29-11-00
ALL ú ú 01 Page 213 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 492-036
(4)
Connect the controlled air source to the manual bleed valve on the reservoir pressurization module.
S 862-037
(5)
Push the stem on the manual bleed valve into the pressurization module to pressurize the reservoir.
S 862-038
(6)
Adjust the pressure of the air supply to pressurize the reservoir to 46 (|1) psi.
NOTE: The air pressure lines between the pressurization module and
____ the reservoirs contain vent orifices. These orifices bleed air pressure from the lines after you the remove the air source. The check valves hold the air pressure in each reservoir.
S 092-039
(7)
After you pressurize the reservoirs, remove the controlled air pressure source from the manual bleed valve.
S 412-040
(8)
Close the left and right access doors, 193HL and 194ER, for the reservoir pressurization module (AMM 06-41-00/201).
TASK 29-11-00-862-053
6. Remove the Pressure from the Main Hydraulic Systems and Reservoirs__________________________________________________________________
A. Equipment
(1)
Reservoir Depressurization Valve Lock, B29002-1
B.
References
(1)
AMM 06-41-00/201, Fuselage Access Doors and Panels
(2)
AMM 06-43-00/201, Engine and Nacelle Strut Access Doors and Panels
(3)
AMM 32-00-15/201, Main Gear Door Locks
(4)
AMM 32-00-20/201, Landing Gear Downlocks
(5)
AMM 78-31-00/201, Thrust Reverser System
C.
Access
(1)
Location Zones 143/144 MLG Wheel Well 197 Wing to Body - Aft Lower Half (Left) 434/444 Nacelle Strut - Aft Fairing
(2)
Access Panels
197KL Central Hydraulic Service Center
434AL/444AL Hydraulic Bay
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
D. Remove the Pressure from the Main Hydraulic Systems
S 862-054
(1)
Stop the hydraulic power source which supplies pressure to the system.
