W DOC AIRBUS | AMM A320F

Installation of the Contactor - Yellow Electric Pump Supply

TASK 29-24-55-400-001-A
Installation of the Contactor - Yellow Electric Pump Supply

WARNING: MAKE SURE THAT NO AC OR DC POWER IS CONNECTED TO THE AIRCRAFT ELECTRICAL CIRCUITS. THERE IS A RISK OF ELECTROCUTION IF THE AC OR DC POWER STAYS CONNECTED.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 3805GX
FIN: 3806GX
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.176 and 0.147 m.daN (15.58 and 13.01 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BBB1)
Non Aqueous Cleaner-- Petroleum Based -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
121AL, 822
 D. Referenced Information
REFERENCE
DESIGNATION
F Contactors - Yellow Electric Pump Supply (3805GX, 3806GX)
FOR [3805GX] (CONTACTOR)
TASK 29-24-55-700-001-A
Test of the Yellow Electric-Pump-Supply Contactor
FOR [3806GX] (CONTACTOR)
TASK 29-24-55-700-002-A
Test of the External Power-Supply Contactor of the Yellow Electric Pump
3. Job Set-up
Subtask 29-24-55-860-053-A
A. Aircraft Maintenance Configuration
   (1) 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.
   (2) Make sure that there is a WARNING NOTICE(S) in the cockpit to tell persons not to operate the pushbutton switches on these overhead panels:
  • 21VU (EMER ELEC PWR)
  • 25VU (APU)
  • 35VU (ELEC).
   (3) Make sure that the external power connector is not connected to the aircraft receptacle (20XG) (receptacle behind the access door 121AL).
   (4) Make sure that the warning notice on the access door 121AL to tell persons not to connect the external power connector.
   (5) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the access door 822.
   (6) Make sure that the access door 822 is open .
4. Procedure
Subtask 29-24-55-420-050-A
A. Installation of the contactor
   (1) Install the contactor (5) on the 6 tapped barrels (7) of the contactor base (2).
   (2) TORQUE the six captive screws (6) to between 0.176 and 0.147 m.daN (15.58 and 13.01 lbf.in ) T.
   (3) Remove the blanking cap from the electrical connector (4).
   (4) Examine the electrical connector (4) for dirt inside connector. If connector is dirty, clean it with a Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) .
   (5) Connect the electrical connector (4) to the receptacle (3).
Subtask 29-24-55-710-052-A
B. Operational test
   (1) Do the operational test of the contactor.
     (a) FOR [3805GX] (CONTACTOR)
(Ref. AMM TASK 29-24-55-700-001)
     (b) FOR [3806GX] (CONTACTOR)
(Ref. AMM TASK 29-24-55-700-002)
5. Close-up
Subtask 29-24-55-410-053-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the access door 822.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 00:27:09 UTC
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