(2)
SSM 33-44-02
C. Access
(1) Location Zone
300 Tail Cone
D. Procedure
S 424-030
(1) Do these steps to install the power supply:
(a) Put the power supply (1) in its position (6) and install the mounting screws (5).
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747-400 MAINTENANCE MANUAL
(b)
Connect the ground wire (2) and install the nut (3).
(c)
Connect the electrical connectors (4).
(d)
Replace the safety wire on the electrical connectors (4).
(e)
Remove the door support rods and close the APU doors.
S 714-031
(2) Do these steps to do a test of the power supply:
(a)
Supply electrical power (Ref 24-22-00/201).
(b)
Remove the DO-NOT-CLOSE tag and close this circuit breaker:
1) P6 Main Power Distribution Panel a) 6L32 ANTI COLL LTS WHITE
WARNING: DO NOT LET THE STROBE LIGHT FLASH DIRECTLY IN YOUR EYES.
_______ THE INTENSITY OF THE STROBE LIGHT CAN CAUSE DAMAGE TO YOUR EYES.
(c)
Put the STROBE switch on the P5 panel to ON.
(d)
Make sure the strobe light is on.
(e)
Put the STROBE switch on the P5 panel to OFF.
(f)
Make sure the strobe light is off.
E. Put the airplane back to its usual condition
S 864-024
(1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P83 panel
1) APU PRIMARY CONTROL
(b)
P6 Main Power Distribution Panel
1) 6F15 A/APU - ENG START PERF SOL PWR
(2)
Remove the DO-NOT-OPERATE tag from the APU switch.
(3)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
S 864-026
S 864-027
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747-400 MAINTENANCE MANUAL
UPPER AND LOWER BEACON LIGHT POWER SUPPLY - REMOVAL/INSTALLATION
________________________________________________________________
1. General
_______
A. This procedure contains these tasks:
(1)
A task for the removal of the power supply for the upper beacon light.
(2)
A task for the installation of the power supply for the upper beacon light.
(3)
A task for the removal of the power supply for the lower beacon light.
(4)
A task for the installation of the power supply for the lower beacon light.
TASK 33-44-09-004-001
2. Removal (Upper Beacon Light) (Fig. 401)
____________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 25-22-03/401, Upper Deck Ceiling Panel
(3)
AIPC 33-44-09 Fig. 2
(4)
SSM 33-44-01
B. Access
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