and/or EAPS 2 FAIL Caution
Light ON.
1. EAPS DOORS switch (affected engine) —
OPEN.
2. EAPS FAIL: caution capsule — Check out.
F 3. EAPS BYPASS DOORS OPEN light —
Verify light is ON.
TM 1-1520-240-10
FP-1/(FP-2 blank)
Figure FO-1. General Arrangement (Sheet 1 of 2)
TM 1-1520-240-10
FP-3/(FP-4 blank)
1. Engine
2. EAPS
3. EAPS fan exhaust
4. EAPS rails and slides
Figure FO-1 General Arrangement (Sheet 2 of 2)
TM 1-1520-240-10
FP1-5/(FP1-6 blank)
DC ALE 47
DCDU
5 10
NO.1 SEQ NO.2 SEQ
NOTE: PDPs ROTATED 90 DEGRES FOR CLARITY
PDP#2 HAS AN EXTENDED PANEL (NOT SHOWN)
CONTAINING THE EAPS CIRCUIT BREAKERS.
Figure FO-2. Power Distribution Panel (Typical) 712
TM 1-1520-240-10
FP1-7/(FP1-8 blank)
EAPS 1 FAN
EAPS 2 FAN
Figure FO-3. AC Power Supply (Typical) 712
TM 1-1520-240-10
FP1-9/(FP1-10 blank)
EAPS BYPASS DOOR
EAPS 1 FAN CONT
EAPS BYPASS DOOR
EAPS 2 FAN CONT
Figure FO-4. DC Power Supply (Typical) 712
TM 1-1520-240-10
FP1-11/(FP1-12 blank)
DC ALE 47
NO. 1 SEQ NO. 2 SEQ
DCDU
5 10
NOTE: PDPs ROTATED 90 DEGRES FOR CLARITY
PDP#2 HAS AN EXTENDED PANEL (NOT SHOWN)
CONTAINING THE EAPS CIRCUIT BREAKERS.
　
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