(3)
Remove the screw (6) and the washer (7) and disconnect the bonding jumper (8) on the ECB mount (12) and move the bonding jumper clear of the installation.
(4)
Remove the countersunk screws (9) from the ECB rack (5).
(5)
Remove the ECB rack (5).
(6)
Remove the bolts (10) and the washers (11) that attach the ECB mount
(12) to the structure.
(7)
Remove the ECB mount (12).
Mount - ECB Figure 401/TASK 49-61-53-991-002-A
R EFF : 106-106, 108-149, 221-221, 224-224, 49-61-53Page 403 228-228, 301-399, Config-3 Aug 01/05
CES
Mount - ECB R Figure 401A/TASK 49-61-53-991-002
R EFF : 211-220, 222-223, 225-227, 229-299, 49-61-53Page 404 Config-3 May 01/05
CES
TASK 49-61-53-400-002
Installation of the ECB Mount Assembly (APS 3200)
1.
Reason for the Job
__________________
Installation of the ECB Mount
2.
Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD) (APS 3200) 49-61-34-400-002 Installation of the Electronic Control Box (ECB) (59KD) (APS 3200)
3. Job Set-up
__________ Subtask 49-61-53-860-054
A. Aircraft Maintenance Configuration
(1)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(2)
Make sure there is a warning notice in the cockpit to tell persons not to start the APU.
(3)
Make sure that the access platform is below the AFT cargo-compartment door 826.
(4)
Make sure that the AFT cargo-compartment door 826 is open.
(5)
Make sure that the ECB (59KD) is removed (Ref. TASK 49-61-34-000-002).
4. Procedure
_________ Subtask 49-61-53-420-052
A. Installation of the ECB Mount
(1) Install the ECB mount (12) to the aircraft structure with the bolts
(10) and the washers (11).
NOTE : The ECB installation points forward in those aircraft that do
____ not have the optional BULK cargo door. Aircraft with the optional BULK cargo door, have the ECB installation pointed rearwards.
(2)
Install the ECB rack (5) to the mount (12) with the countersunk screws (9).
(3)
Connect the bonding jumper (8) to the ECB mount (12) with the washer
(7) and the bolt (6).
(4)
Install the electrical socket assembly (4) to the ECB rack (5) with the bolts (1) the washers (3) and the nuts (2).
5. Close-up
________ Subtask 49-61-53-410-051
A. Put the system back to the serviceable condition.
(1) Install the ECB (59KD) (Ref. TASK 49-61-34-400-002).
EMERGENCY SHUTDOWN - DESCRIPTION AND OPERATION
______________________________________________
R **ON A/C 001-003, 051-099, 401-499,
1. General
_______ The APU emergency shutdown-system stops the APU if an emergency occurs. The system is automatically activated on the ground if the APU fire and overheat detection system finds an overtemperature in the APU compartment (Ref. 26-13-00). You can also stop the APU manually from:
-
the cockpit,
-
the external power control panel on the nose landing gear (only when the aircraft is on the ground).
2. Component Location
__________________
(Ref. Fig. 001)
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------1KL P/BSW - APU SHUT OFF 108VU 123/ 124
3. System Description
__________________ (Ref. Fig. 002) The airborne auxilary power has an APU emergency shutdown-system. The Electronic Control Box (ECB) receives the emergency shutdown signal and stops the APU. An emergency shutdown occurs automatically, if the APU fire and overheat detection system finds an overtemperature in the APU compartment (Ref. 26-13-00). The manual emergency shutdown switches are:
-
the APU FIRE PUSH pushbutton switch 12WG on the overhead panel 20VU in the cockpit,
-
the APU SHUT OFF pushbutton switch 1KL at the fuselage of the nose landing gear, on the external power control panel 108VU (this is only available when the aircraft is on the ground).
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