A320飞机维护手册 AMM LANDING GEAR 起落架7(67)

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 (4) Twist the lockwire and put it through the nearest locking hole you can get access to in the hexagonal head of the fixed half-coupling (2). Tighten the lockwire and twist it.
 (5) Remove the bleed screw plug (4) from the bleed screw (3).
 (6) Connect a vinyl hose to the bleed screw related to of the Yellow system and put the other end in a container that contains HYDRAULIC FLUIDS (Material No. 02-003).
 (7) Slowly loosen the bleed screw (3) to release hydraulic residual pressure from the brake.
 (8) Tighten the bleed screw (3).
 (9) Disconnect the vinyl hose.
 (10) Install the bleed screw plug (4) on the bleed screw (3).
 Subtask 32-43-00-910-050
 B. Precaution
 CAUTION : MAKE SURE THAT THE LOCKWIRE CANNOT WEAR DURING THE OPERATIONS_______ OF THE LANDING GEAR.
 Subtask 32-43-00-865-050
 C. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R  49VU L/G/Y BRK/PRESS/IND  61GG  C10 
R  **ON A/C 401-499, 
R  49VU ABCU &/Y BRK/PRESS IND  61GG  C10

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R  -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C ALL 
R R R R  121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY  4GG 3GG 1GG 2GG  M36 M35 M34 M33
 Subtask 32-43-00-860-056
 D. Aircraft Maintenance Configuration
 (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
 (2) Pressurize the Yellow hydraulic system with the Yellow electric pump (Ref. TASK 29-10-00-863-002).
 Subtask 32-43-00-710-050
 E. Test
 (1) Do this test.
 NOTE : During this test, make sure that:____ the Green hydraulic system is depressurized, or, on the panel 402VU, the A/SKID & NOSE WHEEL switch is set to OFF.
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. Push in fully the related brake pedals and hold them pushed in.  Make sure that there are no leaks onthe hydraulic pressure line you disconnected.
 2. Release the brake pedals.

 

 5. Close-up
________ Subtask 32-43-00-860-058
 A. Put the aircraft back to its initial configuration.
 (1)
 Depressurize the Yellow hydraulic system (Ref. TASK 29-10-00-864-002).

 (2)
 Make sure that the level of the hydraulic fluid is correct in the Yellow hydraulic reservoir. Add some hydraulic fluid if it is necessary.

 (3)
 De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).

 (4)
 Remove the warning notice(s).

 (5)
 Remove the ground support and maintenance equipment, the special and standard tools and all other items.

 (6)
 In the cockpit, install a temporary placard to tell the crew that the ALTERNATE BRAKING on the WHEEL 1 (2, 3, 4) is not operational.

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 TASK 32-43-00-440-001
 Reactivation of the Alternate Braking after disconnection of the Yellow Hydraulic Supply WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
 GEAR.

 WARNING : MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY
_______
 OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM.

 1. Reason for the Job
__________________
 Refer to the MMEL TASK: 32-44-01
 Alternate Braking - Yellow Brake System

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice(s)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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