DOC AIRBUS | AMM A320FPush/Pull Test of the Inlet Guide Vane Mechanism (APS 3200)
TASK 49-23-51-710-001-A
Push/Pull Test of the Inlet Guide Vane Mechanism (APS 3200)
1. Reason for the Job
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 49-23-51-860-055-A ** ON A/C NOT FOR ALL
Subtask 49-23-51-710-052-A ** ON A/C NOT FOR ALL
Subtask 49-23-51-410-053-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:29:09 UTC
Push/Pull Test of the Inlet Guide Vane Mechanism (APS 3200)
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 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | DEVICE - AXIAL-SCALE MEASURING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 315AL, 316AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 49-11-11-000-003-A | Removal of the Power Plant (APU) (APS 3200) |
| TASK 49-23-51-000-003-A | Removal of the Inlet Guide Vane Actuator (APS 3200) |
| TASK 49-23-51-400-003-A | Installation of the Inlet Guide Vane Actuator (APS 3200) |
| TASK 52-41-00-010-001-A | Open the APU Doors for Access |
| TASK 52-41-00-410-001-A | Close the APU Doors after Access |
Subtask 49-23-51-860-055-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(2) Put a warning notice in the cockpit to tell persons not to start the APU.
(3) Make sure that ground fire extinguishing equipment is available.
(4) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
Subtask 49-23-51-865-062-A ** ON A/C NOT FOR ALL (1) On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(2) Put a warning notice in the cockpit to tell persons not to start the APU.
(3) Make sure that ground fire extinguishing equipment is available.
(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 49-23-51-010-057-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 3M (10 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 control switch 11LJ to the on position.
4. Procedure(1) Put the ACCESS PLATFORM 3M (10 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 control switch 11LJ to the on position.
Subtask 49-23-51-710-052-A ** ON A/C NOT FOR ALL
A. Test of the Inlet Guide Vane (IGV) mechanism (IGV Actuator installed)
(1) Pull the IGV mechanism manually to the OPEN position.
(2) Disconnect the quick-disconnect pin from the clevis of the IGV rod.
(3) Push the IGV mechanism manually back to the CLOSED position.
(5) Put the quick-disconnect pin back to the clevis of the IGV rod.
(6) Measure the load necessary to pull the IGV mechanism back to the OPEN position.
Make sure that the maximum load is not more than 11.3 daN (25.4034 lbf).
(a) If the measured load is lower than the maximum load:
Subtask 49-23-51-710-053-A ** ON A/C NOT FOR ALL (1) Pull the IGV mechanism manually to the OPEN position.
(2) Disconnect the quick-disconnect pin from the clevis of the IGV rod.
(3) Push the IGV mechanism manually back to the CLOSED position.
NOTE: A sign of a serviceable IGV mechanism is a smooth and easy movement of the IGV rod.
(4) Engage the DEVICE - AXIAL-SCALE MEASURING through the ring of the quick-disconnect pin. (5) Put the quick-disconnect pin back to the clevis of the IGV rod.
(6) Measure the load necessary to pull the IGV mechanism back to the OPEN position.
Make sure that the maximum load is not more than 11.3 daN (25.4034 lbf).
(a) If the measured load is lower than the maximum load:
- IGV mechanism is serviceable.
- remove the APU (Ref. AMM TASK 49-11-11-000-003).
B. Test of the Inlet Guide Vane (IGV) mechanism (IGV Actuator removed)
(1) Remove the IGV Actuator (Ref. AMM TASK 49-23-51-000-003).
(2) Push the IGV mechanism manually back to the CLOSED position.
(3) Engage the DEVICE - AXIAL-SCALE MEASURING through the ring of the quick-disconnect pin.
(4) Put the quick-disconnect pin back to the clevis of the IGV rod.
(5) Measure the load necessary to pull the IGV mechanism back to the OPEN position.
Make sure that the maximum load is not more than 9.8 daN (22.0313 lbf).
(a) If the measured load is lower than the maximum load:
5. Close-up(1) Remove the IGV Actuator (Ref. AMM TASK 49-23-51-000-003).
(2) Push the IGV mechanism manually back to the CLOSED position.
(3) Engage the DEVICE - AXIAL-SCALE MEASURING through the ring of the quick-disconnect pin.
(4) Put the quick-disconnect pin back to the clevis of the IGV rod.
(5) Measure the load necessary to pull the IGV mechanism back to the OPEN position.
Make sure that the maximum load is not more than 9.8 daN (22.0313 lbf).
(a) If the measured load is lower than the maximum load:
- IGV mechanism is serviceable.
- remove the APU (Ref. AMM TASK 49-11-11-000-003).
Subtask 49-23-51-410-053-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) Set the LIGHT control switch 11LJ to the off position.
(3) Close the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-410-001).
Subtask 49-23-51-860-056-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Set the LIGHT control switch 11LJ to the off position.
(3) Close the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-410-001).
B. Aircraft Maintenance Configuration
(1) Remove the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE.
(2) Remove the warning notice(s).
Subtask 49-23-51-865-069-A ** ON A/C NOT FOR ALL (1) Remove the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE.
(2) Remove the warning notice(s).
C. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 49-23-51-865-068-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 |