1EFF : 301-399, 1 28-26-51Page 411 1 1 Nov 01/04 1 1 1CES 1
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
R 6. Let the R TK PUMPS 1 and 2 operate for three minutes.
7. On the panel 40VU:
-after three minutes, release (out) the CTR TK R XFR P/BSW.
8. Let the R TK PUMPS 1 and 2 operate for three more minutes.
R 9. On the panel 40VU:
-release (out) the R TK PUMPS 1 and 2 P/BSWs.
5. Close-up
________
Subtask 28-26-51-650-051
A. Fuel Configuration
-
the fuel control valve opens.
On the ECAM SDU:
-
the indication for the CTR RH pump changes from amber cross-line (pump not in operation) to green in-line (pump in operation).
On the ECAM SDU make sure that:
-
the fuel quantity indication for the center tank decreases, while the fuel quantity indication for the RH wing tank increases.
On the panel 40VU:
-
the OFF light of the CTR TK R XFRP/BSW comes on
-
the fuel control valve closes.
On the ECAM SDU make sure that:
-
the fuel quantity indication for the RH wing tank stops increasing
-
the fuel quantity indication for the center tank stops decreasing.
On the ECAM SDU:
-
the fuel pump indications show ambercross-line (pumps not in operation).
On the panel 40VU:
-
the OFF lights of the R TK PUMPS 1 and 2 come on.
(1) Refuel, defuel or transfer fuel as necessary (Ref. TASK 12-11-28-650-003), (Ref. TASK 28-25-00-650-001), (Ref. TASK 28-25-00-869-001).
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B. Aircraft Maintenance Configuration
(1)
Do the EIS Stop Procedure (Ref. TASK 31-60-00-860-002).
(2)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 28-26-51-942-050
C. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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APU LP FUEL SHUT OFF - DESCRIPTION AND OPERATION
________________________________________________
1.
General
_______ (Ref. Fig. 001) The APU Low Pressure (LP) fuel shutoff system has an APU fuel LP valve. The valve is used to isolate the APU fuel-supply line from the engine-feed line, when the APU does not operate. The valve also serves as a fire shut-off valve in case of APU fire. The APU fuel-supply line is routed through the pressurized fuselage. Three tanks, one in each wing and one in the wing center box in the fuselage are used to store the fuel.
2.
Component Location
__________________
**ON A/C 001-004, 051-056,
(Ref. Fig. 002)
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
-------------------------------------------------------------------------------3QF ACTUATOR-APU FUEL LP VALVE 147 734 28-29-51 14QM VALVE-APU FUEL LP 141 315AL 28-29-41
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