A320飞机维护手册 AMM LIGHTS 灯光2(19)

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R  VDC. When the nose landing gear is downlocked, the power supply relays get a 
R  ground signal. When the control switch 4LR is in the TAXI position, the 
R  relay 6LR energizes and the taxi light 8LR comes on. 
R  With the switch 4LR in the T.O position, the relay 5LR energizes and 
R  continues to energize the relay 6LR. The taxi light 8LR and the take off 
R  light 7LR come on. 
R  When the nose landing gear is unlocked, the ground signal for the power 
R  supply relays is removed. 
R  The take off light and the taxi light go off. 
R  You can also switch off the lights with the switch 4LR in the OFF position.

 

 TAXI AND TAKE OFF LIGHTS - DEACTIVATION/REACTIVATION____________________________________________________
 TASK 33-46-00-040-001
 Deactivation of the Taxi Light (8LR)
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING_______ GEAR.
 1. Reason for the Job__________________
 Refer to the CDL TASK: 33-2 Taxi Light Lamp
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R  No specific No specific  circuit breaker(s) safety clip(s) soap solution 
R  B. Consumable Materials 
R R R  -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R R R  Material No. 05-065 Material No. 19-003  C Z-24.380 EROSION PROTECTIVE TAPE (Ref. 20-31-00) USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00) 
R  C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-46-12-000-001 33-46-12-400-001  Removal of the Taxi Light (8LR)Installation of the Taxi Light (8LR)

 

 3. Job Set-up__________
 Subtask 33-46-00-941-050
 A. Safety Precautions
 (1) Put a warning notice on the EXT LT section of the panel 25VU to tell persons not to operate the taxi light.
 Subtask 33-46-00-865-051
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------122VU LIGHTING/EXT LT/TAXI AND TAKE OFF/TAXI 1LR W08
 4. Procedure_________
 Subtask 33-46-00-040-050
 A. Deactivation of the Taxi Light 
R  CAUTION : IF THE LAMP IS REMOVED, SAFETY THE WIRES WITH HIGH-SPEED TAPE._______ 
R R R  (1) You must remove (Ref. TASK 33-46-12-000-001) or replace (Ref. TASK 33-46-12-000-001) and (Ref. TASK 33-46-12-400-001) the taxi light if there are these two conditions: - if there are cracks on the front face, and - if there is movement of the parts of the front glass (the supporting structure does not hold them tightly). 
R R  (2) If you do not remove or replace the cracked taxi light, you can do an alternative repair as follows: 
R R  (a) Clean the surface of the taxi light lens with MISCELLANEOUS (Material No. 19-003) made moist with warm soap solution. 
R R  (b) Dry the surface of the taxi light lens with a clean MISCELLANEOUS (Material No. 19-003). 
R R  (c) Apply SPECIAL MATERIALS (Material No. 05-065) to cover the crack(s). 
R R  NOTE : Make sure that the tape is correctly installed and has no____ bubbles, wrinkles or tears in it.

 

 (d) Let the tape cure for 15 minutes minimum at a minimum temperature of 15 deg.C (59.00 deg.F).
 (3) If it is not necessary to replace the taxi light, write in the aircraft technical log that the taxi light is damaged.
 5. Close-up
________ Subtask 33-46-00-865-052 R A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and R tagged 1LR Subtask 33-46-00-942-053
 B. Put the aircraft back to its initial configuration.
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Remove the warning notice(s).

 

 TASK 33-46-00-440-001 Reactivation of the Taxi Light (8LR) WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
　
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