W DOC AIRBUS | AMM A320F

Installation of the Integrated Drive Generator (IDG) - IDG 1(2)

TASK 24-21-51-400-806-A
Installation of the Integrated Drive Generator (IDG) - IDG 1(2)

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING: DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.
WARNING: BE CAREFUL DURING THE REMOVAL/INSTALLATION OF THE IDG. IT WEIGHS 124lb (60kg). DRY WEIGHT.
CAUTION: DO NOT USE THE IDG CABLES FOR A HAND HOLD. IF THE IDG CABLES ARE PULLED LOOSE IT CAN CAUSE DAMAGE TO THE CABLES OR TO THE ENGINE.
ZONE: 435
ZONE: 445
FIN: 4000XU1
FIN: 4000XU2
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
DRIFT - BRASS
No specific
1
MALLET - RUBBER
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 3.17 and 2.65 lbf.ft (0.43 and 0.36 m.daN ) T
No specific
Torque wrench: range to between 10.34 and 8.84 lbf.ft (1.40 and 1.20 m.daN ) T
No specific
Torque wrench: range to between 14.00 and 12.00 lbf.ft (1.90 and 1.63 m.daN ) T
No specific
Torque wrench: range to between 26 and 22 lbf.ft (3.53 and 2.98 m.daN ) T
No specific
Torque wrench: range to between 64.60 and 55.16 lbf.ft (8.76 and 7.48 m.daN ) T
No specific
Torque wrench: range to between 93.15 and 78.18 lbf.ft (12.63 and 10.60 m.daN ) T
No specific
Torque wrench: range to between 22 and 20 lbf.in (0.25 and 0.23 m.daN ) T
No specific
Torque wrench: range to between 17.0 and 13.6 m.N (12.54 and 10.03 lbf.ft ) T
No specific
Torque wrench: range to between 34.5 and 31.6 m.N (25.44 and 23.30 lbf.ft ) T
No specific
Torque wrench: range to between 39.6 and 33.9 m.N (29.20 and 25.00 lbf.ft ) T
No specific
Torque wrench: range to between 42.8 and 36.2 m.N (31.56 and 26.70 lbf.ft ) T
98D71203015000
1
IDG R/I CRADLE (CFM)
98D71203022000
1
ADAPTER-TROLLEY R/I IDG (PW AND CFM)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2442)
engine oil
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
lockwire 0.032 in. (0.8 mm) dia
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
435
FAN AND ACCESSORY GEARBOX
445
FAN AND ACCESSORY GEARBOX
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
33
PACKING
AIPC 24-21-51-61-010
32
PACKING
AIPC 24-21-51-61-050
25
PACKING
AIPC 24-21-51-70-010
28
PACKING
AIPC 24-21-51-70-040
35
PACKING
AIPC 24-21-51-70-080
36
PACKING
AIPC 24-21-51-70-100
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 12-13-24-612-804-A
Integrated Drive Generator (IDG) Servicing - Filling of the IDG with Oil or Addition of Oil after a Level Check
TASK 24-21-00-210-808-A
Check IDG Oil Level and Differential Pressure Indicator
TASK 24-21-00-710-805-A-01
Operational Check of Integrated Drive Generator (IDG) Disconnect and Reconnect Function
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 49-00-00-860-008-A
APU Start by External Power
TASK 49-00-00-860-008-A-01
APU Start by Batteries
TASK 49-00-00-860-009-A
APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01
APU Shutdown by Batteries (131-9(A))
TASK 71-00-00-860-827-A
Start the Engine (Normal Automatic Start)
TASK 71-00-00-860-829-A
Engine Shutdown
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
F Integrated Drive Generator - IDG 1(2)
3. Job Set-up
Subtask 24-21-51-941-067-A
A. Aircraft Maintenance Configuration
   (1) On the center pedestal, on ENG panel 115VU, make sure that the WARNING NOTICE(S) is in position to tell persons not to start the engine.
   (2) On the overhead panel, on ENG section of control panel 50VU, make sure that the ENG/FADEC GND PWR/1(2) pushbutton switch is released (the ON legend is off).
   (3) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to energize the FADEC 1(2).
Subtask 24-21-51-865-088-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VUELEC/GCU/12XU1T26
122VUELEC/IDG1/DISC1XTT24
FOR FIN: 4000XU2 (IDGENG 2)
122VUELEC/GCU/22XU2T27
122VUELEC/IDG2/DISC2XTT25
Subtask 24-21-51-010-092-A
C. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
4. Procedure
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
Subtask 24-21-51-420-160-A
A. Installation of the IDG
   (1) Make sure that the mating surfaces are clean and that there are no unwanted materials.
