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).
Subtask 29-24-15-941-051
B. Safety Precaution
(1)
Put warning notice(s) on the access door 121AL to tell persons not to connect the external power connector.
(2)
In the cockpit, on the overhead panel 35VU, make sure that these pushbutton switches are released:
-APU GEN,
-1 BAT 2,
-GEN 1, GEN 2,
-EXT PWR.
(3)
In the cockpit, put warning notice(s) to tell persons not to operate the pushbutton switches on these overhead panels:
-21VU (EMER ELEC PWR),
-25VU (APU),
-35VU (ELEC)
(4)
Remove the access cover (1) from the panel 107VU.
(Ref. Fig. 401/TASK 29-24-15-991-001)
Subtask 29-24-15-010-050
C. Get Access
(1)
Put the access platform at zone 121.
(2)
Put the access platform at zone 126.
(3)
Open the access door 822.
4. Procedure
_________
(Ref. Fig. 401/TASK 29-24-15-991-001) Subtask 29-24-15-020-051
A. Removal of the Yellow Electric Pump Current Transformer
(1)
Disconnect the electrical connector (9) from the transformer (7).
(2)
Put blanking caps on the disconnected electrical connector (9) and on the electrical connector of the transformer (7).
(3)
Identify the electrical wires (8).
(4)
Remove the nuts (3), the washers (4) and disconnect the electrical
wires (8) from the contactor (2).
(5)
Remove the screws (5) and the washers (6).
(6)
Pull and release the transformer (7) from the electrical wires (8) and remove it.
Yellow Electric Pump Current Transformer
Figure 401/TASK 29-24-15-991-001
1EFF : ALL 1 29-24-15 Page 403
1 1 Feb 01/98
1 1
1CES 1
TASK 29-24-15-400-001
Installation of the Yellow Electric Pump Current Transformer (3807GX)
WARNING : ISOLATE ALL THE AIRCRAFT ELECTRICAL CIRCUITS.
_______
CAUTION : MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT
_______ R THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notice(s)
No specific access platform 2.06 m (6 ft. 9 in.)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
29-24-00-710-002 Operational Test of the Phase Unbalance Detector 3808GX and the Current Transformer 3807GX of the Yellow Hydraulic System
29-24-15-991-001 Fig. 401
3. Job Set-up
__________
Subtask 29-24-15-860-051
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 access platform is in position at the zone 121.
(3)
Make sure that the access platform is in position at the zone 126.
(4)
Make sure that the access door 822 is open.
(5)
Make sure that the access cover (1) is removed. Subtask 29-24-15-941-052
B.
Safety Precautions
(1)
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.
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