-adjust the frequency of the IDG,
-install the IDG on the engine gearbox.
If the frequency of the IDG is out of the limits 380 - 420 Hz, replace the
IDG.
NOTE : You cannot get access to the frequency adjustment screw when the IDG
____ is on the engine. The adjustment of the frequency is permitted only one time each 400FH. If you adjust the governor, make an entry in the aircraft technical logbook.
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-21-51-000-040 Removal of the Integrated Drive Generator -IDG 1(2),(4000XU) 24-21-51-400-040 Installation of the Integrated Drive Generator -IDG 1(2),(4000XU) 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 71-00-00-710-003 Engine Automatic Start 71-00-00-710-028 Engine Shutdown
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors R 24-21-00-991-920 Fig. 502
3. Job Set-up
__________
Subtask 24-21-00-010-056
A. Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
-
FOR 1000EM1
437AL, 438AR.
-
FOR 1000EM2
447AL, 448AR.
Subtask 24-21-00-860-050
B. 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, get the ELEC page.
(4)
Start the related engine (Ref. TASK 71-00-00-710-003).
Subtask 24-21-00-865-057
C. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 1000EM1
122VU ELEC/IDG1/DISC 1XT T24 FOR 1000EM2 122VU ELEC/IDG2/DISC 2XT T25
4. Procedure
_________ R (Ref. Fig. 502/TASK 24-21-00-991-920) WARNING : WEAR GOGGLES WHEN YOU REMOVE OR INSTALL THE LOCKWIRE. CUT, REMOVE
_______ AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE LOCKWIRE CAN CUT OR BLIND YOU.
CAUTION : DO NOT ADJUST THE GOVERNOR MORE THAN 1 TIME EACH 400 FH. IF YOU
_______ ADJUST THE GOVERNOR, MAKE AN ENTRY IN THE AIRCRAFT TECHNICAL LOGBOOK.
Subtask 24-21-00-730-050
A. Test of the IDG Frequency
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ECAM control panel:
-get the ELEC page
2.
Shut down the engine (Ref. TASK 71-00-00-710-028).
3.
Remove the IDG from the engine gearbox (Ref. TASK 24-21-51-000-040).
4.
Remove the lockwire from the governor adjustment screw (2).
5.
Adjust the frequency to 400 + or
-1 Hertz. To do this, turn the adjustment screw (2):
-clockwise to decrease the
frequency,
- or counterclockwise to increase the frequency.
On the lower ECAM display unit:
-read the operating frequency of the generator (IDG1 or IDG2) to calculate the value of the necessary adjustment.
NOTE : The normal operating frequency
____ of the generator is 400 + or - 5 Hertz.
R Governor Adjustment Screw - IDG Figure 502/TASK 24-21-00-991-920
1EFF : 1 1 1CES ALL 1 111 24-21-00 Page 517 Aug 01/05
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