(2)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
(3)
On the FUEL overhead panel 40VU, make sure that all L TK PUMPS and the R TK PUMPS pushbutton switches are released (the OFF legends are on).
Subtask 49-31-00-865-055
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/X FEED/VALVE/MOT1 2QE A12 49VU APU/FUEL/BLOW OFF/PUMP 2QC B14 121VU APU/FUEL/BLOW OFF/CTL 1QC K39 121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41 121VU APU/FUEL/LP VALVE/CTL 1QF M40 121VU APU/FUEL/LP VALVE/SPLY 2QF M39 121VU APU/FUEL/PUMP/CTL 3QC M38 121VU FUEL/X FEED/VALVE/MOT2 1QE M24 121VU FUEL/L WING TK/PUMP2 SPLY 7QA N26 121VU FUEL/L WING TK/PUMP1 SPLY 1QA N23 121VU FUEL/R WING TK/PUMP2 SPLY 8QA Q26 121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23
Subtask 49-31-00-010-052
C. Get Access
(1)
Open the LH main landing-gear (MLG) door (Ref. TASK 32-12-00-010-001).
(2)
Put the stepladder in position at the LH MLG door.
4. Procedure
_________ Subtask 49-31-00-710-056
A. Operational Test of the APU Fuel Low Pressure Circuit
NOTE : You can feel with your hand when the APU fuel pump operates.
____
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ECAM control panel:
-push the APU pushbutton switch.
2. On the FUEL overhead panel 40VU:
-push the L TK PUMPS 1
pushbutton switch.
3. Start and operate the APU (Ref. TASK 49-00-00-860-005).
NOTE : Operate the APU with no
____ electric and/or pneumatic load.
4. On the FUEL overhead panel 40VU:
-release the L TK PUMPS 1
pushbutton switch.
5. On the circuit breaker panel 49VU: - open the circuit breaker
APU/FUEL/BLOW OFF/PUMP 2QC. On the circuit breaker panel 121VU: - open the circuit breaker
APU/FUEL/BLOW OFF/CTL 1QC.
On the lower ECAM display unit:
-
the APU page comes into view.
On the FUEL overhead panel 40VU:
-
the OFF legend in the L TK PUMPS 1pushbutton switch goes off.
At the APU fuel pump 4QC on theFR42/ZONE 140:
-
the APU fuel pump is off.
On the FUEL overhead panel 40VU:
-
the OFF legend in the L TK PUMPS 1pushbutton switch comes on.
At the APU fuel pump 4QC on the FR42/ZONE 140:
-
the APU fuel pump operates.
At the APU fuel pump 4QC on theFR42/ZONE 140:
-
the APU fuel pump stops.
On the lower ECAM display unit:
-the FUEL LO PR message comes on (after a short time).
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
6.
Do the APU shutdown (Ref. TASK 49-00-00-860-006).
7.
On the circuit breaker panel 49VU:
-
close the circuit breaker
APU/FUEL/BLOW OFF/PUMP 2QC. On the circuit breaker panel 121VU:
-
close the circuit breaker APU/FUEL/BLOW OFF/CTL 1QC.
8. On the APU section of the overhead panel 25VU:
-push the APU MASTER SW pushbutton switch to the on position.
9. On the APU section of the overhead panel 25VU:
-release the APU MASTER SW pushbutton switch to the off position.
NOTE : It is possible, that an APU AUTO
____ SHUTDOWN occurs.
On the lower ECAM display unit:
-the FUEL LO PR message goes off. NOTE : The ECB (59KD) stores the fault
____ message FUEL LOW PRESSURE OR LOW FUEL PRESS SW P17 (CLASS 2).
At the APU fuel pump 4QC on theFR42/ZONE 140:
-
the APU fuel pump operates.
On the APU section of the overheadpanel 25VU:
-
the ON legend in the APU MASTER SWgoes off.
At the APU fuel pump 4QC on the FR42/ZONE 140:
-
the APU fuel pump stops.
5. Close-up
________ Subtask 49-31-00-410-053
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the stepladder from the LH MLG door.
(3)
Close the LH MLG door. (Ref. TASK 32-12-00-410-001) Subtask 49-31-00-860-053
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