Installation of the Engine Dedicated Alternator (EDA) Stator and or Cooling Shroud [IAE]

TASK 73-22-38-400-010-B
Installation of the Engine Dedicated Alternator (EDA) Stator and or Cooling Shroud

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN: 4005EV ** ON A/C NOT FOR ALL

1. Reason for the Job
This TASK is for V2500-A5 engines.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	AR	WRENCH 0,75 TO 2 IN (19,05 TO 50,8 MM) - C SPANNER
No specific	Torque wrench: range to between 50 and 46 lbf.in (0.57 and 0.52 m.daN )
No specific	Torque wrench: range to between 110 and 90 lbf.in (1.24 and 1.02 m.daN )
No specific	Torque wrench: range to between 310 and 283 lbf.in (3.50 and 3.20 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-001)	cleaning fluid
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	SEALING RING	AIPC 73-22-38-80-050

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
TASK 71-00-00-710-022-B	Test No. 6: Electronic Engine Control (EEC) System Idle Test
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
Engine Dedicated Alternator Stator
Engine Dedicated Alternator Stator SBE 73-0076

3. Job Set-up
Subtask 73-22-38-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 73-22-38-010-053-A ** ON A/C NOT FOR ALL

B. Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 73-22-38-110-051-A ** ON A/C NOT FOR ALL

A. Cleaning:
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with cleaning fluid (Material No.V01-001) to clean the mating faces of the stator (5) and the alternator rotor assembly.

Engine Dedicated Alternator Stator ** ON A/C NOT FOR ALL

Subtask 73-22-38-210-053-A ** ON A/C NOT FOR ALL

B. Examination:

Engine Dedicated Alternator Stator ** ON A/C NOT FOR ALL

(1) Visually examine the mating faces of the stator (5) and the alternator rotor assembly for flatness. Remove any raised surface areas or burrs.
(2) Remove all covers from the openings.

Subtask 73-22-38-420-051-A ** ON A/C NOT FOR ALL

CAUTION: BE CAREFUL WHEN YOU INSTALL THE EDA STATOR. THE MAGNETS OF THE ROTOR WILL PULL THE STATOR. DAMAGE TO THE STATOR LAMINATIONS AND THE ROTOR CAN OCCUR IF YOU DO NOT HOLD THE STATOR CAREFULLY.

C. Installation of the EDA Stator:

Engine Dedicated Alternator Stator ** ON A/C NOT FOR ALL

PRE SBE 73-0076

(1) Install the AIPC 73-22-38-80-050 SEALING RING (2) to the stator (5) (Ref. AMM TASK 70-23-13-911-010).
(2) Install the stator (5) to the alternator rotor assembly.

NOTE: The stator can only be installed in one position because the distances between the mounting bolt holes are not equal.

(3) Install the three bolts (3) and the three nuts (4).
(4) TORQUE the nuts (4) to between 110 and 90 lbf.in (1.24 and 1.02 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

Subtask 73-22-38-420-057-A ** ON A/C NOT FOR ALL

CAUTION: YOU MUST MAKE SURE THAT YOU INSTALL THE ALTERNATOR SHROUD IN THE CORRECT POSITION ON THE STATOR GENERATOR TO PREVENT THE COMPONENTS FROM OVERHEATING AND DAMAGE DURING IN-SERVICE OPERATIONS.

D. EDA Cooling shroud alignment must be checked before installation. Align the cooling shroud to the reference mark "1", item "B".

Engine Dedicated Alternator Stator SBE 73-0076 ** ON A/C NOT FOR ALL

NOTE: The procedure for installation of engine dedicated alternator stator cooling shroud on P/N 430201 does not apply to POST SBE 73-0073.

SBE 73-0076: Dedicated alternator stator - Introduction of new source supply

(1) With the arrow aligned make sure the dowel on the shroud engages in the adjacent cooling hole in the casing, this correctly aligns the cooling air inlet on the shroud with the cooling hole in the casing. Tighten the clamping nut on the shroud to hold the shroud firmly in the correct position.
(2) Install the AIPC 73-22-38-80-050 SEALING RING (2) to the stator (5) (Ref. AMM TASK 70-23-13-911-010).
(3) Installation of the Stator

CAUTION: BE CAREFUL WHEN YOU INSTALL THE EDA STATOR. THE MAGNETS OF THE ROTOR WILL PULL THE STATOR. DAMAGE TO THE STATOR LAMINATIONS AND THE ROTOR CAN OCCUR IF YOU DO NOT HOLD THE STATOR CAREFULLY.

(a) Install the stator (5) to the alternator rotor assembly.

NOTE: The stator can only be installed in one position because the distances between the mounting bolt holes are not equal.

(b) Install the three bolts (3) and the three nuts (4).
(c) TORQUE the nuts (4) to between 110 and 90 lbf.in (1.24 and 1.02 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(d) TORQUE the clamping nut on the shroud to between 50 and 46 lbf.in (0.57 and 0.52 m.daN )

Subtask 73-22-38-420-054-A ** ON A/C NOT FOR ALL

E. Connection

Engine Dedicated Alternator Stator ** ON A/C NOT FOR ALL

(1) Connect the air bearing compartment cooling tube
(a) Install the tube (1) to the EDA stator (5).
(b) TORQUE the tube to between 310 and 283 lbf.in (3.50 and 3.20 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(2) Connect the electrical connectors
(a) Install the connectors (6) and (7) into the receptacles on the stator (5) (Ref. AMM TASK 70-23-15-912-010)
(b) Tighten the coupling nuts of the connectors (6) and (7) with a WRENCH 0,75 TO 2 IN (19,05 TO 50,8 MM) - C SPANNER.
(c) Tighten the coupling nuts until they are not easy to turn. Then tighten them 1/16 of a turn more.

5. Close-up
Subtask 73-22-38-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

Subtask 73-22-38-720-051-A ** ON A/C NOT FOR ALL

B. Do an Electronic Engine Control (EEC) System idle test (Ref. AMM TASK 71-00-00-710-022).

[Rev.10 from 2021] 2026.04.01 13:01:37 UTC