   (2) Install the 98D71203015000 IDG R/I CRADLE (CFM) on the 98D71203022000 ADAPTER-TROLLEY R/I IDG (PW AND CFM).
   (3) Attach the IDG (1) to the 98D71203015000 IDG R/I CRADLE (CFM) as follows:
     (a) Attach the IDG (1) to the 98D71203015000 IDG R/I CRADLE (CFM) with the detail straps. Refer to the Ground Support Equipment (GSE) manufacturer's instructions.
   (4) Lift the 98D71203015000 IDG R/I CRADLE (CFM) to the correct installation position with the 98D71203022000 ADAPTER-TROLLEY R/I IDG (PW AND CFM). Refer to the GSE manufacturer's instructions.
   (5) Lubricate the thread of the QAD tension bolt (30), the new AIPC 24-21-51-61-050 PACKING (32) and the new AIPC 24-21-51-61-010 PACKING (33) with engine oil (Material No.CP2442) .
   (6) Install the packing (33) in the groove of the IDG (1).
   (7) Install the packing (32) in the groove of the IDG shaft (31).
   (8) Make sure that the QAD adapter/ring alignment mark and the QAD adapter plate alignment-mark are aligned (OPEN marks).
     (a) If they are not aligned, turn the QAD tension bolt (30) to open the QAD ring until the QAD adapter/ring alignment-marks on the QAD ring become aligned.
   (9) Operate the 98D71203022000 ADAPTER-TROLLEY R/I IDG (PW AND CFM) to align the IDG (1) with the mark on the QAD adapter and the pins with the pin holes. Refer to the GSE manufacturer's instructions.
   (10) Tighten the QAD tension bolt (30) with your hand until the IDG input flange lugs are fully engaged in the QAD ring lugs.
   (11) Make sure that the ring of the QAD coupling (29) turns easily.
   (12) TORQUE the QAD tension bolt (30) to between 26 and 22 lbf.ft (3.53 and 2.98 m.daN ) T.
   (13) Lightly tap the outer edge of the QAD adapter ring (in no less than three locations at equal distance) with a DRIFT - BRASS or a MALLET - RUBBER.
   (14) Open the straps and remove the IDG (1) from the 98D71203015000 IDG R/I CRADLE (CFM). Refer to the GSE manufacturer's instructions.
   (15) Lower the 98D71203015000 IDG R/I CRADLE (CFM) and remove the 98D71203022000 ADAPTER-TROLLEY R/I IDG (PW AND CFM) from the work area. Refer to the GSE manufacturer's instructions.
   (16) Do a check of the torque value of the QAD tension bolt (30). Do steps 12 and 13 again until the QAD tension bolt (30) torque value does not decrease more than 2 lbf.ft (0.27 m.daN).
   (17) Installation of the lockwire on the QAD tension bolt (30)
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
     (a) Safety the QAD tension bolt (30) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (18) Remove the protection covers and protection caps from the openings, tubes and hoses.
   (19) Installation of the overflow drain half-coupling (26) on the IDG (1)
     (a) Lubricate the threads of the overflow drain half-coupling (26) and the new AIPC 24-21-51-70-040 PACKING (28) with engine oil (Material No.CP2442) .
     (b) Install the packing (28) in the groove of the overflow drain half-coupling (26).
     (c) Install the overflow drain half-coupling (26) in the correct position on the IDG (1).
     (d) Tighten the overflow drain half-coupling (26) with your hand.
     (e) TORQUE the overflow drain half-coupling (26) to between 34.5 and 31.6 m.N (25.44 and 23.30 lbf.ft ) T.
     (f) Install the blanking cap (27) on the overflow drain half-coupling (26).
   (20) Installation of the pressure fill half-coupling (23) on the IDG (1)
     (a) Lubricate the threads of the pressure fill half-coupling (23) and new AIPC 24-21-51-70-010 PACKING (25) with engine oil (Material No.CP2442) .
     (b) Install the packing (25) in the groove of the pressure fill half-coupling (23).
     (c) Install the pressure fill half-coupling (23) in the correct position on the IDG (1).
     (d) Tighten the pressure fill half-coupling (23) with your hand.
     (e) TORQUE the pressure fill half-coupling (23) to between 17.0 and 13.6 m.N (12.54 and 10.03 lbf.ft ) T.
     (f) Install the blanking cap (24) on the pressure fill half-coupling (23).
   (21) Installation of the oil-cooling drain (out) line (20) on the IDG (1)
     (a) Lubricate a new AIPC 24-21-51-70-100 PACKING (36) with engine oil (Material No.CP2442) .
