(2)
AIPC 28-31-01 Fig. 5

 (3)
Boeing Drawing 344U0052, Interchangeable Parts - 747 Fuel Pumps

 (4)
AMM 28-11-00/801, Fuel Tank Repair

 (5)
AMM 28-31-07/401, Fuel Override/Jettison Pump Housing

 (6)
AMM 51-21-04/701, Alodine Coating

 (7)
SWPM 20-10-11, Installation of Electrical Wires and Harnesses

 (8)
SWPM 20-20-00, Electrical Bond and Ground

 (9)
SSM 28-31-02, SSM 28-31-04

 (10)
 WDM 28-31-21, WDM 28-31-22, WDM 28-31-23, WDM 28-31-24

 (11)
 WDM 28-31-25, WDM 28-31-26

 B.
Consumable Materials

 (1)  
C00064 Coating - Alodine 600 Chemical conversion coating for aluminum or aluminum alloys, (MIL-C-5541).

 (2)
C00307 Corrosion Resistant Finish - BMS 10-20 Type II

 (3)
D00128 Petrolatum - Technical, VV-P-236

 C.
Parts

 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Packing | 28-31-01 | 05 | 40 | | | 3 | Pressure Switch | | | 35 | | | 4 | Motor/Impeller Unit | | | 75,76 | | | 6 | Packing | | | 100 | | | 7 | Packing | | | 95 | | | 8 | Packing | | | 90 | | | 9 | Coupling | | | 110 | | | 10 | Packing | | | 105 | | | 11 | Bonding Jumper | | | 30,31 | | | 12 | Bonding Clip | | | 70,72 | | | 13 | Drain Plug | | | 130 | | | 14 | Packing | | | 135 | | | 15 | Bonding Clip | | | 71 | | | 16 | Bonding Jumper | | | 30 | | | 17 | Screw (Socket Head) | | | 50 | | | 18 | Washer (NAS1149DN832J) | | | TBF | 2......…........…...................................…..........….....….........1
 Reference: Figure 401 (Center Wing Tank)
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 ALL  ú ú 10 Page 411 ú Feb 18/02
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 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Packing | 28-31-01 | 02 | 50 | | | 3 | Pressure Switch | | | 45 | | | 4 | Motor/Impeller Unit | | | 90,91 | | | 6 | Packing | | | 115 | | | 7 | Packing | | | 110 | | | 8 | Packing | | | 105 | | | 9 | Coupling | | | 125 | | | 10 | Packing | | | 120 | | | 11 | Bonding Jumper | | | 41-44 | | | 12 | Bonding Clip | | | 81,83 | | | 13 | Drain Plug | | | 145 | | | 14 | Packing | | | 150 | | | 15 | Bonding Clip | | | 82 | | | 16 | Bonding Jumper | | | 40,41 | | | 17 | Screw (Socket Head) | | | 65 | | | 18 | Washer (NAS1149DN832J) | | | TBF | 2......…........…...................................…..........….....….........1
 Reference Figure 401 (Main 2 & 3)
 D. Access
 (1)  
Location Zones 135 Wing Landing Gear Well, Left 136 Wing Landing Gear Well, Right 571 Rear Spar to Landing Gear Support Beam, Left 671 Rear Spar to Landing Gear Support Beam, Right

 E.
Install the Fuel Override/Jettison Pump Motor/Impeller Unit

 S 144-184
 (1)  
Prepare these faying surfaces for an electrical surface bond (SWPM 20-20-00):

 (a)  
Mating surface of the motor/impeller unit (4) at the housing flange and the mating surface on the housing (View B).

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 ALL  ú ú 38 Page 412 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL

 (b)  
Mating surface of the bonding clip(s) and the mating surface of the motor/impeller unit (4) (View B-B).

 (c)  
PUMPS WITH A BRACKET MOUNTED ELECTRICAL CONNECTOR; Mating surface of the electrical connector bracket and the mating surface of the bonding jumper (16) (View E).

　
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