S 032-005
 (1)  
Disconnect the remote sense tube from the valve at the primary metering section.

 (a)  
Put a cap on the remote sense tube.

 (2)  
Remove the valve screws from the airplane skin.

 (3)  
Remove the relief valve.

 (4)  
Remove the gasket from the valve.

 S 032-006
 S 022-007
 S 032-008
 TASK 21-32-01-402-009
 3.  Install the Positive Pressure Relief Valve (Fig. 201)__________________________________________
 A. Consumable Materials
 (1)  C00259 - Primer BMS 10-11, Type I
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 21-32-01
 ALL  ú ú 01 Page 201 ú Dec 20/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL

POSITIVE PRESSURE RELIEF VALVES

Positive Pressure Relief Valve Maintenance Practices
Figure 201 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 21-32-01
 ALL  ú ú 01 Page 202 ú Mar 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

BOLT (8 PLACES) GASKET
INTEGRAL SENSE LINE
SEE D
PRIMARY
METERING
SECTION

SEE C
FILTER
FILTER COVER
POSITIVE PRESSURE RELIEF VALVE
B
SEAL
REDUCER
SENSE LINE AIRPLANEELBOW SKIN
GASKET
POSITIVE PRESSURE RELIEF VALVE
INTEGRAL SENSE LINE
PRIMARY METERING SECTION D
C
Positive Pressure Relief Valve Maintenance Practices Figure 201 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 21-32-01
 ALL  ú ú 01 Page 203 ú Mar 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 (2)  
B00316 - Solvent - Aliphatic Naphtha, TT-N-95

 (3)  
C00584 - Primer BMS 10-79, Type II

 (4)  
A00247 - Sealant Chromate Type BMS 5-95

 (5)  
C00033 - Enamel BMS 10-60, Type II, Grey Gloss, Boeing Color 707

 (6)  
G00507 - Lintfree Cloth, commercially available

 B.
References

 (1)  
AMM 06-46-00/201, Entry, Service and Cargo Doors, Access Doors and Panels

 (2)  
AMM 25-50-02/401, Sidewall Lining

 C.
Access

 (1)  
Location Zone
 153 Aft cargo compartment (Left)

 D.
Install the relief valve.

 S 162-010
 (1)  
Use the solvent to remove the old sealant from the airplane skin. Do not use too much solvent.

 S 162-011

 (2)
Use a lintfree cloth to make the airplane skin clean and dry.

 S 392-037

 (3)  
Apply the sealant to the smooth side of the gasket.

 S 422-012

 (4)  
Put a new gasket and the relief valve into position against the airplane skin.

 (a)  
Make sure the holes in the valve and the gasket align with the holes in the airplane skin.

 S 432-013
 CAUTION:_______DO NOT GET ANY SEALANT INTO THE INTEGRAL SENSE TUBE. IF ANY SEALANT GETS INTO THE INTEGRAL SENSE TUBE, IT COULD CAUSE THE POSITIVE PRESSURE RELIEF VALVE TO FAIL.
 (5)  
Install the screws into the airplane skin.

 (a)  
Apply sealant to each screw before you install it.

 (b)  
Tighten each screw to 35 pound-inches

 S 822-014
 (6)  If the end of the integral sense tube is more than .02 inches past the airplane skin, then do the steps that follow:
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 空調 AIR CONDITIONING 1(112)