(b)
If you use a hydraulic service cart to pressurize the system, do these steps: 1) Operate the service cart to decrease the left system
pressure to zero. 2) Remove the flowmeter from the service cart pressure line. 3) Again connect the service cart pressure line to the left
system ground power pressure connection.
S 086-189
(19) If you use the multimeter technique, do these steps:
WARNING: BE CAREFUL WHEN YOU REMOVE THE CLAMP-ON AC CURRENT PROBE FROM THE POWER PANEL. THE VOLTAGES IN THE POWER PANEL CAN KILL AND/OR CAUSE DAMAGE TO EQUIPMENT.
(a) Remove the clamp-on ac current probe from the wire at the ACMP ELCU in the P32 panel.
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(20) If the hydraulic system gross internal leakage check will continue with the center or right system, pressurize the left hydraulic system with a hydraulic service cart or the system ACMP (AMM 29-11-00/201).
H. Center Hydraulic System Gross Internal Leakage Check
S 486-191
(1) If you use the flowmeter technique, do these steps:
(a) Open the access door, 197KL, for the central hydraulic service center (AMM 06-41-00/201).
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MAINTENANCE MANUAL
(b) If you use an ACMP to pressurize the system, do these steps:
1) Install the flowmeter in the pressure line between the center system ACMP C1 and the ACMP C1 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 C HYD PUMPS ELEC 1 pump switch to the ON position.
(c) If you use the hydraulic service cart, do these steps:
1) Connect the service cart pressure and return lines to the center 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.
2) Operate the hydraulic service cart to pressurize the center system to 3000 psi.
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本文链接地址：757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 1(125)
