757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 1(13)

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 611FB Center Tank Access Door (Right)
 531AB Center Tank Access Door (Left)
 ú  631AB Center Tank Access Door (Right)
 ú
 C.  Replace the Electrical Bonding Jumper
 S 022-013
 (1) Remove the bonding jumper.
 (a) Keep all the parts necessary for the installation of the
 bonding jumper.
 S 422-014
 (2) For the bonding jumpers used to bond electrical equipment, follow
 the applicable installation procedure in the AMM.
 S 422-015
 (3) For the bonding jumpers used to bond mechanical equipment or tubing,
 install the new bonding jumper and hardware (SWPM 20-20-00)>
 (a) Make sure the mating surface(s) are correctly prepared.
 (b) Make sure the bonding jumper installation gives adequate
 clearance from the structure, tubing or all fuel system parts.
 NOTE: This will prevent abrasion.____
 S 282-016
 (4) Do the "Electrical Integrity Check of the Fuel System Bond Path"
 procedure.
 D.  Electrical Integrity Check of the Fuel System Bond Path
 NOTE: SWPM 20-20-00 defines the measurement processes necessary for____
 installation of electrical bonding hardware. The fuel sytem
 tubing and components often incorporate multiple electrical bonds
 in series between the component and the primary structure. The
 measurement of the tubing or component bond is a separate
 requirement.
 S 452-020
 (1) For the bonding jumper hardware installations, do the jumper
 resistance measurement for electrical integrity (SWPM 20-20-00).

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 28-00-00
 ALL  ú ú 01.1 Page 204 ú Sep 28/02

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757 MAINTENANCE MANUAL
 S 452-021
 (2)  
For the fuel system tubing or components, do the subsequent steps:

 S 452-022

 (3)  
Measure the total resistance from the tubing or components, to the adjacent primary structure.

 S 772-023
 (4) Make sure the resistance is not more than 0.10 ohms. ú ú TASK 28-00-00-282-024 ú5.ú Fuel System Static Bond Path, No. 1 Tank - Inspection ú A. References ú (1) AMM 28-11-00/201, Fuel Tanks ú (2) AMM 28-11-01/401, Main Tank Access Door ú (3) DWG 343N4001, Tubing Instl - Engine Fuel Feed System ú (4) DWG 344N4001, Tubing Instl - Fueling System ú (5) DWG 346N3001, APU Fuel Feed - Instl - Wing ú B. Access ú (1) Location Zones ú 541 Main tank - rib No. 5 to No. 17 (Left) ú 542 Main tank - rib No. 17 to No. 21 (Left) ú ú C. Procedure ú ú S 282-025 ú (1) For the area in the No. 1 main tank between rib No. 5 and rib ú No. 21, do these steps: ú (a) Remove the applicable access panels on the left wing ú (AMM 28-11-01/401). ú (b) Go into the No. 1 main tank (AMM 28-11-00/201). ú (c) Do this task for all bonding jumpers between rib No. 5 and rib ú No. 21: Inspection of the Electrical Bonding Jumpers in the ú Fuel System. ú 1) Refer to drawings 343N4001, 344N4001 and 346N3001 for ú bonding jumper locations.
　
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