(4)
AMM 28-26-02/401, Defueling Valve Actuator
C.
Access
(1)
Location Zones
531 Center Wing Tank (Left)
631 Center Wing Tank (Right)
(2)
Access Panels
531CB Center Tank Access Door (Left)
631CB Center Tank Access Door (Right)
D.
Procedure
S 034-036
(1)
Install a new O-ring (12) in the groove on the adapter plate (3).
S 424-037
(2)
Put the adapter shaft (1) through the hole in the rear spar.
S 944-038
WARNING:_______OBEY THE FUEL TANK ENTRY PRECAUTIONS. FAILURE TO OBEY THE FUEL TANK ENTRY PRECAUTIONS COULD CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3)
Obey the fuel tank entry precautions (AMM 28-11-00/201).
S 014-039
(4)
Go into the center fuel tank.
S 424-040
(5)
Engage the adapter shaft (1) with the valve body (10).
S 214-041
(6)
Make sure the adapter plate (3) moves freely in the opening of the rear spar.
S 434-005
(7)
Install the four adapter bolts (7) and washers (6) to attach the adapter plate (3) and adapter shaft (1) to the rear spar.
S 224-006
(8)
Make sure the bonding resistance between the adapter bolts (7) and the airplane structure is not more than 0.015 ohms (AMM 20-10-21/601).
(9)
Do this task: Adapter Shaft Alignment.
S 824-097
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A
757 MAINTENANCE MANUAL
S 414-011
(10) Close the applicable left or right center tank access door, 531CB or 631CB (AMM 28-11-02/401).
TASK 28-26-01-824-083
4. Adapter Shaft Alignment (Fig. 402)_______________________
A. Equipment
(1)
B28009-1, Adapter Shaft Alignment Tool
(2)
Torque meter - 0-15 inch-pounds, with a resolution of +/- 1 inch-pound (optional)
B.
References
(1)
AMM 28-26-02/401, Defueling Valve Actuator
C.
Access
(1)
Location Zones
531 Center Wing Tank (Left)
631 Center Wing Tank (Right)
D.
Procedure
S 014-084
(1)
Remove the defueling valve actuator if it is not removed (AMM 28-26-02/401).
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本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 4(79)
