(b)
Make sure all the indicator displays show 888.8 for one second and then go off for one second.
NOTE: The test display will continue to cycle until you
____
release the switch.
(c)
Release the test switch.
(d)
Make sure all fuel quantity displays go back to the usual indication.
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(6) Makes sure the P42 panel is set for a manual refuel operation:
(a)
VALVE POSITION CONTROL switches - CLOSED
(b)
ALL VALVES switch - CLOSED
(c)
SELECT QTY thumbwheel - no values input
(d)
TOTAL PRESELECT indicator- blank
(e)
CTR PRESELECT indicator - blank
G. Prepare the Fuel Sheet
S 653-063
(1)
Record the pre-uplift fuel quantity for each tank.
S 653-064
(2)
Calculate the fuel to be uplifted converted to volume.
S 653-065
(3)
Record the uplift quantity on the fuel sheet.
H. Begin the Refuel Operation
S 653-066
(1)
Decide which fuel tanks to refuel.
S 653-067
(2)
Put the VALVE POSITION CONTROL (MANUAL) switches to the OPEN position for all fuel tanks that are to be refueled.
NOTE: You can put the ALL VALVES switch to the OPEN position if all
____ tanks are to be refueled to VTO. This is the same action as individually opening each refuel valve switch.
S 653-069
(3) Activate the fuel shutoff control switch (deadman switch) to start the fuel flow.
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(4)
Make sure the refuel pressure is between 35 and 55 psi.
S 653-071
(5)
Make sure the refuel valve indication lights come on (valves open).
S 653-072
(6)
Make sure the left and right wing fuel tanks refuel at approximately the same rate.
S 653-073
(7)
Monitor the fuel quantity in each tank.
NOTE: The FQPU will not automatically control the distribution of
____
the fuel load.
S 653-074
(8) Do these steps to test the FQPU refuel valve shutoff control:
NOTE: When you press the TEST SYS switch on the P42 panel, the FQPU
____ momentarily closes the refuel valves to check for FQPU valve shutoff control.
(a)
Push the TEST SYS switch for a minimum of two seconds and then release the switch.
(b)
The refuel valve lights will go out and then come on again.
(c)
The refuel operation will continue.
S 653-076
(9) Monitor the fuel quantity indicators and refuel valve indication lights.
I. Stop the Refuel Operation
S 653-077
(1) Put the individual refuel valve switches to the CLOSED position at the required fuel quantity.
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(2) If opened, put the ALL VALVES switch to the CLOSED position when all of the refuel valve position lights are off.
NOTE: The FQPU will automatically close the tank refuel valve(s)
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