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CES
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied 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 31-32-00-860-001 Procedure to Get Access to the SYSTEM REPORT/TEST
Menu Page 49-00-00-860-008 APU Start by External Power (131-9(A)) 49-00-00-860-009 APU Shutdown by External Power (131-9(A)) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-51-17-991-002 Fig. 401
3. Job Set-up
__________
Subtask 49-51-17-860-054
A. 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)
Make sure that there is 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).
(5)
Make sure that the access platform is in position below the APU compartment.
(6)
Make sure that the APU access doors are open (Ref. TASK 52-41-00-010-001).
(7)
Make sure that the LIGHT control SW 11LJ is set to the ON position.
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CES Subtask 49-51-17-865-054
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________
(Ref. Fig. 401/TASK 49-51-17-991-002) Subtask 49-51-17-420-051
A. Installation of the Total Pressure Transducer
(1)
Remove the blanking plug from the APU port.
(2)
Lubricate the new packing (2) with OILS (Material No. 03-002).
(3)
Install the new packing (2) on the transducer (3).
(4)
Put the transducer (3) into the APU.
(5)
TORQUE the nut (1) to 0.45 m.daN (39.82 lbf.in)
(6)
Remove the blanking caps from the electrical connectors.
(7)
Connect the electrical connector (4) to the transducer (3). Subtask 49-51-17-865-055
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-51-17-710-052
C. Test
(1)
Energize the CFDS to get the SYSTEM REPORT/TEST page for the APU (Ref. TASK 31-32-00-860-001).
(2)
Set the APU MASTER SW 14KD to ON.
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CES (3) Do this Test.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the MCDU:
-
push the pushbutton adjacent to the APU indication.
-
push the pushbutton adjacent to the SYSTEM SELF-TEST indication.
2. On the MCDU:
-
push the pushbutton adjacent to the RETURN display.
-
push the pushbutton adjacent to the RETURN display.
-
push the pushbutton adjacent to the RETURN display.
On the MCDU:
-
the APU menu page comes on.
-
the APU SYSTEM SELF-TEST page comeson and shows the messageIN PROGRESS.
-
the message TEST OK comes on.
On the MCDU:
-
the APU menu page comes on.
-
the SYSTEM REPORT/TEST page comes on.
-
the CFDS page comes on.
(4)
Start and operate the APU. (Ref. TASK 49-00-00-860-008)
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