S 034-006

 (4)  
If the access door contains a fuel measuring stick, lower the housing through the door (AMM 28-44-02/401).

 NOTE: This will make sure that you can turn the access door
____
 through the opening.

 S 034-033
 CAUTION:_______BE CAREFUL WITH THE CLAMP RING AND THE GASKET. YOU CAN CAUSE DAMAGE TO THEM.
 (5)  Hold the clamp ring and remove the mounting screws (23 locations).
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 S 034-008
 (6)  
Remove the clamp ring and the knitted aluminum gasket from the access door.

 S 034-025

 (7)  
Put the clamp ring and the knitted aluminum gasket in a flat container.

 S 024-009
 CAUTION: DO NOT PUT AN OBJECT BETWEEN THE WING SKIN AND THE ACCESS DOOR
_______ TO REMOVE THE DOOR. IF YOU CAUSE DAMAGE TO THE WING SKIN OR THE ACCESS DOOR SEALS, A FUEL LEAK CAN OCCUR.
 (8)  Push the access door up and remove the access door from the fuel tank.
 NOTE: If the door cannot be easily removed, hit the door lightly
____ around the edge with a rubber mallet.
 S 034-010
 (9)  Install the rubber cover around the access door opening.
 TASK 28-11-02-404-011
 3. Reserve or Main Tank Access Door Installation (Fig. 402)
_____________________________________________
 A. Consumable Materials
 (1)  
B00083 Solvent - Aliphatic Naphtha, TT-N-361

 (2)  
D00020 Grease, Anticorrosion - Aero Shell No. 14, MIL-G-25537

 (3)  
G00000 Cloth - Clean, Lint-free

 B.
References

 (1)  
AMM 12-11-01/301, Fuel Servicing

 (2)  
AMM 28-25-00/201, APU Fuel Feed System

 (3)  
AMM 28-44-02/401, Fuel Measuring Stick Housing

 (4)  
AIPC 28-11-02, Fig. 1

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MAINTENANCE MANUAL

FLOATING

ACCESS DOOR
NOTE:STANDARD DOOR SHOWN HIGH IMPACT RESISTANT DOOR SIMILAR

Reserve and Main Tank Access Door Installation Figure 402
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MAINTENANCE MANUAL

FWD

NOTE:  TORQUE THE MOUNT BOLTS IN THE SEQUENCE SHOWN BY THE NUMBERS. THIS WILL MAKE SURE FUEL DOES NOT LEAK AROUND THE ACCESS PANEL.
Access Door Bolt Torque Pattern
Figure 403

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L51189
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747-400
MAINTENANCE MANUAL

FUEL TANK  FUEL QUANTITY LBS KGS  WING ACCESS DOOR NUMBER 
MAIN 2 OR MAIN 3  7800 3538  544AB 644AB 
24000 10866  544AB 545AB 644AB 645AB 
1995844000  545BB 545AB 544AB 645BB 645AB 644AB 
63000 28576  545DB 645DB 
545CB 645CB 
545BB 645BB 
545AB 645AB 
644AB544AB 
MAIN 1 OR MAIN 4  7500 3402  646AB546AB 
　
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