757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 1(76)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

____ point to find the internal leak source.
 This method is to be used only after the tank is defueled and purged. If the leak area is cleaned after the detection procedure, any remaining dye will not affect the fuel tank or the engine.
 (a)  
Put the integral fuel tank leak tracing device in position near the external leak.

 (b)  
Use the integral fuel tank leak tracing device to add dye through the external leak.

 (c)  
Continue dye pressure until dye shows in the fuel tank.

 (d)  
Make a mark at the point where dye is first seen.

 (e)  
Remove the integral fuel tank leak tracing device.

 (f)  
Use a cloth and remove all the dye.

 TASK 28-11-00-796-188
 4.  Helitest Leak Detection Procedure_________________________________
 A. Equipment
 (1)  
HeliTest Wing Kit - Varian Vacuum Products, Inc. - 121 Hartwell Avenue, Lexington, MA 02173, Phone: 1-800-882-7426 (USA Only)

 (2)  
Scissors, razor or knife

 (3)  
Helium - compressed, industrial grade, standard cylinder

 (4)  
Regulator - pressure, and gage for helium cylinder

 (5)  
Ventilation equipment - positive and negative (if available), to evacuate helium

 (6)  
Compressed air, to blow dry areas

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-11-00
 ALL  ú ú 01 Page 629 ú Sep 28/99

A

757
MAINTENANCE MANUAL

 B. Consumable Materials
 (1)  
B01002 Solvent, General Cleaning of Solvent Resistant Organic Coatings (AMM 20-30-82/201 or SOPM 20-30-82) - Series 82

 (2)  
G50004 Tape, vacuum - SM5126 or SM5127

 (3)  
G00252 Material, Plastic Sheeting (polyethylene) - L-P-512

 (4)  
G02329 Tape, high speed - 3M #434

 C.
References

 (1)  
AMM 28-11-00/201, Fuel Tanks

 (2)  
AMM 28-11-00/801, Fuel Tanks

 (3)  
AMM 28-26-00/201, Defueling

 D.
Access

 (1)  
Location Zones
 133 Wing Center Section (Left)
 134 Wing Center Section (Right)
 531 Center Wing Tank (Left)
 541 Main Tank-Rib No. 5 to No. 17 (Left)
 542 Main Tank-Rib No. 17 to No. 21 (Left)
 543 Surge Tank-Rib No. 21 to No. 23 (Left)
 631 Center Wing Tank (Right)
 641 Main Tank-Rib No. 5 to No. 17 (Right)
 642 Main Tank-Rib No. 17 to No. 21 (Right)
　
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 燃油 CHAPTER 28 - FUEL 1(76)