TM 55-1520-240-23-1
1-51
SINGLE POINT REFUELING
(Continued)
1-51
If either the PRI OFF or SEC OFF
float switch shutoff for any tank is
inoperative, do not pressure refuel
that tank unless the fuel cap is
removed to prevent possible fuel cell
over pressurization.
If both switches are inoperative, do
not pressure refuel the helicopter.
Also, if both switches are inoperative
for either main tank, the fault must be
repaired before flight.
NOTE
To fill all fuel tanks, perform steps 15
and 16, then go to step 25.
TO FILL ALL FUEL TANKS
15.
Set ALL TEST switch (11) to FLOW.
NOTE
Tanks are full when totalizer stops.
16.
Watch totalizer (19). Totalizer shall indicate
about 7000 pounds. When totalizer stops, go
to step 25.
NOTE
To add fuel to one or more fuel tanks,
perform steps 17 thru 24. Then go
to step 25.
TO ADD FUEL TO ONE OR MORE FUEL TANKS
17.
Set six FUEL CELL SHUTOFF VALVE TEST
switches (10) to PRI OFF.
18.
Set ALL TEST switch (11) to FLOW.
19.
To add fuel to left aft fuel tank.
a.
Set FUEL QTY SEL switch (8) to L AFT.
b.
Set FUEL CELL SHUTOFF VALVE TEST LH
REFUEL AFT switch (10) to FLOW.
c.
Set FUEL CELL SHUTOFF VALVE TEST LH
REFUEL AFT switch (10) to PRI OFF when
pointer (9) indicates fuel level desired.
20.
To add fuel to left main fuel tank.
a.
Set FUEL QTY SEL switch (8) to L MAIN.
b.
Set FUEL CELL SHUTOFF VALVE TEST LH
REFUEL MAIN switch (10) to FLOW.
c.
Set FUEL CELL SHUTOFF VALVE TEST LH
REFUEL MAIN switch (10) to PRI OFF when
pointer (9) indicates fuel level desired.
NO BREAK - WORK HARDER
NO BREAK - WORK HARDER
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