(2)
 De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

 TASK 24-21-00-720-041
 Operational Test of the IDG Disconnect and Reconnect (Reset) Function - Engine in Operation
 WARNING : BE CAREFUL WHEN YOU WORK ON THE ENGINE COMPONENTS IMMEDIATELY AFTER_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS CAN STAY HOT FOR UP TO ONE HOUR.
 1. Reason for the Job__________________
 To do a check of the IDG disconnect system and reset system
 2. Job Set-up Information______________________ 
R  A. Fixtures, Tools, Test and Support Equipment 
R R R  -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R R  No specific  Torque Wrench : range 5.00 to 35.00 lbf.in (0.05 to 0.40 m.daN) 
R  B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 24-41-00-862-002 31-60-00-860-001 31-60-00-860-002 71-00-00-710-003 71-00-00-710-028 71-13-00-010-040 71-13-00-410-040  Energize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External PowerEIS Start ProcedureEIS Stop ProcedureEngine Automatic StartEngine ShutdownOpening of the Fan Cowl DoorsClosing of the Fan Cowl Doors 
R  **ON A/C 401-499, 
R  24-21-00-991-922  Fig. 501

R **ON A/C ALL
 3. Job Set-up
__________
 Subtask 24-21-00-860-051

 A. Aircraft Maintenance Configuration
 (1)
 Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 (2)
 Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).

 (3)
 On the ECAM control panel, push the ELEC key to get the ELEC page.

 (4) Start the engine 1(2) (Ref. TASK 71-00-00-710-003).
 Subtask 24-21-00-865-053

 B. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------122VU ELEC/IDG2/DISC 2XT T25 122VU ELEC/IDG1/DISC 1XT T24
 4. Procedure
_________
 CAUTION : DO NOT PUSH THE IDG DISCONNECT PUSHBUTTON SWITCH IF THE ENGINE

_______ SPEED IS LESS THAN IDLE SPEED. IF YOU DO, YOU WILL CAUSE DAMAGE TO THE JAW TEETH, AT ENGINE START.
 CAUTION : DO NOT PUSH THE IDG DISCONNECT PUSHBUTTON SWITCH FOR MORE THAN 3
_______ SECONDS. THERE MUST BE AT LEAST 60 SECONDS BETWEEN TWO OPERATIONS OF THE SWITCH. THIS IS TO PREVENT DAMAGE TO THE DISCONNECT SOLENOID WHICH WILL BECOME TOO HOT.

 Subtask 24-21-00-720-050
 A. Operational Test of the IDG Disconnect Function - Engine in Operation NOTE : This test is for the system 1. For the other system(s), use the
____
 indications between the parentheses.

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. With the engines at idle speed, on the ELEC control panel 35VU:
-lift the guard and push the IDG1(2) pushbutton switch.
 2. On the ELEC control panel 35VU:
-Release the GEN 1(2) pushbutton switch.
3. On the ELEC control panel 35VU:
 -push the guard of the IDG 1(2) pusbutton switch back in position.
 Subtask 24-21-00-710-054
 B. Reset of the systemOn the ELEC control panel 35VU:
-
the FAULT legend of the related GENpushbutton switch comes on

 On the lower ECAM display unit, on the ELEC page:

 -
the load, voltage and frequency parameters of the related generator are zero,

 -
the amber DISC indication comes into view under the indication IDG,

 -
the external power energizes the aircraft electrical circuits.

On the ELEC control panel 35VU:

-
the FAULT legend of the related GENpushbutton switch goes off,

 (1) Stop the engine (Ref. TASK 71-00-00-710-028).

 1EFF : ALL 1 24-21-00Page 510 1 1 Aug 01/05R 1 1 1CES 1

 Subtask 24-21-00-010-063
　
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