(3)
Set the LIGHT control switch 11LJ to the on position.
4. Procedure
_________ (Ref. Fig. 401/TASK 49-51-00-991-001) Subtask 49-51-00-040-050
A. Deactivation of the APU Bleed Load Control-Valve (8050KM)
(1)
Make sure that the APU bleed load control-valve position-indicator on the valve body shows the CLOSED position.
(2)
Disconnect the control-valve solenoid-valve electrical plug and attach it to the aircraft structure with adhesive tape.
(3)
Put blanking caps on the disconnected electrical connectors.
(4)
Make sure that you put a warning notice in the cockpit to tell persons that the APU bleed load control-valve is isolated.
(5)
Make the following entry in the aircraft technical log: The APU bleed load control-valve is deactivated. The position indicator on the valve body shows the CLOSED position. Ignore the ECAM display which shows OPEN position.
5. Close-up
________ Subtask 49-51-00-410-050
A. Close Access
(1)
Set the LIGHT control SW 11LJ to the OFF position.
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s). Subtask 49-51-00-865-052
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD, 1HV.
Bleed Load Valve-Visual Position Indicator
Figure 401/TASK 49-51-00-991-001
CES Subtask 49-51-00-860-055
C. Aircraft Maintenance Configuration
(1)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
(2)
Pressurize the reservoirs of the hydraulic systems. (Ref. TASK 29-14-00-614-002).
(3)
Remove the warning notice(s).
TASK 49-51-00-440-001
Reactivation of the APU Bleed Load Control-Valve (8050KM) (GTCP 36-300)
WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
1. Reason for the Job
__________________
Refer to the MMEL TASK: 36-12-02
APU Bleed Air Supply and Cross Bleed
System - APU BLEED Valve
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access TSM 49
3. Job Set-up
__________ Subtask 49-51-00-860-056
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-51-00-865-051
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HV.
Subtask 49-51-00-010-053
C. Get Access
(1)
Put the access platform in position below the APU access doors 315AL and 316AR.
(2)
Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
(3)
Set the LIGHT control switch to the ON position.
4. Procedure
_________ Subtask 49-51-00-440-050
A. Reactivation of the APU Bleed Load Control-Valve (8050KM)
(1)
Remove the blanking caps from the electrical connectors.
(2)
Make sure that the electrical connectors are clean and in the correct condition.
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