A320飞机维护手册 AMM LANDING GEAR 起落架7(36)

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R  C. Electrical Bonding Resistance Test 
R R  (1) Use a Milliohmmeter Megger, Type BT51 to measure the bonding resistance between: 
R R R  (a) The MLG forward pintle bearing and the applicable brake manifold servo-valve connector shell. The bonding resistance must be less than 20 milliohms. 
R  (2) Connect the electrical connector (4) on the servovalve (1). 
R R  (3) If you installed the servovalve 15GG(16GG) connect the connector (4) on the servovalve 17GG(18GG).
 Subtask 32-42-48-860-055 
R  D. Aircraft Maintenance Configuration
 (1) Connect the isolation coupling of the PTU (Ref. TASK 29-23-00-860-002).
 (2) Pressurize the applicable hydraulic reservoirs (Ref. TASK 29-14-00-614-002).
 Subtask 32-42-48-865-052 
R  E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GG, 2GG, 3GG, 4GG, 1702GK.
 Subtask 32-42-48-870-050 
R  F. Bleed the Brakes
 (1) Bleed the applicable brakes (Ref. TASK 32-42-00-870-001).

 

 Subtask 32-42-48-710-050 R G. Test
 (1)
 Do an operational test of the normal brake system (Ref. TASK 32-42-00-710-001).

 (2)
 Make sure that there are no hydraulic leaks at the interface of the normal brake manifold and the servovalve.

 5. Close-up
________
 Subtask 32-42-48-942-051

 A. Removal of Equipment
 (1)
 Remove the safety barriers.

 (2)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (3)
 Remove the warning notice(s).

 (4)
 Remove the access platform(s).

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

 1EFF : ALL 1 32-42-48Page 411 1 1 Feb 01/03 1 1 1CES 1

 FLEX BAND BRAKE - NLG WHEEL - DEACTIVATION/REACTIVATION
_______________________________________________________ TASK 32-42-51-000-001 Removal of the NLG Wheel Flex Band Brake WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1. Reason for the Job
__________________
 Refer to the MMEL TASK: 32-42-06
 Normal Braking - Nose Wheels brake bands

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers No specific warning notice No specific access platform 2.06 m (6 ft. 9 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-10-00-864-001 Depressurize the Green Hydraulic System 32-22-00-010-001 Nose Gear Doors - Ground Doors Opening 32-42-51-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 32-42-51-010-050
 A. Get Access
 (1)
 Open the doors of the nose gear (Ref. TASK 32-22-00-010-001).

 (2)
 Put the access platform in position.

R 1EFF : 001-049, 051-061, 101-102, 201-202, 1 32-42-51Page 401 1 1 May 01/05 1 1 1CES 1 Subtask 32-42-51-860-051

 B. Aircraft Maintenance Configuration
 (1) Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001). Subtask 32-42-51-941-050
 C. Safety Precautions
 (1)
 Put a warning notice on the landing gear control lever to tell persons not to operate the landing gear.

 (2)
 Put the safety barriers in position.

 4. Procedure
_________
 (Ref. Fig. 401/TASK 32-42-51-991-001) Subtask 32-42-51-020-050
 A. Removal of the Brake Band/Spring Assy (6)
 (1)
 Remove the cotter pin (3), the nut (4) and the washer (2).

 (2)
 Remove the bolt (1), the washer (7) and disengage the brake band/spring assy (6).

 (3)
 Remove the spacer (5).

 (4)
 Remove the cotter pin (15), the nut (12), the washer (13) and the bolt (14).

 (5) Remove the brake band/spring assy (6). Subtask 32-42-51-020-051
 B. Removal of the Roller Assy (8)
 (1)
 Remove the two nuts (11) and bolts (10).

 (2)
 Remove the plate (9) and the roller (8).

R 1EFF : 001-049, 051-061, 101-102, 201-202, 1 32-42-51Page 402 1 1 May 01/05 1 1 1CES 1
　
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