747-400 AMM 飞机维护手册 SERVICING 1(38)

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_______ EQUIPMENT WHEN YOU DO THE SERVICING OF THE HYDRAULIC RESERVOIRS. DAMAGE TO THE HYDRAULIC SYSTEM CAN OCCUR.
 (7)  Connect the ground servicing cart to the pressure fill connection.
 NOTE: All currently qualified BMS 3-11, Type IV hydraulic
____ fluids are interchangeable and intermixable in any proportion.
 S 613-141
 WARNING: CARE SHOULD BE TAKEN NOT TO OVERFILL THE HYDRAULIC RESERVOIR.
_______ OVERFILL CAN CAUSE HYDRAULIC FLUID TO ENTER THE PNEUMATIC DUCTING AND THE AIR CONDITIONING PACKS RESULTING IN SMOKE AND NOXIOUS FUMES ENTERING THE FLIGHT DECK AND PASSENGER CABIN. REPEATING HYDRAULIC CONTAMINATION OF THE PNEUMATIC SYSTEM CAN ALSO RESULT IN DAMAGE TO TITANIUM DUCTS.
 (8)  Do the steps that follow for each reservoir that you must fill:
 (a)  Turn the selector valve handle to the number of the hydraulic system which you will fill.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 CAUTION: DO NOT APPLY MORE THAN 150 PSI WHEN YOU DO THE SERVICING
_______ OF THE HYDRAULIC RESERVOIR. DAMAGE TO THE RESERVOIR CAN OCCUR.
 (b)  Start and operate the hydraulic service cart.
 NOTE: Fluid pressures much less than the recommended
____ maximum of 150 psi can cause the reservoir to fill slowly.
 (c)  Fill the reservoir to the full level as follows:
 1)  While you fill the reservoir, monitor the hydraulic quantity on one of the items which follow: a) The hydraulic quantity indicator in the wheel well. b) The hydraulic page of the EICAS which shows the
 hydraulic quantity. 2) Stop when the reservoir fill indicator is in the green band or when the EICAS display shows .80 to 1.10.
 3)  Make sure the OF, RF, or LO indication does not show on the EICAS maintenance page adjacent to the HYD QTY (1, 2, 3, 4).
 S 863-058
 (9)  Do the steps which follow to operate the flight controls, if one of these conditions occur:
 -
if you do not do the usual servicing.

 -
if you replace a system component and the task does not operate the flight controls.

 (a)  
Supply hydraulic power with the demand pump (AMM 29-11-00/201).

 (b)  
Operate all the flight control surfaces through a minimum of four full cycles.

 (c)  
Remove the hydraulic power (AMM 29-11-00/201).

 S 863-050
 (10)
 Turn the selector valve handle to the CLOSED position.

 (11)
 Stop the operation of the ground servicing cart.

 (12)
 Disconnect the ground servicing cart.

 (13)
 Install the pressure filler cap.

 S 863-036

 (14)
 Remove the hydraulic power if it is not necessary (AMM 29-11-00/201)

 S 863-051
 S 093-035
 S 413-042
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 ALL  ú ú 01 Page 308 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 863-037
 (15) Remove the electrical power if it is not necessary
 (AMM 24-22-00/201).

 TASK 12-12-01-863-080
 4.  Transfer of Hydraulic Fluid Between Systems___________________________________________
 A. Consumable Materials
 (1)  D00153 Fluid - Hydraulic, Fire Resistant, BMS 3-11
 B. References
 (1)  
AMM 09-11-00/201, Towing Taxiing

 (2)  
AMM 12-15-09/301, Hydraulic Brake Accumulator

 (3)  
AMM 24-22-00/201, Manual Control

 (4)  
AMM 29-11-00/201, Main Hydraulic Supply System

 C. Access
 (1)  Location Zone
 137A Body Landing Gear Wheel Well, LH

 D. Procedure
 S 863-081
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 863-082

 (2)  
Make sure the airplane is in the correct configuration:

　
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