Subtask 28-21-52-865-052
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------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
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-21-52Page 448 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 Subtask 28-21-52-860-052

 C. Aircraft Maintenance Configuration
 (1)
 Make sure that the cross-feed valve is closed.

 (2)
 Make sure that the center tank and applicable wing tank are defueled (Ref. TASK 28-25-00-650-001).

 (3)
 Make sure that the remaining fuel has been drained from the center tank (Ref. TASK 28-25-00-650-003).

 (4)
 Make sure that the applicable MLG door is open (Ref. TASK 32-12-00-010-001).

 (5)
 Make sure that the GROUND LOCK SLEEVE is installed on the applicable MLG door actuator.

 (6)
 Make sure that the access platform is below the applicable access panel 147AZ, 148AZ.

 (7)
 Make sure that the applicable access panel 147AZ, 148AZ is removed (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001).

 4. Procedure
_________
 **ON A/C 001-049, 051-061, 101-103, 201-203,

 (Ref. Fig. 402/TASK 28-21-52-991-003) 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 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-21-52Page 449 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,

 Subtask 28-21-52-560-052
 A. Preparation for a Replacement Component
 WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
 (1)
 Lubricate the new O-ring (3) with FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012).

 (2)
 Install the new O-ring (3).

 (3)
 Install the reducer (2).

 (4)
 Install the stud (8) and the nut (6).

 Subtask 28-21-52-420-058
 B. Preparation for Installation
 (1)
 Clean the component interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).

 (2)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (3)
 Do an inspection of the component interface and/or the adjacent area.

 (4)
 Lubricate the new items that follow with FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012):

 -
the O-ring (7)

 -
the O-ring (18)

 -
the sealing ring (23).

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-21-52Page 450 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-061, 101-103, 201-203,

 Subtask 28-21-52-420-054
 C. Installation of the Fuel Pump Cannister 84QM(85QM)
 (1)
 Install the new sealing ring (23) and the new O-rings (7) and (18).

 (2)
 Engage the connectors (13) and (17), while you put the canister (4) in position.

 (3)
 Install the canister (4) with the bolts (19) and the washers (20).

 (4)
 Install the connector (17) with the bolts (16), the washers (21) and the nuts (22).

 (5)
 Put the bracket (9) in position and install it and the connector (13) with the bolts (12) and the nuts (5) and (10).

 (6)
 Install the pipe (1).

 (7) Install the bonding strap (11) with the washer (15) and the bolt (14) (Ref. TASK 20-28-00-912-006). 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,
 Subtask 28-21-52-420-054-A

 C. Installation of the Fuel Pump Cannister 84QM(85QM)
 (1)
 Install the new sealing ring (23) and the new O-rings (7) and (18).
　
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