(2)
Put the safety barriers in position.
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(3) Put a warning notice in position to tell persons not to operate the MLG doors.
Subtask 28-21-52-860-058
B. Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
Defuel (Ref. TASK 28-25-00-650-001) or transfer (Ref. TASK 28-25-00-869-001) the fuel from the center tank.
(3)
For removal of the center-tank fuel pump canister 84QM:
(a) Defuel (Ref. TASK 28-25-00-650-001) or transfer (Ref. TASK 28-25-00-869-001) the fuel from the LH wing tank.
(4)
For removal of the center-tank fuel pump canister 85QM:
(a) Defuel (Ref. TASK 28-25-00-650-001) or transfer (Ref. TASK 28-25-00-869-001) the fuel from the RH wing tank.
(5)
Energize the ECAM system (Ref. TASK 31-60-00-860-001).
(6)
On the ECAM Control Panel:
-push (in) the FUEL system page button.
(7)
On the panel 40VU:
-release (out) the X FEED P/BSW. Make sure that the ON and OPEN lights go off.
(8)
On the ECAM SDU, make sure that the crossfeed valve indication shows green cross-line (closed).
(9)
On the ECAM SDU, turn the LOWER DISPLAY switch counter-clockwise to the off position. Make sure that the ECAM SDU goes off.
(10)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
(11)
Drain the remaining fuel from the center tank (Ref. TASK 28-25-00-650-003).
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C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU FUEL/L WING TK/PUMP2 SPLY 7QA N26 121VU FUEL/L WING TK/PUMP1 SPLY 1QA N23 121VU FUEL/CTR TK/PUMP2 SPLY 30QA P26 121VU FUEL/CTR TK/PUMP1 SPLY 29QA P23 121VU FUEL/R WING TK/PUMP2 SPLY 8QA Q26 121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23 123VU L WING TK/PUMP 1/STBY SPLY 11QA AD12 123VU R WING TK/PUMP 1/STBY SPLY 12QA AE12
Subtask 28-21-52-010-055
D. Get Access
(1)
Open the applicable MLG door 734(744) (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the GROUND LOCK SLEEVE is installed on the applicable MLG door actuating cylinder.
(3)
Remove the applicable fuel pump 37QA(38QA) (Ref. TASK 28-21-51-000-002).
(4)
Put the access platform in position below the applicable access panel 147AZ(148AZ).
(5)
Remove the applicable center-tank access-panel (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001):
-
FOR 84QM
remove 147AZ
-
FOR 85QM
remove 148AZ.
4. Procedure_________
**ON A/C 001-049, 051-061, 101-103, 201-203,
(Ref. Fig. 402/TASK 28-21-52-991-003)
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Fuel Pump Canister 84QM(85QM)
Figure 402/TASK 28-21-52-991-003
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R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499, Post SB 28-1077 For A/C 001-049,051-061,101-103,201-203, (Ref. Fig. 402A/TASK 28-21-52-991-003-B) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-21-52-020-054
A. Removal of the Fuel Pump Canister 84QM(85QM)
(1)
Disconnect the pipe (1).
(2)
Remove the bolt (14) and the washer (15). Release the bonding strap (11).
(3)
Put a container below the connectors (13) and (17).
(4)
Remove the nuts (5) and (10) and the bolts (12). Remove the bracket (9).
(5)
Remove the nuts (22), the washers (21) and the bolts (16).
(6)
Remove the bolts (19) and the washers (20).
(7)
Release the connectors (13) and (17). Remove and discard the O-rings
(7) and (18).
(8)
Remove the applicable canister (4). Remove and discard the sealing ring (23).
(9)
If you are to replace the canister (4), remove the reducer (2). Remove and discard the O-ring (3).
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