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12-11-01
ú ALL ú
ú ú ú 10.101 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 309Sep 28/02
A
757 MAINTENANCE MANUAL
S 213-004
(17)
Make sure the top and bottom displays of the load select indicators show all eights (8).
S 863-005
(18)
Push and release each fueling valve light.
S 213-011
(19)
Make sure each fueling valve light comes on and then goes off.
S 863-012
(20)
For each fuel tank that you are to refuel, set the fuel quantity as follows:
(a) At the LOAD SELECT control, set the thumbwheel switches to the
necessary quantity of fuel.
(b) GUN 001-010;
Push the SET switch for the applicable fuel tank for 1
second and release.
(c) GUN 011-999;
Push the SET switch for the applicable fuel tank for 1
second and release.
NOTE:____ If the message "FAIL" shows in the bottom display,
there is a a load select indicator failure. Do a check
of the load select indicator, M638, and the applicable
wiring (WDM 28-21-22).
(d) Make sure the quantity on the LOAD SELECT control shows on the
bottom display of the applicable load select indicator.
1) If you make an error during the selection procedure, push
the applicable SET switch and do the procedure again.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-11-01
ú ALL ú
ú ú ú 10.101 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 310Sep 28/02
A
757 MAINTENANCE MANUAL
S 863-014
(21) Put the applicable fueling valve switches to the FUEL position.
NOTE:____The FQIS processor controls the start of fueling. The fueling shutoff valves close automatically, if a malfunction occurs, or if the set fuel quantity is put into the fuel tank.
If you push the TEST SYSTEM switch during the fueling procedure, it causes the FQIS processor to test the pressure fueling system. The FQIS processor does a load select test, and a full tank shutoff test. After these tests are done, the fueling shutoff valves close in sequence. The fueling shutoff valves then open, and fueling continues.
If you put the fueling valve switches to the OFF position during automatic fueling, the pressure fueling operation stops.
S 653-010
(22) Start the fueling source.
(a) Make sure the applicable blue fueling valve lights come on.
S 213-127
(23)
Monitor the fuel quantity for each fuel tank.
S 863-011
(24)
Push the SYTEM TEST switch to do a test of the refueling system.
ú NOTE:____When you push the SYSTEM TEST switch during the refueling procedure, it causes the FQPU to test the pressure refueling system. The FQPU does a load select test, and a full tank shutoff test. After these tests are done the fueling valves will close in sequence. The fueling valves will then open and refueling will continue.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-11-01
ALL ú ú 01.1 Page 311 ú Sep 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 863-020
(25) When fueling is done, put the fueling valve switches for all the applicable tanks to the OFF position.
NOTE: The FQIS system will automatically close the applicable
____ fueling shutoff valves when the set fuel quantity is put in the fuel tank or the fuel tank is full.
S 653-021
(26)
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