S 796-398
(15)
After the initial quantity of fluid drains from the hose, make sure there is no fluid leakage through the check valve.
NOTE: If the ACMP C1 check valve has a leak, the fluid will
____
continue to drain from the pressure hose.
S 396-287
(16) If the ACMP C1 check valve has a leak, replace this check valve in the ACMP filter module (AMM 29-11-19/401).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
S 866-288
(17)
Remove the pressure from the center hydraulic system and reservoir (AMM 29-11-00/201).
S 866-289
(18)
Remove the cap from the ACMP C1 pressure port and install the pressure hose to the ACMP C1 (AMM 29-11-02/401).
H. Right Hydraulic System ACMP Check Valve Internal Leakage Check
S 866-388
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
_______ YOU SUPPLY THE HYDRAULIC POWER. THE AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN YOU SUPPLY THE HYDRAULIC POWER.
(1) Pressurize the right hydraulic system with the hydraulic service cart (AMM 29-11-00/201).
NOTE:____You can not use the system ACMP to do this step. You can motor the engine to supply hydraulic pressure with the EDP, to do a check of the ACMP low pressure light.
S 216-291
(2) Make sure the PRESS light for the right ACMP on the hydraulic control panel on the P5 panel is on.
NOTE: If there is a leak of system pressure through the check valve
____ in the ACMP filter module, the PRESS light will be off.
S 366-292
(3) If the PRESS light is off, replace the check valve in the right ACMP filter module (AMM 29-11-18/401).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
ALL ú ú 08 Page 679 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
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