DOC AIRBUS | AMM A320FRemoval of the Starter Motor Clutch (131-9(A))
TASK 49-42-52-000-003-A
Removal of the Starter Motor Clutch (131-9(A))
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 49-42-52-860-056-A ** ON A/C NOT FOR ALL
Subtask 49-42-52-020-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:43:07 UTC
Removal of the Starter Motor Clutch (131-9(A))
WARNING:
DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 315AL, 316AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 49-42-51-000-006-A | Removal of the Starter Motor (131-9(A)) |
| TASK 52-41-00-010-001-A | Open the APU Doors for Access |
Clutch - Starter MotorSubtask 49-42-52-860-056-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(2) On the panel 25VU, make sure that the APU MASTER SW p/bsw OFF.
(3) Put a warning notice in the cockpit to tell persons not to start the APU.
(4) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
Subtask 49-42-52-865-056-A ** ON A/C NOT FOR ALL (1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(2) On the panel 25VU, make sure that the APU MASTER SW p/bsw OFF.
(3) Put a warning notice in the cockpit to tell persons not to start the APU.
(4) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 49-42-52-010-054-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
C. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the APU access doors 315AL and 316AR.
(2) Open the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-010-001).
(3) Set the light SW 11LJ to the ON position.
4. Procedure(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the APU access doors 315AL and 316AR.
(2) Open the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-010-001).
(3) Set the light SW 11LJ to the ON position.
Subtask 49-42-52-020-055-A ** ON A/C NOT FOR ALL
A. Removal of the Starter Motor Clutch
(1) Remove the starter motor (Ref. AMM TASK 49-42-51-000-006).
(2) Remove the bolts (1), the washers (2) and the clamp (3).
(3) Remove the cover (4).
(4) Remove and discard the packing (5).
(5) Remove the wave spring washer (6).
(6) Remove the clutch assembly (7) from the gearbox housing.
(7) Put a PLUG - BLANKING on the gearbox housing.
(1) Remove the starter motor (Ref. AMM TASK 49-42-51-000-006).
(2) Remove the bolts (1), the washers (2) and the clamp (3).
(3) Remove the cover (4).
(4) Remove and discard the packing (5).
(5) Remove the wave spring washer (6).
(6) Remove the clutch assembly (7) from the gearbox housing.
(7) Put a PLUG - BLANKING on the gearbox housing.