(10)
For the right system, close the access panel 444AL for the hydraulic bay in the aft strut (AMM 06-43-00/201).
S 412-091
(11)
For the center system, close the access panel 197KL for the central hydraulic service center (AMM 06-41-00/201).
S 612-086
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29-11-00
ALL ú ú 01 Page 218 ú Sep 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 412-092
WARNING:_______OBEY THE REMOVAL PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(12)
For the left or right system, remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
S 862-093
(13)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
E. Remove the Hydraulic Power When You Use an ACMP
S 862-094
(1)
For the left or right system, put the L or R HYD PUMPS - ELEC pump switch on the hydraulic control panel to the OFF position.
S 862-095
(2)
For the center system, put the C HYD PUMPS - ELEC 1 and 2 pump switches on the hydraulic control panel to the OFF position.
S 862-096
(3)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
F. For the Left or Right System, Remove the Hydraulic Power When You Use an Engine-Driven Pump (EDP)
S 862-097
(1) Stop the engine (AMM 71-00-00/201) or put the L or R HYD PUMPS ENG switch on the hydraulic control panel to the OFF position.
TASK 29-11-00-172-098
8. Flush the Hydraulic System__________________________
A. General
(1)
This procedure flushes the hydraulic system after you replace a defective hydraulic pump.
(2)
When you do this procedure, if you find bad contamination because of a damaged filter, then replace the case drain filter element again, after one week of usual operation. After two months of operation, replace all filter elements in the system.
(3)
If the contamination of the fluid is from a chemical source, replace the fluid and the filter elements.
B. References
(1) AMM 29-11-01/401, Left and Right System Alternating Current Motor Pump (ACMP)
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