R 4. Procedure_________
R (Ref. Fig. 402/TASK 24-41-34-991-003)
R Subtask 24-41-34-420-051
R A. Installation of the GAPCU
R (1) Clean the component interface and/or the adjacent area.
R (2) Do an inspection of the component interface and/or the adjacent area.
R (3) Remove the blanking caps from the electrical connectors.
R (4) Make sure that the electrical connectors are clean and in the correct
R condition.
R (5) Install the GAPCU on its rack (6).
R (6) Push the GAPCU on its rack (6) to connect the electrical connector
R (5).
R (7) Engage the nuts (1) on the lugs (2) and tighten.
R Subtask 24-41-34-865-061
R B. Remove the safety clip(s) and the tag(s) and close this(these) circuit
R breaker(s):
R 11XG, 2XG, 17XG
R Subtask 24-41-34-710-051
R C. Operational Test of the Ground Auxiliary Power Control Unit (GAPCU)
R (1) Do an operational test of the GAPCU with the CFDS (Ref. TASK 24-41-
R 00-740-002).
R NOTE : As an alternative procedure for the operational test without____
R the CFDS, you can do this procedure (Ref. TASK 24-41-00-861-
R 002).
R Make sure that the aircraft electrical circuits are correctly
R energized with the external power supply.
R 5. Close-up________
R Subtask 24-41-34-410-051
R A. Close Access
R (1) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (2) Remove the warning notice(s).
R (3) Close the access door 811.
R (4) Close the access door 121AL.
R (5) Remove the access platform(s).
RECEPTACLE - EXTERNAL POWER (20XG) - REMOVAL/INSTALLATION
_________________________________________________________ TASK 24-41-51-000-001 Removal of the External Power Receptacle (20XG) 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(s)
No specific access platform 0.5 m (1 ft. 8 in.)
No specific access platform 1.6 m (5 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-51-991-001 Fig. 401
3. Job Set-up
__________ Subtask 24-41-51-010-050
A. Get Access
(1)
Put an access platform at the access door 811.
(2)
Open the access door 811.
(3)
Put an access platform at the access door 121AL.
(4)
Open the access door 121AL.
1EFF : ALL 1 24-41-51Page 401 1 1 Aug 01/04R 1 1 1CES 1
Subtask 24-41-51-941-050
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.
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