(4)
 Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).

 (5)
 Pressurize the Green hydraulic system from the Yellow hydraulic system through the PTU with the electric pump (Ref. TASK 29-23-00-863-001).

 (6)
 If you bleed after rupture of the hydraulic line, you must do the reactivation of the Normal Brake Safety Valve (Ref. TASK 32-42-36-860-001).

 Subtask 32-42-00-941-054
 B. Safety Precaution
 (1) Put the warning notice in position to tell persons not to operate the landing gear.
 1EFF : ALL 1 32-42-00Page 303 1 1 Aug 01/05R 1 1 1CES 1

 Subtask 32-42-00-865-054
 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 
R  **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
 4. Procedure_________
 (Ref. Fig. 301/TASK 32-42-00-991-003)
 Subtask 32-42-00-870-052
 A. Bleed the Normal Braking System
 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES._______
 WARNING : DO NOT LET OIL STAY ON YOUR SKIN FOR A LONG TIME AS IT CAN_______ CAUSE INJURY.
 WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:_______ - FLUSH IT AWAY WITH CLEAN WATER - GET MEDICAL AID.
 NOTE : Bleed port for the normal brake system (Green Hydraulic System) is____ the aft bleed port.

 1EFF : ALL 1 32-42-00Page 304 1 1 Aug 01/05 1 1 1CES 1

 Normal Braking System - Bleeding Figure 301/TASK 32-42-00-991-003
 1EFF : 1 1R 1CES  ALL  1 11 1 32-42-00 Page 305 Nov 01/99

 (1)
 Remove the bleed screw plug from the related brake unit.

 (2)
 Connect a vinyl hose and put one end in a container that contains HYDRAULIC FLUIDS (Material No. 02-003).

 (3)
 Moderately push down the brake pedal related to the brake to be bled.

 (4)
 Slowly loosen the bleed screw to get a smooth flow of fluid. Let the fluid flow until it has no air bubbles.

 NOTE : The safety valve can close if there is too much flow of
____ hydraulic fluid during the bleeding operation.
 (5)
 Keep the pressure on the brake and tighten the bleed screw.

 (6)
 Release the brake pedal.

 (7)
 If it is necessary, do the operations again until all the air is removed from the braking system.

 (8)
 Disconnect the vinyl hose. Remove all signs of the fluid from the bleed screw.

 (9) Install the bleed screw plug. **ON A/C ALL Post SB 32-1190 For A/C 001-002,051-052, Subtask 32-42-00-870-053
 B. Bleeding of the Normal-Brake Safety-Valve P/N C25243002-2
 (Ref. Fig. 302/TASK 32-42-00-991-006)

 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 WARNING : DO NOT LET OIL STAY ON YOUR SKIN FOR A LONG TIME AS IT CAN

_______
 CAUSE INJURY.

 CAUTION : MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT
_______ STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.
 CAUTION : DO NOT PUSH THE BRAKEPEDALS WHILE YOU BLEED THE SAFETY VALVE.
_______ MOVEMENT OF THE PEDALS WILL INCREASE THE PRESSURE IN THE SAFETY VALVE AND WILL CAUSE DAMAGE TO THE SAFETY VALVE.
 1EFF : ALL 1 32-42-00Page 306 1 1 Aug 01/05R 1 1 1CES 1

 Normal Safety Valve P/N C25243002-2 - Bleeding Figure 302/TASK 32-42-00-991-006
 1EFF : 1 1R 1CES  ALL  1 11 1 32-42-00 Page 307 Nov 01/99

 NOTE : Do this bleeding procedure only when you have safety valve P/N
____ C25243002-2 installed on the system
 (1)
 Depressurize the Green and Yellow hydraulic system (Ref. TASK 29-23-00-864-001).

 (2)
 Depressurize the Green hydraulic reservoir (Ref. TASK 29-14-00-614-001).

 (3)
 Make sure that the PARKING BRK control switch is set to OFF.

 (4)
 Pressurize the Greeng hydraulic reservoir to between 0.5 bar (7.2518 psi) and 1 bar (14.5037 psi) (Ref. TASK 29-14-00-614-002).
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM LANDING GEAR 起落架6(115)