       1 Install the packing (36) in the groove of the coupling (21).
       2 Install the coupling (21) in the correct port of the IDG (1).
       3 Tighten the coupling (21) with your hand.
       4 TORQUE the coupling (21) to between 39.6 and 33.9 m.N (29.20 and 25.00 lbf.ft ) T.
     (b) Lubricate the end fittings of the oil-cooling drain (out) line (20) and the threads of the coupling (21) with engine oil (Material No.CP2442) .
     (c) Hold the coupling nut (22) and install the oil-cooling drain (out) line (20) in the coupling (21).
     (d) Tighten the coupling nut (22) with your hand.
     (e) TORQUE the coupling nut (22) to between 64.60 and 55.16 lbf.ft (8.76 and 7.48 m.daN ) T.
   (22) Installation of the oil-cooling supply (in) line (17) on the IDG (1)
     (a) Lubricate a new AIPC 24-21-51-70-080 PACKING (35) with engine oil (Material No.CP2442) .
       1 Install the packing (35) in the groove of the coupling (18).
       2 Install the coupling (18) in the port of the IDG (1).
       3 Tighten the coupling (18) with your hand.
       4 TORQUE the coupling (18) to between 42.8 and 36.2 m.N (31.56 and 26.70 lbf.ft ) T.
     (b) Lubricate the end fittings of the oil-cooling supply (in) line (17) and the threads of the coupling (18) with engine oil (Material No.CP2442) .
     (c) Hold the coupling nut (19) and install the oil-cooling supply (in) line (17) in the coupling (18).
     (d) Tighten the coupling nut (19) of the oil-cooling supply (in) line (17) with your hand.
     (e) TORQUE the coupling nut (19) to between 93.15 and 78.18 lbf.ft (12.63 and 10.60 m.daN ) T.
   (23) Installation of the phase cables (13) on the IDG (1)
     (a) Removal of the cover (11)
       1 Remove the screws (10), the two washers and the cover (11).
       2 Remove the four captive washer nuts (14) from the terminal studs of the terminal block (12).
     (b) Remove the tie wraps from the four phase cables (13).
     (c) Install the phase cables (13) in the correct position on the terminal block (16).
     (d) Install the phase cables (13) in the correct position on the terminal block (12).
     (e) Install the four captive washer nuts (14) and attach the four phase cables (13) to the terminal block (12).
     (f) TORQUE the four captive washer nuts (14) to between 14.00 and 12.00 lbf.ft (1.90 and 1.63 m.daN ) T.
     (g) Put the terminal block (16) in its correct position on the bracket (5).
     (h) Install the two bolts (15) and attach the terminal block (16) to the bracket (5) and tighten them with your hand.
     (i) TORQUE the two bolts (15) to between 10.34 and 8.84 lbf.ft (1.40 and 1.20 m.daN ) T.
     (j) Put the cover (11) in its correct position on the terminal block (12).
     (k) Install the two screws (10) and the two washers and attach the cover (11) to the terminal block (12).
     (l) TORQUE the two screws (10) to between 22 and 20 lbf.in (0.25 and 0.23 m.daN ) T.
   (24) Connection of the electrical harnesses to the IDG (1)
     (a) Remove the tie wraps from electrical harness connectors 1 (2), 2 (6) and 3 (9).
     (b) Remove the blanking caps from the connectors of the IDG (1) and electrical harness connectors 1 (2), 2 (6) and 3 (9).
     (c) Connect electrical harness connector 3 (9) to the IDG (1).
     (d) Connection of electrical harness connector 2 (6):
       1 Lubricate the thread of the bolt (7) with engine oil (Material No.CP2442) .
       2 Put the clamp (8) and the electrical harness in their correct position on the bracket (5).
       3 Install the bolt (7) and attach the clamp (8) to the bracket (5) and tighten it with your hand.
       4 TORQUE the bolt (7) to between 3.17 and 2.65 lbf.ft (0.43 and 0.36 m.daN ) T.
       5 Connect electrical harness connector 2 (6) to the IDG (1).
     (e) Connection of electrical harness connector 1 (2):
       1 Lubricate the thread of the bolt (3) with engine oil (Material No.CP2442) .
       2 Put the clamp (4) and the electrical harness in their correct position on the bracket (5).
       3 Install the bolt (3) and attach the clamp (4) to the bracket (5) and tighten it with your hand.
       4 TORQUE the bolt (3) to between 3.17 and 2.65 lbf.ft (0.43 and 0.36 m.daN ) T.
       5 Connect electrical harness connector 1 (2) to the IDG (1).
Subtask 24-21-51-612-071-A
B. Fill the IDG with oil (Ref. AMM TASK 12-13-24-612-804).
Subtask 24-21-51-865-089-A
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4000XU1 (IDGENG 1)
122VUELEC/GCU/12XU1T26
122VUELEC/IDG1/DISC1XTT24
FOR FIN: 4000XU2 (IDGENG 2)
122VUELEC/GCU/22XU2T27
122VUELEC/IDG2/DISC2XTT25
Subtask 24-21-51-710-065-A
D. Operational test of the IDG disconnect and reconnect (reset) function with the engine in operation (Ref. AMM TASK 24-21-00-710-805).
