(2)
 Put warning notice(s) in position on the access door 121AL to tell persons not to connect the external power connector to the aircraft EXT PWR receptacle.

 (3)
 In the cockpit, on the ELEC panel 35VU, make sure that these pushbutton switches are released:

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

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

 -21VU (EMER ELEC PWR section),
 -25VU (APU section),
 -35VU (ELEC).
 1EFF : ALL 1 24-42-55Page 402 1 1 May 01/04R 1 1 1CES 1

 Subtask 24-42-55-865-050
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU ELEC/EXT PWR/LT CLT/NOT IN/USE 6XG X30
 4. Procedure
_________
 **ON A/C 001-049, 051-062, 101-105, 151-152, 201-205,

 (Ref. Fig. 401/TASK 24-42-55-991-001) R **ON A/C 063-099, 106-149, 153-199, 206-299, 301-399, 401-499,
 (Ref. Fig. 401A/TASK 24-42-55-991-001-A)
 **ON A/C ALL

 Subtask 24-42-55-020-050
 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 a blanking caps on the disconnected electrical connector (1) and the electrical receptacle.

 (3)
 Loosen the captive screws (2). NOTE : Do not remove the captive screws (2) and the spring washers

 (4)
 Remove the contactor (3).

____
 from the contactor (3).

 Contactors
 Figure 401/TASK 24-42-55-991-001

R 1EFF : 001-049, 051-062, 101-105, 151-152, 1 24-42-55Page 404 1201-205, 1May 01/05 1 1 1CES 1

 Contactors
 Figure 401A/TASK 24-42-55-991-001-A

R 1EFF : 063-099, 106-149, 153-199, 206-299, 1 24-42-55Page 405 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 TASK 24-42-55-400-001

 Installation of the Contactors (12XX, 14XX)
 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 warning notice
 No specific access platform 0.5 m (1 ft. 8 in.)
R No specific Torque Wrench : range 5.00 to 35.00 lbf.in
R (0.05 to 0.40 m.daN)
 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
 the External Power
 25-11-41-000-001 Removal of the Third Occupant Seat
 25-11-41-400-001 Installation of the Third Occupant Seat

R **ON A/C 001-049, 051-062, 101-105, 151-152, 201-205,
 24-42-55-991-001 Fig. 401 -------------------------------------------------------------------------------

REFERENCE DESIGNATION
 -------------------------------------------------------------------------------

R **ON A/C 063-099, 106-149, 153-199, 206-299, 301-399, 401-499,
 24-42-55-991-001-A Fig. 401A
 **ON A/C ALL
 3. Job Set-up
__________
 Subtask 24-42-55-860-050
 A. Aircraft Maintenance Configuration
 (1)
 In the cockpit, make sure that the third occupant seat is removed (Ref. TASK 25-11-41-000-001).

 (2)
 In the cockpit, in the L lower section of the panel 120VU, make sure that the access panel (8) of the panel 123VU is removed.

 (3)
 Make sure that the access platform is in position at the access door 121AL.
　
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