28-26-02
 ALL  ú ú 01 Page 402 ú May 28/99

A
757 MAINTENANCE MANUAL
 S 024-001
 (6)  Remove the defueling valve actuator.
 TASK 28-26-02-404-015
 3. Install the Defueling Valve Actuator (Fig. 401)
____________________________________
 A. References
 (1)  
AMM 06-44-00/201, Wings Access Panels and Doors

 (2)  
AMM 20-10-21/601, Electrical Bonding

 (3)  
AMM 24-22-00/201, Electric Power Control

 B.
Access

 (1)  
Location Zones
 621 Leading Edge to Front Spar (Right)
 733 Left MLG Oleo Door
 743 Right MLG Oleo Door

 (2)  
Access Panel
 621GB Fueling Control Panel (Right)

 C.
Procedure

 S 984-016
 (1)  
Move the manual override handle on the defueling valve actuator to the CLOSED position.

 S 424-002

 (2)  
Put the mating shaft of the defueling valve actuator on the adapter shaft of the defueling valve.

 S 214-004

 (3)  
Make sure the two teeth spaces on the adapter shaft align with the mating shaft of the defueling valve actuator.

 NOTE: The mounting feet on the defueling valve actuator
____ automatically align with the mounting points on the adapter plate.
 S 424-017
 (4)  
Attach the defueling valve actuator to the adapter plate with the actuator mounting screws.

 (5)  
Install the lockwire on the actuator mounting screws.

 (6)
Attach the electrical connector to the defueling valve actuator.

 (7)
Attach the bonding jumper to the defueling valve actuator.

 S 434-003
 S 434-018
 S 434-019
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-26-02
 ALL  ú ú 02 Page 403 ú May 28/99

A

757
MAINTENANCE MANUAL

 (8)  S 224-020Make sure the bonding resistance between the defueling valve actuator and the airplane structure is not more than 0.010 ohms (AMM 20-10-21/601).
 (9)  S 864-021Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P34 panel: (a) 34A9, FLNG VALVES
 S 864-022

 (10)
 Supply electrical power (AMM 24-22-00/201).

 S 014-005

 (11)
 Open the fueling station door, 621GB (AMM 06-44-00/201).

 S 864-023

 (12)
 Put the applicable DEFUEL RH or DEFUEL LH switch, on the fueling control panel, P28, to the OPEN position.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 燃油 CHAPTER 28 - FUEL 4(86)