747-400 AMM 飞机维护手册 灯 LIGHTS(30)

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_______ SWITCH. THE INSTALLATION OF THE LENS CAP INTO THE SWITCH CAN OPERATE THE SWITCH AND CAUSE ITS SYSTEM TO OPERATE. THE ACCIDENTAL OPERATION OF A SYSTEM CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (6)  
Open the circuit breakers to all airplane systems controlled by the pushbutton switch and attach DO-NOT-CLOSE tags.

 S 032-051

 (7)  
Get access to the switch lamps:

 (a)  Make sure the switch is in the off position.
 CAUTION: DO NOT HOLD THE SWITCH LENS CAP WITH A TOOL OR THE LENS
_______ CAP CAN BE DAMAGED. REMOVE THE LENS CAP WITH YOUR FINGERS.
 (b)  Hold the lens cap with your fingers and pull it away from the pushbutton switch.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 962-012
 (8)  Replace the lamps in the lens cap as follows:
 (a)  Pull the lens cap away from the switch assembly.
 NOTE: The lens cap will be held by two retainer wires to
____ the switch. Do not remove the wires from the switch or the lens cap.
 (b)  
When the lens cap is fully extended, turn the cap 90 degrees to see the bottom of the lamps.

 (c)  
Replace the lamps.

 S 432-052
 (9)  Install the lens cap in the switch assembly:
 (a)  
When the lamp replacement is completed, push the retainer wires and the lens cap into the switch.

 (b)  
Make sure the pushbutton switch is in the off position.

 S 862-015
 (10) Close these circuit breakers and remove the DO-NOT-CLOSE tags:
 (a)  P6 Main Power Distribution Panel
 1) 6D19 P5 PB SW LTS
 2) 6F19 FLT DK LIGHTS PILOT MISC IND 1
 3) 6F20 FLT DK LIGHTS PILOT MISC IND 2
 4) 6F26 FLT DK LIGHTS F/O IND
 5) 6F27 FLT DK LIGHTS F/O IND DGTL DSPL
 6) 6L4 FLT DK LIGHT CAPT IND
 7) 6L5 FLT DECK LIGHT CAPT IND DGTL DSPL
 8) 6E20 FLT DK LIGHTS PANEL OVHD

 S 862-016
 (11)
 Close the circuit breakers for the system controlled by the switch and remove the DO-NOT-CLOSE tags.

 S 712-053

 (12)
 Do a test of the replaced lamps:

 (a)  Put the IND LTS switch on the P5 panel to the TEST position and hold it in that position.
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 ALL  ú ú 01 Page 203 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (b)  
Make sure the replaced indicator lamps come on.

 (c)  
Put the IND LTS switch to the BRT position.

 (d)  
Do not push the switch to do a check of the switch position lamps.

 NOTE: The test of replaced lamps in the switch must be done
____ with the applicable system test for that switch.
 S 862-021
 (13) Remove the electrical power if it is not necessary (Ref 24-22-00/201).
 TASK 33-12-03-962-065
 3. Diode/Fuse Card Replacement (Fig. 201)
___________________________
 A. Access
 (1)  Location Zone 200 Pilots Instrument Panels - Flight Compartment
 B. Procedure
 S 022-061
 (1)
Do the task in this procedure: "Master Module Removal".

 S 022-062

 (2)  
Remove the diode/fuse card.

 (a)  Pull away the diode/fuse card to disconnect it.
 S 422-063
 (3)  Install the new diode/fuse card.
 (a)  Push the new diode/fuse card in its position.
 S 422-064
 (4) Do the task in this procedure: "Master Module Installation".
 TASK 33-12-03-002-022
 4. Master Module Removal (Fig. 201)
_____________________
 A. References
 (1)  24-22-00/201, Manual Control
 B. Access
 (1)  Location Zone 200 Pilots Instrument Panels - Flight Compartment
　
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