737-300 400 500 AMM 飞机维护手册 液压 HYDRAULIC POWER(48)

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

 S 845-092
 (5)  Make sure that the vents are not plugged or corroded.
 (a)  If the vents are plugged or corroded, replace them with new
 vents.
 S 435-093
 (6)  Reinstall the vents.
 S 035-079
 (7)  Disconnect the two air pressure supply lines from the reservoir
 pressurization module inlet ports.
 S 035-080
 (8)  Remove the vents located between the reservoir pressurization module
 and the reservoir depressurization valves.
 NOTE:____ On airplanes reservoir balance lines there is only one vent.
 On airplanes with resevoir balance lines there are two vents.

 S 845-094
 (9)  Make sure that the vents are not plugged or corroded.
 (a)  If the vents are plugged or corroded, replace them with new vents.
 S 435-095
 (10)
 Keep two clean vents for re-installation.

 S 845-096

 (11)
 Replace the vents with BACC14AD04D caps for testing.

 S 485-081

 (12)
 Connect a nitrogen source to the manual bleed/air charge valve for manual air pressurization.

 NOTE: The valve is on the reservoir pressurization module.
____
 S 865-082
 (13) AIRPLANES WITH AN ALUMINUM, PLUNGER TYPE VALVE FOR MANUAL AIR PRESSURIZATION; Do these steps to slowly pressurize the reservoirs:
 (a)  
Push in the valve for manual air pressurization.

 (b)  
Adjust the pressure regulator for the nitrogen source until the relief valves for the hydraulic reservoirs open.

 (c)  
Make sure the two relief valves open at 60 to 65 psi.

 NOTE: Do not increase the pressure to more than 70 psi.
____
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737-300/400/500MAINTENANCE MANUAL
 S 865-083
 (14) AIRPLANES WITH A STEEL, SCREW-TYPE VALVE FOR MANUAL AIR PRESSURIZATION; Do these steps to slowly pressurize the reservoirs:
 (a)  Turn the nut on the valve for manual air pressurization.
 (b)  Adjust the pressure regulator for the nitrogen source until the
 relief valve for the hydraulic reservoir opens.
 (c)  Make sure the two relief valves open at 60 to 65 psi.
 NOTE:____ Do not increase the pressure to more than 70 psi.

 S 795-090
 (15) Apply MIL-L-25567C Type I liquid leak detector to both of the inlet ports on the reservoir pressurization module.
 NOTE: The mechanic may partially block the port before applying the
____ liquid leak detector if it is deemed necessary in order to achieve film coverage across the port.
 S 875-098
 (16)
 Make sure no air is coming out of the open inlet ports on the reservoir pressurization module.

 S 905-097

 (17)
 If a bubble forms, replace the pressurization module or remove and replace the leaking check valve(s).

 NOTE: Air leakage can be identified by bubbles that have formed in
____ the liquid leak detector.
 NOTE: Bubbles signify that the respective check valve in the
____ reservoir pressurization module is leaking.
 S 785-084
 (18)
 Make sure that the reservoir pressure is greater than 50 psi.

 S 865-085

 (19)
 If the pressure has dropped below 50 psi pressurize the reservoir to 50 psi.

 S 865-086

 (20)
 Close the shutoff valve for the nitrogen source.

 (21)
 Examine the reservoir line gages for the reservoirs A and B.

 S 785-104
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 785-099
 (22)
 Make sure the reservoir pressure does not decay more than 5 psi in five minutes.

 S 865-101

 (23)
　
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