Subtask 24-21-51-720-066-A
E. Check of the Electrical Properties and Check for Oil Leaks
   (1) Start engines 1 and 2 at minimum idle (Ref. AMM TASK 71-00-00-860-827).
   (2) Make sure that the IDG operates correctly:
     (a) Do the Electronic Instrument System (EIS) start procedure of the upper ECAM Display Unit (DU) and lower ECAM DU only (Ref. AMM TASK 31-60-00-860-001).
     (b) On the ECAM control panel, push the ELEC key to get the ELEC page on the lower ECAM DU:
  • Make sure that the voltage of the IDG is 115VAC.
  • Make sure that the frequency of the IDG is 400Hz plus or minus 5Hz.
     (c) If you removed the IDG after an IDG 1(2) disconnection, do a GCU 1(2) reset at the first engine start at idle:
  • Push then release the related ELEC/GEN pushbutton switch (the OFF legend goes off then comes on).
   (3) Do the switching test that follows:
ACTION
RESULT
1.On the overhead panel, on the APU section of control panel 25VU:
  • Make sure that the APU MASTER SW pushbutton switch is released.
On the overhead panel, on the APU section of control panel 25VU:
  • The ON legend of the APU MASTER SW pushbutton switch is off.
2.On the overhead panel, on the ELEC section of control panel 35VU:
  • Release the GEN1 pushbutton switch.
On the overhead panel, on the ELEC section of control panel 35VU:
  • The OFF legend of the GEN1 pushbutton switch comes on.
3.Wait for three minutes.


On the lower ECAM DU, on the ELEC page, there is a green line between:
  • The GEN2 and the AC2 busbar
  • The AC2 and AC1 busbars
  • The AC1 and AC ESS busbars.
4.On the overhead panel, on the ELEC section of control panel 35VU:
  • Push the GEN1 pushbutton switch.
On the overhead panel, on the ELEC section of control panel 35VU:
  • The OFF legend of the GEN1 pushbutton switch goes off.
5.On the overhead panel, on the ELEC section of control panel 35VU:
  • Release the GEN2 pushbutton switch.
On the overhead panel, on the ELEC section of control panel 35VU:
  • The OFF legend of the GEN2 pushbutton switch comes on.
6.Wait for three minutes.


On the lower ECAM DU, on the ELEC page, there is a green line between:
  • The GEN1 and the AC1 busbar
  • The AC1 and AC2 busbars
  • The AC1 and AC ESS busbars.
7.Start and operate the APU:
For the GTCP 36-300 (Ref. AMM D/O 49-00-00-86), or
for the APS 3200 (Ref. AMM D/O 49-00-00-86), or
for the 131-9(A) (Ref. AMM TASK 49-00-00-860-008).
On the lower ECAM DU, on the ELEC page, there is a green line between:
  • The AC ESS and AC1 busbars
  • The APU GEN and the AC2 busbar.
    The parameters that follow appear:
  • The AC LOAD percentage is shown in green.
  • AC V = 115 + or - 5V
  • FRQ HZ = 400 + or - 10HZ.
8.On the overhead panel, on the ELEC section of control panel 35VU:
  • Push the GEN2 pushbutton switch.
On the overhead panel, on the ELEC section of control panel 35VU:
  • The OFF legend of the GEN2 pushbutton switch goes off.
   (4) Stop engines 1 and 2 (Ref. AMM TASK 71-00-00-860-829).
   (5) On the overhead panel, on the ELEC section of control panel 35VU:
     (a) Make sure that the EXT PWR pushbutton switch is pushed (the OFF legend is off).
   (6) Stop the APU:
For the GTCP 36-300 (Ref. AMM D/O 49-00-00-86), or
for the APS 3200 (Ref. AMM D/O 49-00-00-86), or
for the 131-9(A) (Ref. AMM TASK 49-00-00-860-009).
   (7) Make sure that there are no oil leaks.
   (8) Do a check of the oil level at the sight glass of the IDG (1) (Ref. AMM TASK 24-21-00-210-808).
5. Close-up
Subtask 24-21-51-410-082-A
A. Put the aircraft back to its initial configuration.
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the fan cowl-doors (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR.
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.03.31 23:21:37 UTC
"Aviabrain" 2025