A320飞机维护手册 AMM LANDING GEAR 起落架2(88)_航空信息_民用航空_通用航空

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R - THE LANDING GEAR AND THE RELATED DOORS
R - COMPONENTS THAT MOVE.
R WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING_______
R GEAR.
R 1. Reason for the Job__________________
R To remove the MLG lockstay actuating cylinder with the lockstay brace tool
R (DRT68864) installed. It is not necessary to lift the aircraft on jacks.
R 2. Job Set-up Information______________________
R A. Fixtures, Tools, Test and Support Equipment
R -------------------------------------------------------------------------------
R REFERENCE QTY DESIGNATION
R -------------------------------------------------------------------------------
R No specific blanking plugs
R No specific safety barriers
R No specific warning notice
R No specific container 1 l (0.2641 USgal)
R No specific access platform 2.5 m (8 ft. 2 in.)

R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R 24-41-00-862-002 R R 29-00-00-864-001 R R 29-14-00-614-001 R 29-23-00-860-001 R R 32-00-00-480-001 R R 32-00-00-481-001 R R 32-00-00-481-002 R R 32-00-00-860-001 R R 32-11-21-991-003
R 3. Job Set-up
__________
R Subtask 32-11-21-941-054
R A. Safety Precautions De-energize the Aircraft Electrical Circuits Supplied from the External Power Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action Depressurization of the Hydraulic Reservoirs Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) Installation of the Brace Tool on the Lockstay Actuator Installation of the Safety Devices on the Landing Gears Installation of the Safety Devices on the Landing Gear Doors Flight Configuration Precautions with Electrical Power Fig. 402
R (1) Make sure that the safety barriers are in position.
R (2) Make sure that the ground safety locks are installed on the landing R gear and the landing gear doors (Ref. TASK 32-00-00-481-001) and R (Ref. TASK 32-00-00-481-002).
R (3) On the panel 400VU: R - make sure that the landing-gear control-lever 6GA is in the DOWN R position R - make sure that a warning notice is in position to tell persons not R to operate the landing gear.
R (4) Make sure that a warning notice is in position to tell persons not to R pressurize the Green or Yellow Hydraulic system.
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R Subtask 32-11-21-860-056
R B. Aircraft Maintenance Configuration
R (1) Make sure that the isolation coupling of the PTU is disconnected
R (Ref. TASK 29-23-00-860-001).
R (2) Make sure that the Yellow and Green Hydraulic systems are
R depressurized (Ref. TASK 29-00-00-864-001).
R (3) Make sure that the applicable hydraulic system reservoir is
R depressurized (Ref. TASK 29-14-00-614-001).
R Subtask 32-11-21-869-057
R C. Flight Configuration Precautions
R (1) If the electrical power is not necessary for other maintenance tasks,
R de-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-
R 002). Then, it is not necessary to operate the LGCIU circuit
R breakers.
R (2) If the electrical power is necessary, do the precautions for flight
R configuration (Ref. TASK 32-00-00-860-001) before you open the LGCIU
R circuit breakers.
R Subtask 32-11-21-865-056
R D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and
R tagged
R -------------------------------------------------------------------------------
R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------
R 49VU L/G/LGCIU/SYS1/NORM 1GA C09
R 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35
R 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
R Subtask 32-11-21-010-052
R E. Get Access
R (1) Put an access platform below the applicable MLG lockstay actuating
R cylinder, at zone 731 or 741.
R (2) Put a container below the applicable actuating cylinder.