__________ Subtask 29-12-15-860-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the external power connector is not connected to the aircraft receptacle (20XG) (receptacle behind the access door 121AL).
(2)
Make sure that the warning notice(s) is (are) in position on the access door 121AL to tell persons not to connect the external power connector.
(3)
In the cockpit, on the overhead panel 35VU, make sure that these pushbutton switches are released:
-APU GEN,
-1 BAT 2,
-GEN1, GEN2,
-EXT PWR.
(4)
In the cockpit, make sure that the warning notice(s) to tell persons not to operate the pushbutton switches is (are) in position on these overhead panels:
-21VU (EMER ELEC PWR),
-25VU (APU),
-35VU (ELEC).
(5)
Make sure that the access platform is in position at the access door
822.
(6)
Make sure that the access door 822 is open.
4. Procedure
_________ (Ref. Fig. 401/TASK 29-12-15-991-001) Subtask 29-12-15-420-050
A. Installation of the Current Transformer
(1)
Engage the electrical wires (4) in their passages in the transformer (8).
(2)
Install the transformer (8) on its mount.
(3)
Install the washers (3) and the screws (2).
(4)
Connect the electrical wires (4) to the contactor (10).
(5)
Install the washers (12) and the nuts (11).
(6)
Install the clamp (5) on its mount with the washer (6) and the screw (7).
(7)
Remove the blanking cap from the electrical connector (9).
(8)
Connect the electrical connector (9) to the transformer (8). Subtask 29-12-15-860-052
B.
Preparation for the Test
(1)
Remove the warning notice(s).
(2)
On the overhead panel 35VU, push these pushbutton switches:
-APU GEN,
-GEN 1, GEN 2.
(3)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
Subtask 29-12-15-865-053
C. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 123VU B HYD/ELEC PUMP 2701GJ AB09
Subtask 29-12-15-710-050
D. Test
(1) Do the operational test of the transformer (Ref. TASK 29-12-00-710-002).
5. Close-up
________ Subtask 29-12-15-860-053
A. Put the aircraft back to its initial configuration
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 29-12-15-410-050
B. Close Access
(1)
Install the access cover (1) on the panel 107VU.
(2)
Close the access door 822.
(3)
Remove the access platform(s).
PRESSURE SWITCH - ELECTRIC PUMP (2074GJ) - REMOVAL/INSTALLATION
_______________________________________________________________
TASK 29-12-17-000-001 Removal of the Electric Pump Pressure-Switch (2074GJ) WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
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 cap No specific blanking plugs No specific circuit breaker(s) safety clip(s) No specific container No specific warning notice(s)
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