(b)  
Open these circuit breakers and attach the DO-NOT-CLOSE tags:

 1)  P6-5 Load Control Center Assembly a) APU CONT b) APU Generator Control Unit
 S 014-003
 (2) Open the access door to the electronic equipment compartment.
 S 024-004
 CAUTION: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO REMOVE
_______ THE APU CONTROL UNIT. A FAILURE TO DO THE STEPS CORRECTLY CAN CAUSE DAMAGE TO THE EQUIPMENT.
 (3)  Do these tasks to remove the APU control unit:
 (a) "Rack Mounted E/E Box Removal" (AMM 20-10-07/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-61-11
 ALL  ú ú 02 Page 401 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////

APU CONTROL UNIT  APU CONTROL UNIT

2
APU CONTROL UNIT WITHOUT THE

"TEST PASS" AND "TEST FAIL" LIGHTS
APU CONTROL UNIT WITH THE "TEST PASS" AND "TEST FAIL" LIGHTS
APU Control Unit Installation Figure 401
A10797
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-61-11
 ALL  ú ú 02 Page 402 ú Mar 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b) "ESDS Metal Encased Units Removal" (AMM 20-40-12/201).
 TASK 49-61-11-404-005
 3.  APU Control Unit Installation (Fig. 401)
_____________________________
 A.  References
 (1)  
AMM 20-10-07/201, E/E Rack Mounted Components

 (2)  
AMM 20-40-12/201, Electrostatic Discharge Sensitive Devices

 (3)  
AMM 49-11-00/501, APU Power Plant

 B.  Access
 (1)  
Location Zones
 101 Control Cabin (Left)
 205 Electronic Compartment

 (2)  
Access Panels
 1201 Electronic Equipment Access Door

 C.  Procedure
 S 424-006
 CAUTION: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO INSTALL
_______ THE APU CONTROL UNIT. A FAILURE TO DO THE STEPS CORRECTLY CAN CAUSE DAMAGE TO THE EQUIPMENT.
 (1)  Do these tasks to install the APU control unit:
 (a)  
"Rack Mounted E/E Box Installation" (AMM 20-10-07/201).

 (b)  
"ESDS Metal Encased Units Installation" (AMM 20-40-12/201).

 S 864-008
 (2)  Set the circuit breakers and the switch:
 (a)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 1)  P6-5 Load Control Center Assembly a) APU Generator Control Unit b) APU CONT

 (b)  
Remove the DO-NOT-OPERATE tag from the APU master switch on the P5 forward overhead panel.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-61-11
 ALL  ú ú 01 Page 403 ú Mar 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
(3)  S 714-009Do the APU operation test (AMM 49-11-00/501): (a) Do the APU fire shutdown (AMM 49-11-00/201) to stop the APU.
 NOTE:____ Use one of the two fire handles to do a test of the circuit through the APU control unit.
 (4)  S 414-007Close the access door to the electronic equipment compartment.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-61-11
 ALL  ú ú 01 Page 404 ú Mar 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 AIRBORNE AUXILIARY POWER 2(106)