W DOC AIRBUS | AMM A320F

Removal of the Yellow Electric Pump Current Transformer

TASK 29-24-15-000-001-A
Removal of the Yellow Electric Pump Current Transformer

WARNING: ISOLATE ALL THE AIRCRAFT ELECTRICAL CIRCUITS.
CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
FIN: 3807GX
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 2M (6 FT)
No specific
AR
CAP - BLANKING
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
121AL, 822
 C. Referenced Information
REFERENCE
DESIGNATION
F Yellow Electric Pump Current Transformer
3. Job Set-up
Subtask 29-24-15-860-050-A
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-A
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.
F Yellow Electric Pump Current Transformer
Subtask 29-24-15-010-050-A
C. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) at zone 121.
   (2) Put the ACCESS PLATFORM 2M (6 FT) at zone 126.
   (3) Open the access door 822.
4. Procedure
Subtask 29-24-15-020-051-A
A. Removal of the Yellow Electric Pump Current Transformer
   (1) Disconnect the electrical connector (9) from the transformer (7).
   (2) Put CAP - BLANKING 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.
[Rev.10 from 2021] 2026.04.01 00:26:58 UTC
"Aviabrain" 2025