(2)  S 862-059Remove the electrical power (AMM 24-22-00/201).
 (3)  S 862-057Make sure the airplane is electrically grounded (Ref 20-41-01/201).
 (4)  S 912-056Keep the oxygen away from hot exhaust, sparks, and flame.
 (5)  S 912-060Keep the oxygen away from flammable material such as fuel, paint, thinners, and cleaning solvents.
 (6)  S 912-057Make sure your hands, clothing, equipment, and tools are clean and free of petroleum products (Ref 35-00-00/701).
 (7)  S 912-058Put on clean, white, cotton gloves that are lint-free when you work on the oxygen system.
 (8)  S 792-059Use the approved leak detection compounds to do test.
 (9)  S 212-074Immediately rub off the leak detection compound with a clean cotton cloth.
 S 912-061

 (10) Make sure there is a sufficient flow of air through the work area when you work on the oxygen system.
 S 032-061
 WARNING: DO NOT USE GASKETS OR LUBRICANTS WHEN YOU CONNECT THE FITTINGS
_______ IN THE CREW OXYGEN SYSTEM. THE GASKETS OR LUBRICANTS CAN CAUSE A FIRE OR AN EXPLOSION WHEN THEY ARE NEAR PRESSURIZED OXYGEN.
 (11)
 When you install a component in the oxygen system, make sure you remove all the protective caps.

 S 212-062

 (12)
 Make sure the fittings are clean and free of contaminants, and thread chips.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 35-00-00
 ALL  ú ú 01 Page 202 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 912-063
 (13) Do not align the components with the B-nut. NOTE: If the components are aligned with the B-nut, a leak can
____
 occur and can cause a fire or an explosion.

 S 912-064
 (14) Do not tighten the fittings while the oxygen system is pressurized.
 S 862-069 CAUTION: DO NOT TIGHTEN THE SHUTOFF VALVE ON THE OXYGEN CYLINDER MORE
_______ THAN 25 POUND-INCHES. THIS CAN CAUSE DAMAGE TO THE SHUTOFF VALVE.
 (15) Close the shutoff valve on the oxygen cylinder slowly. NOTE: The shutoff valve can be tightened by your hand which is
____
 equivalent to 25 pound-inches.

 S 862-076
 WARNING:_______OPEN THE SHUTOFF VALVE ON THE OXYGEN CYLINDERS SLOWLY. HIGH TEMPERATURES CAN OCCUR WHICH CAN START AN IGNITION WITH THE OXYGEN. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE AIRPLANE AND EQUIPMENT.
 CAUTION: DO NOT TIGHTEN THE SHUTOFF VALVE ON THE OXYGEN CYLINDERS MORE
_______ THAN 25 POUND-INCHES. THIS CAN CAUSE DAMAGE TO THE SHUTOFF VALVE.
 (16) Open the shutoff valve on the oxygen cylinder:

 (a)  Slowly turn the shutoff valve until it is fully opened.
 NOTE:____ The shutoff valve can be closed by hand which is
 equivalent to 25 pound-inches.
 (b)  Close the shutoff valve one-fourth of a turn.
 (c)  Install a wireseal on the shutoff valve.
 NOTE:____ Use 22 SWG red copper wireseal (BICOSOL 22 SWG).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 35-00-00
 ALL  ú ú 01 Page 203 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 412-071
 CAUTION:_______ KEEP A GAP BETWEEN THE ELECTRICAL WIRING AND THE OXYGEN HOSES
 TO PREVENT CHAFFING.  THIS CAN CAUSE DAMAGE TO THE ELECTRICAL
 WIRING OR OXYGEN HOSES.

 (17) Keep a 2-inch gap between the oxygen hose and electrical wiring when the oxygen boxes and mask stowage boxes are closed.
 NOTE: If the gap is less than 2 inches, install a clamp hose around
____ the wiring as necessary to prevent chafing.
 S 412-072
 WARNING: DO NOT INSTALL THE LOW PRESSURE HOSES IN THE HIGH PRESSURE
_______ SYSTEM. THE OXYGEN HOSE COULD BURST OR CATCH FIRE.
 (18) Do not connect the low pressure oxygen hoses in the high pressure system.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 氧氣 OXYGEN(3)