E. Procedure
SUBTASK 24-21-51-420-001
(1) Do these steps to install the module [1]:
(a) Put the module [1] carefully into position in the P5 overhead panel.
(b) Tighten the quarter turn fasteners on the module [1].
(c) Remove the protective covers from the electrical connectors.
(d) Examine the electrical connectors for bent or broken pins, dirt and damage.
1) Clean or repair the electrical connectors if it is necessary.
(e) Connect the electrical connectors to the module [1].
(f) Push the P5 overhead panel up to the closed position and latch it.
F. Installation Test of the AC System Generator and APU Module
SUBTASK 24-21-51-710-001
(1) Do this task: Operational Test for the AC Generation and Control System,
TASK 24-21-00-700-803.
SUBTASK 24-21-51-700-001
(2) If the module [1] has a L-Wiper switch attached, do this task: Windshield Wiper System -
Operational Test, TASK 30-42-00-700-801.
SUBTASK 24-21-51-700-002
(3) Do the installation test for the Exhaust Gas Temperature (EGT) indicator:
(a) Remove the safety tags and close these circuit breakers:
F/O Electrical System Panel, P6-2
Row Col Number Name
B 19 C01344 APU FIRE SW POWER
F/O Electrical System Panel, P6-4
Row Col Number Name
A 14 C00033 AUX POWER UNIT CONT
(b) Remove the DO-NOT-OPERATE tag from the APU master switch on the P5 forward
overhead panel.
(c) Do this task: APU Starting and Operation, TASK 49-11-00-860-801.
1) Look at the EGT indicator on the P5 forward overhead panel.
2) Make sure that the EGT indicator shows a minimum of 482°F (250°C).
(d) If it is not necessary to do other tasks, do this task: APU Usual Shutdown,
TASK 49-11-00-860-802.
G. Put the Airplane Back to its Usual Condition
SUBTASK 24-21-51-710-002
(1) Do this task: Remove Electrical Power, TASK 24-22-00-860-812.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-21-51
Page 405
D633A101-ILF Oct 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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