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CES Subtask 49-00-00-865-099
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________ Subtask 49-00-00-740-052
A. Self-Test of the ECB
WARNING : MAKE SURE THAT THE TRAVEL RANGE OF THE AIR-INTAKE SYSTEM
_______ COMPONENTS IS CLEAR. MOVEMENT OF AIR-INTAKE SYSTEM COMPONENTS CAN CAUSE INJURY AND/OR DAMAGE.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the MCDU: On the MCDU:
-push the pushbutton switch - the APU page is shown.
adjacent to the APU indication.
2. On the MCDU: On the APU SYSTEM SELF-TEST page:
-push the pushbutton switch - the TEST OK is shown if the ECB is adjacent to the SYSTEM serviceable. SELF-TEST indication.
5. Close-up
________ Subtask 49-00-00-860-094
A. Aircraft Maintenance Configuration
(1)
On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2)
On the overhead panel 25VU, release the APU MASTER SW p/bsw (the ON legend goes off).
(3)
De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
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CES TASK 49-00-00-870-003
Purging of the APU Fuel System (131-9(A))
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
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific container 10 l (2.6416 USgal)
No specific access platform 3.5 m (11 ft. 6 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 24-42-00-861-001 Energize the Ground Service Network from the External
Power 28-00-00-910-001 Fuel Safety Procedures 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
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CES 3. Job Set-up
__________ Subtask 49-00-00-941-070
A. Safety Precautions
(1)
Obey the Fuel Safety Procedures (Ref. TASK 28-00-00-910-001). Subtask 49-00-00-860-109
B.
Aircraft Maintenance Configuration
(1)
Energize the ground service network
(Ref. TASK 24-42-00-861-001).
(2)
On the panel 25VU, make sure that the APU MASTER SW p/bsw is OFF.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that ground fire extinguishing equipment is available.
(5)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-00-00-865-100
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-00-00-010-065
D. Get Access
(1)
Put the access platform in position below the APU access doors 315AL and 316AR.
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