clear of the base assembly. 3) Push up on the diode/fuse card assembly to remove it. 4) Remove and keep the cover from the diode/fuse card.
(b)
Install the new diode/fuse card. 1) Install the cover on the new diode/fuse card. 2) With the index points aligned, put the diode/fuse card
assembly into the drawer assembly. 3) Carefully push down the front end of the diode/fuse card assembly until you hear a click.
S 432-059
(4) Carefully push in the lens cap assembly.
(a)
Turn up the lens cap.
(b)
Push the lens cap assembly straight back until it locks into its position.
S 862-021
(5) Close these circuit breakers and remove the DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) 6F19 FLT DK LIGHTS PILOTS MISC IND 1
2) 6F20 FLT DK LIGHTS PILOTS MISC IND 2
3) 6F26 FLT DK LIGHTS F/O IND
4) 6F27 FLT DK LIGHTS F/O IND & DIG DISP
5) 6L4 FLT DK LIGHT CAPT IND
6) 6L5 FLT DK LIGHT CAPT IND & DIG DISP
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747-400 MAINTENANCE MANUAL
S 712-022
(6) Do a test of the indicator light:
(a)
Supply electrical power (Ref 24-22-00/201).
(b)
Put the IND LTS switch on the P5 panel to the TEST position.
(c)
Make sure the indicator light with the new diode/fuse card comes on.
(d)
Put the IND LTS switch to the BRT position.
(e)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
TASK 33-12-02-002-035
4. Indicator Light Removal (Fig. 201)_______________________
A. References
(1)
24-22-00/201, Manual Control
(2)
SSM 33-12-01
B. Access
(1) Location Zone 200 Flight Compartment, Pilots' Instrument Panels
C. Removal Procedure
S 862-036
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel 1) 6F19 FLT DK LIGHTS PILOTS MISC IND 1 2) 6F20 FLT DK LIGHTS PILOTS MISC IND 2 3) 6F26 FLT DK LIGHTS F/O IND 4) 6F27 FLT DK LIGHTS F/O IND & DIG DISP 5) 6L4 FLT DK LIGHT CAPT IND 6) 6L5 FLT DK LIGHT CAPT IND & DIG DISP
(2)
Get access to the rear of the indicator.
S 032-038
(3)
Disconnect the electrical wires from the contacts on the rear of the indicator light.
S 012-037
(a) Use the correct tool from table 201.
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~.................................................................. | CONTACT WIRE | TOOL PART | | BARREL SIZE | NUMBER | .................................................................... | 22 | M83723/31-20 | .................................................................... | 20 | M83723/31-20 | .................................................................... | 16 | M83723/31-16 | .................................................................... | 12 | M83723/31-12 | 2...................................…..............................1
Insertion/Removal Tools Table 201
(b) Identify the wires to aid during the installation of the indicator light.
S 022-072
CAUTION:_______USE ONLY YOUR FINGERS TO PULL OUT THE LENS CAP ASSEMBLY. TOOLS CAN CAUSE DAMAGE TO THE LENS CAP.
(4) Carefully pull out the lens cap assembly.
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