28-11-05
ALL ú ú 01 Page 402 ú May 28/99
A
757
MAINTENANCE MANUAL
(2)
Access Panels
194CL ECS Equipment Bay Access Door (Left)
194CR ECS Equipment Bay Access Door (Right)
541AB Main Tank Access Door (Left)
543AB Surge Tank Access Door (Left)
641AB Main Tank Access Door (Right)
643AB Surge Tank Access Door (Right)
D.
Procedure
S 014-007
(1)
For the drain valve in the main tank, remove the main tank access door 541AB or 641AB (AMM 28-11-01/401).
S 014-012
(2)
For the drain valve in the center tank,
open the ECS equipment bay access door 194CR or 194CL
(AMM 06-41-00/201).
S 014-008
(3)
For the drain valve in the surge tank, remove the surge tank access door 543AB or 643AB (AMM 28-11-03/401).
S 914-031
WARNING: OBEY THE FUEL TANK ENTRY PRECAUTIONS (AMM 28-11-00/201).
_______ FAILURE TO OBEY THE FUEL TANK ENTRY PRECAUTIONS CAN CAUSE INJURY OR DAMAGE.
(4)
Obey the fuel tank entry precautions (AMM 28-11-00/201).
S 024-032
(5)
To remove the drain valves in the main or surge tanks,
do the steps that follow:
(a)
Use the adapter to remove the valve body from the tank sump fitting.
(b)
Go into the applicable fuel tank and get access to the drain valve.
(c)
Remove the screw to open the flange on the drain valve.
(d)
Remove the flange with the flapper attached.
S 024-002
(6)
To remove the center tank drain valve,
do the steps that follow:
(a)
Disconnect the drain line from the drain valve.
(b)
Use the adapter to remove the valve body from the tank sump fitting.
(c)
Go into the center fuel tank and get access to the drain valve.
(d)
Remove the screw to open the flange on the drain valve.
(e)
Remove the flange with the flapper attached.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 2(3)
