28-21-01
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A
757
MAINTENANCE MANUAL

FUELING STATION 
SEE  A 
WING RIB 
WING 
LEADING  FUELING 
EDGE  ADAPTER 
SEE  C 
FUELING CONTROL 
PANEL, P28 
FUELING  SEE  B 
ADAPTER 
BODY 
(EXAMPLE) 
FUELING 
ADAPTER 
SEE  C 
FWD  INBD 
SEE  B 
ADAPTER  FUELING STATION
POPPET  8  A 
ASSEMBLY  5  2 
CAM  FUELING  POPPET 
ADAPTER  ASSEMBLY 
12  11  BODY 
FUEL 
O-RING 

3
DEFUEL
4 SCREW (6 LOCATIONS)
9  7  ADAPTER 
6  10  1  (6 LOCATIONS) SCREW 
SCREWS ON THE FUELING ADAPTER SEQUENCE TO TIGHTEN THE  FUELING ADAPTER 
B  C 
Figure 401 Fueling Adapter and Poppet Assembly Installation 

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 28-21-01
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A
757 MAINTENANCE MANUAL
 S 944-066
 (3)  
Disconnect the airplane battery and attach OPEN FUEL TANK - DO NOT CONNECT sign.

 S 944-067

 (4)  
Put ropes around the fueling station area and install DANGER - OPEN FUEL TANKS signs.

 S 864-068
 WARNING: DO THE DEACTIVATION PROCEDURE OF THE LEADING EDGE SLAT (AMM
_______ 27-81-00/201). IF THE LEADING EDGE SLAT OPERATES ACCIDENTALLY, IT CAN CAUSE INJURY.
 (5)  
Do the deactivation procedure of the leading edge slats (AMM 27-81-00/201).

 S 144-069

 (6)  
Open the fueling station door, 621GB (AMM 06-44-00/201).

 S 144-070
 WARNING: WAIT 90 MINUTES AFTER REFUELING THE AIRPLANE BEFORE YOU DRAIN
_______ THE REFUELING ADAPTER. IF YOU DRAIN THE REFUELING ADAPTER BEFORE 90 MINUTES, PRESSURIZED FUEL CAN CAUSE AN INJURY OR A FUEL LEAK.
 (7)  
Drain the remaining fuel from the refueling adapter.

 (a)  
Put a container (2 gallon, 7.57 liter) below the refueling adapter to catch the fuel.

 (b)  
Push the poppet valve installed in the refueling adapter in slowly.

 (c)  
Let the fuel drain from the refueling adapter and the refueling manifold.

 S 034-004
 (8)  
　
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