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R  (3) Install the washers (11) and the studs (12) on the external power receptacle (10), then tighten the studs (Ref. TASK 20-21-15-912-001). 
R R  (4) Install the washers (6) and the 3 screws (2) and then tighten the screws (Ref. TASK 20-21-15-912-001).
 (5) Install the electrical wires (5). 
R R  (6) Install washers (4) and the nuts (3) and then tighten the nuts (Ref. TASK 20-21-15-912-001).
 (7) Install the protective cover (1). 
R R  (8) Install the washers (13, 15) and the nuts (14) and then tighten the nuts (Ref. TASK 20-21-15-912-001).
 Subtask 24-41-51-710-050
 B. Test of the External Power Supply
 (1) Make sure that the aircraft electrical circuits are correctly energized with the external power supply (Ref. TASK 24-41-00-861-002).
 5. Close-up________
 Subtask 24-41-51-862-050
 A. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).

 

 Subtask 24-41-51-410-050
 B. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Remove the warning notice(s).

 (3)
 Close the access door 811.

 (4)
 Close the access door 121AL.

 (5)
 Remove the access platform(s).

 

 CONTACTOR (3XG) - REMOVAL/INSTALLATION
______________________________________
 TASK 24-41-55-000-001
 Removal of the External Power Contactor (EPC)
 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.

 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 caps
 No specific warning notice(s)
 No specific access platform 0.5 m (1 ft. 8 in.)

 B. Referenced Information -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------25-11-41-000-001 Removal of the Third Occupant Seat **ON A/C 001-049, 051-062, 101-105, 151-152, 201-205,
 24-41-55-991-001 Fig. 401 R **ON A/C 063-099, 106-149, 153-199, 206-299, 301-399, 401-499,
 24-41-55-991-001-A Fig. 401AR **ON A/C ALL

 

 3. Job Set-up
__________
 Subtask 24-41-55-010-050

 A. Get Access
 (1)
 Remove the third occupant seat (Ref. TASK 25-11-41-000-001).

 (2)
 In the cokpit, remove the access panel (8) from the bottom left side of the panel 120VU.

 (3)
 Put an access platform at the access door 121AL.

 (4) Open the access door 121AL.
 Subtask 24-41-55-941-050

 B. Safety Precautions
 (1)
 Make sure that the external power connector is not connected to the aircraft receptacle.

 (2)
 Put warning notice(s) on the access door 121AL to tell persons not to use the external power receptacle.

 (3)
 In the cockpit, on the overhead ELEC panel 35VU, release these pushbutton switches:

 -BAT 1, BAT 2,
 -APU GEN,
 -GEN 1, GEN 2,
 -EXT PWR.

 (4)
 In the cockpit, put warning notice(s) to tell persons not to operate the pushbutton switches on these overhead panels:

 -21VU (EMER ELEC PWR),
 -35VU (ELEC).

 (5)
 In the cockpit, on the APU section of the overhead panel 25VU, put warning notice(s) to tell persons not to start the APU.

 

 4. Procedure
_________
 **ON A/C 001-049, 051-062, 101-105, 151-152, 201-205,

 (Ref. Fig. 401/TASK 24-41-55-991-001) R **ON A/C 063-099, 106-149, 153-199, 206-299, 301-399, 401-499,
 (Ref. Fig. 401A/TASK 24-41-55-991-001-A)
 **ON A/C ALL

 Subtask 24-41-55-020-050
 A. Removal of the Contactor CAUTION : REMOVE THE CONTACTOR ONLY AND NOT THE BASE OR THE MODULE WHERE
_______
 THE WIRES ARE CONNECTED.

 (1)
 Disconnect the electrical connector (1).

 (2)
 Put blanking caps on the disconnected electrical connectors.
　
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