A320飞机维护手册 AMM SERVICING 1(54)

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R  valve of the nitrogen source to release nitrogen pressure and 
R  clean the system. 
R  (d) Close the control valves (20) and (13). Connect the filling hose 
R  (11) to the FILLING ASSEMBLY. 
R  (e) Open the control valve (20). 
R  (f) Lower the trolley jack to let the shock absorber extend fully. 
R  (g) Slowly open the control valve (6) to increase the nitrogen 
R  pressure. Let the shock absorber gradually inflate until it is 
R  fully inflated. 
R  (h) Use a thermometer (-45 Deg. C to 70 Deg. C (-49 Deg. F to 158 
R  Deg. F)) to measure and record the ambient temperature adjacent 
R  to the charging valve (6) of the NLG. Read and record the 
R  pressure on the gage (10) and refer to the pressure/temperature 
R  table for the related shock absorber inflation pressure. 
R  (Ref. Fig. 303/TASK 12-12-32-991-021) 
R  (i) Close the charging valve (6) and the control valve (20). 
R  (j) Wait for a minimum of ten minutes to let the pressure become 
R  stable, then open the control valve (20) and the charging valve 
R  (6). Make sure that the pressure/temperature conditions are the 
R  same as in step (h), if not, do again steps (g) thru (i). 
R  (k) Close the charging valve (6) and the control valve of the 
R  nitrogen source. 
R  (l) Slowly open the control valve (13) to release the nitrogen 
R  pressure from the filling system. 
R  (m) Remove the filling hose (11) and the FILLING ASSEMBLY from the 
R  charging valve (6).

 

R R  NLG Shock Absorber - Pressure Table Figure 303/TASK 12-12-32-991-021
 1EFF : 1 1 1CES  ALL  1 111 12-12-32 Page 318 Feb 01/05

 

R R  (n) TORQUE the charging valve (6) to between 0.5 and 0.8 m.daN (44.24 and 70.79 lbf.in) and check for leaks. 
R R (3) Install the blanking cap (7) on the charging valve (6). 
Subtask 12-12-32-942-060
 C. Removal of the Equipment
 (1) Disassemble the standard charging equipment.
 (2) Remove the trolley jack.
 (3) Remove the access platform(s).
 (4) Make sure that the work area is clean and clear of tool(s) and other items.
 Subtask 12-12-32-410-052
 D. Close Access
 (1) Remove the SAFETY PIN - NLG DOOR from the linkage of each forward NLG door (Ref. TASK 32-00-00-481-001).
 (2) Close the NLG doors (Ref. TASK 32-22-00-410-001).
 Subtask 12-12-32-869-053
 E. Ground Configuration
R R  (1) If you opened the LGCIU circuit breakers, make sure that the flight configuration precautions with electrical power were obeyed (Ref. TASK 32-00-00-860-001).
 Subtask 12-12-32-586-051
 F. Lower the Aircraft
 (1) Lower the aircraft onto its wheels (Ref. TASK 07-11-00-586-002).

 

 Subtask 12-12-32-780-052

 G. Pressure Check
 (1) Do a pressure/extension check of the NLG shock absorber (Ref. TASK
 12-14-32-614-004). R
 5. Close-up
________
 Subtask 12-12-32-942-061

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

 (2)
 Remove the warning notice(s).

 (3)
 Remove the ground support and maintenance equipment, the special and standard tools and all other items.

 

 TASK 12-12-32-611-002

 Replenishment of the Alternate Brake Reservoir (2624GM)
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
 -
THE FLIGHT CONTROLS

 -
THE FLIGHT CONTROL SURFACES

 -
THE LANDING GEAR AND THE RELATED DOORS

 -COMPONENTS THAT MOVE.
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 1. Reason for the Job__________________
 NOTE : This procedure will let you replenish the alternate brake reservoir.
____ But, if the reservoir is empty, you should do a bleed procedure of the complete system (Ref. TASK 32-43-00-612-001, Filling and Bleeding of the Low Pressure Control of the Alternate Braking).
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
　
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