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Figure  4-4-3.  ERFS Fuel System Schematic
CHAPTER  5 OPERATING LIMITS AND RESTRICTIONS

TM-1-1520-240-10 Army CH-47D Heilcopter (EIC:RCD) Manual
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TM  1-1520-240-10            4-4-7/(4-4-8 blank) 4-4-9.  FARE Transfer. CAUTION Some fuel will remain trapped in the FARE pump  module,  suction  hose,  filters,  and collapsible   hoses   after   suctioning   and rolling of the FARE hoses has been com- pleted. To avoid spilling trapped fuel, the valves  in  the  Unisex  couplings  must re- main closed and the couplings capped af- ter the FARE system is disassembled. All trapped fuel should be drained into an ap- propriate container when the operational situation permits. WARNING The   manually   operated   FUEL/DEFUEL valve must be placed in the CLOSED posi- tion following FARE operation. Failure to do so could permit significant fuel leakage in the event of a crash and the vent self- sealing breakaway valve fails to actuate. a. Single-Point Pressure Refueling Hose Assembly – Unisex valve at ERFS II tank — check CLOSE. b. Valve in the base of the Unisex “T” coupling on tanks that are NOT the fuel source — CLOSE. c. Valve in the base of the Unisex “T” coupling on tank that is the fuel source — OPEN. d. Manual FUEL/DEFUEL Valve on the tank that is the fuel source — OPEN. e. FARE Valve Control Handle — OFF-LOAD. f. Flowmeter DISPLAY button — Press until TOTAL 2  is  displayed.  Press  and  hold  three  seconds  to  zero batch total. g. FARE PUMP switch — REMOTE. h.To begin FARE transfer. i. Remote    Control    Handle    trigger    switch    — Squeeze. When FARE transfer is complete: j. FARE Valve Control Handle — SUCTION. k. Valves  in  the  Unisex  couplings  adjoining  the nozzle(s), and filter(s) — CLOSE. Remove nozzles and filters  from  dispensing  hoses,  replace  dust  caps,  and stow in FARE container. Reconnect hoses. Valves in the Unisex couplings, except at nozzle end — OPEN. Valve in  Unisex  coupling  at  far  end  of  hose  assembly  — CLOSE. l. Remote    Control    Handle    trigger    switch    — Squeeze to suction fuel from hose assemblies and return it to tank. While the FARE pump is running, slightly open the Unisex valves at the nozzle ends of the collapsible hoses to permit the pump to evacuate most of the fuel prior to rolling the hose. m.   Collapsible  Fuel  Hose  Assemblies  —  Lift  and tightly roll from the nozzle end toward the pump module while the pump is suctioning fuel from the hose. Close the valves in the Unisex couplings as they are reached in the disassembly  process.  Disconnect  the  hoses,  replace dust caps, and stow in the FARE container. Repeat this process  until  all  collapsible  fuel  hose  assemblies  are recovered. n. Remote  Control  Handle  trigger  switch  —  Re- lease. o. FARE PUMP switch — OFF. p. Manual FUEL/DEFUEL valve(s) — CLOSED. q. Valve in the base of the Unisex “T” coupling on all tanks — check OPEN.







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