29-11-27
ALL ú ú 01 Page 405 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 864-038
(21)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 864-039
(22)
Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-27
ALL ú ú 01 Page 406 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757
MAINTENANCE MANUAL
RIGHT SYSTEM ISOLATED ALTERNATING CURRENT MOTOR PUMP (ACMP) PRESSURE SHUTOFF
____________________________________________________________________________ VALVE - REMOVAL/INSTALLATION
____________________________
1. General
_______
A. This procedure has two tasks. One task removes the shutoff valve for the pressure of the isolated alternating current motor pump (ACMP). The other task installs the shutoff valve.
TASK 29-11-28-004-001
2. Remove the Shutoff Valve (Fig. 401)
________________________
A. References
(1)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(2)
AMM 32-00-15/201, Landing Gear Door Locks
(3)
AMM 32-00-20/201, Landing Gear Downlocks
B. Access
(1) Location Zones
143/144 MLG Wheel Well
C. Consumable Materials
(1) D00054 Hydraulic System Lubricant - MCS 352
D. Procedure
S 494-002
(1) Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
S 494-003
WARNING: DO THE PROCEDURE IN AMM 32-00-15/201 TO INSTALL THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
S 864-004
(3)
Remove the pressure from the right hydraulic system and the reservoir (AMM 29-11-00/201).
S 864-005
(4)
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11K16, HYDRAULICS ELEC PUMP RIGHT
(b)
11K22, RESERVE BRAKE SOURCE
S 034-006
(5)
Disconnect the hydraulic lines from the shutoff valve.
S 034-007
(6)
Install caps on the hydraulic lines.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-28
ALL ú ú 01 Page 401 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
PRESSURE SHUTOFF VALVE FORWARD FAIRING
FOR THE ISOLATED ALTERNATING OF THE RIGHT WHEEL WELL
IN THE RIGHT SYSTEM CURRENT MOTOR PUMP (ACMP) SEE A
SEE B
BOLT (3 LOCATIONS)
FWD
BONDING JUMPER FORWARD FAIRING OF THE RIGHT WHEEL WELL
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