757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 1(123)

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 1)  Install the flowmeter in the pressure line between the left system ACMP and the ACMP pressure/case drain filter module.
 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.
 2)  Put the L HYD PUMPS ELEC pump switch to the ON position.
 (b)  If you use the hydraulic service cart, do these steps: 1) Open the access panel, 434AL, for the hydraulic bay in the aft strut (AMM 06-43-00/201).
 2)  Connect the service cart pressure and return lines to the left system ground power connections with a flowmeter installed in the cart pressure line.
 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.
 3)  Operate the hydraulic service cart to pressurize the left system to 3000 psi.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
 (2)  S 486-172If you use the multimeter technique do these steps: (a) Do these steps to install the multimeter and the clamp-on ac current probe: 1) Get access to the left system ACMP ELCU M10001 in the P32 panel.
 WARNING:  BE CAREFUL WHEN YOU INSTALL THE CLAMP-ON AC CURRENT PROBE INTO THE POWER PANEL. THE VOLTAGES IN THE POWER PANEL CAN KILL AND/OR CAUSE DAMAGE TO EQUIPMENT.
 2) 3)  Put the clamp-on ac current probe around one of the three wires which connect to the load side of the ELCU.Connect the multimeter to the clamp-on ac current probe.
 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.
 (b)  Put the L HYD PUMPS ELEC switch to the ON position.
 (3)  S 866-173Put the flap control lever on the control stand to the 1-unit detent.
 (4)  S 866-174Put the landing gear lever in the DOWN position.
 (5)  S 866-175Put the A/P ENGAGE L switch on the mode control panel on the P55 panel to CMD to engage the left system autopilot.
　
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