TM 1-1520-240-10
4-4-4
4-4-5. Restraint System.
Each tank restraint system consists of an aluminum
frame and straps of polyester webbing with connecting
hardware and ratcheting buckles. This system provides
longitudinal, vertical, and lateral restraint. The forward,
vertical, and lateral restraint ratings are 8g’s and the aft
rating is greater than 3g’s. Each of the buckles are con-
nected to twelve 5,000 pound tiedown rings on the heli-
copter cargo floor.
4-4-6. ERFS II Fuel Control Panel.
All transfer of ERFS II fuel into the helicopter main fuel
tanks is controlled by the ERFS II Fuel Control Panel (fig.
4-4-2). The control panel is located and mounted on the
forward most ERFS II tank facing forward. It has individu-
al switches that control the operation of the transfer
pumps and circuit breakers to protect each of the pumps
in the tank. Illumination is controlled by a dimmer rheo-
stat on the fuel control panel and is night vision goggles
(NVG) compatible. Electrical cables run from cargo
compartment AC and DC utility outlets at STA 358 and
320 to the ERFS II fuel control panel, and from the panel
to connectors on each tank. A fuel quantity gauge is
installed on the panel to provide readings in pounds of
fuel for the individual tanks and their combined total fuel
remaining.
4-4-7. Fuel Transfer to Helicopter Main Tanks.
a.
Manual FUEL/DEFUEL valve in all installed
ERFS II tanks – CLOSED.
NOTE
An OPEN manual FUEL/DEFUEL valve on
the transferring ERFS II tank will significantly
reduce the transfer rate because of fuel cir-
culation inside the tank. An OPEN valve on a
non-transferring tank will result in fuel transfer
into that tank if it is not full.
b.
Unisex valves in ERFS II fuel transfer hose as-
sembly – OPEN.
c.
Select the ERFS II tank from which fuel is to be
transferred.
d.
PUMP switch for the selected tank – OVERRIDE.
Hold in this position until PRESS LOW light goes out
(normally less than five seconds). When released, the
spring-loaded switch will return to the ON position and
fuel transfer will continue.
e.
Monitor the helicopter fuel indicators to verify fuel
transfer.
f.
PUMP switch for selected tank – OFF when di-
rected by the pilot or when the PRESS LOW light illumi-
nates.
g.
FUEL QUANTITY switch – Set to 1, 2, or 3 for
selected tank to confirm desired amount of fuel trans-
ferred.
4-4-8. Forward Area Refuel (FARE) Kit Assembly.
The FARE kit contains a pump module with a self-priming
pump rated at 120 GPM and Flowmeter. The pump can
be used to either fuel or defuel the ERFS II tanks. The
pump module easily mounts on any one of the tanks
when used. A manually operated valve reverses the fuel
flow and permits defueling of the hoses after FARE op-
eration. Two in-line, multiple cartridge filters capable of
filtering out 5 micron absolute particulates are included
as part of the FARE kit. The 45 inch x 44 inch x 35 inch
container for FARE component storage is secured to the
cargo floor (fig. 4-4-3).
