DOC AIRBUS | AMM A320FInstallation of the Compressor Pneumatic Overheat-Sensor
TASK 21-61-18-400-001-A
Installation of the Compressor Pneumatic Overheat-Sensor
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 21-61-18-860-050-A ** ON A/C NOT FOR ALL
Subtask 21-61-18-420-050-A ** ON A/C NOT FOR ALL
Subtask 21-61-18-410-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:11:38 UTC
Installation of the Compressor Pneumatic Overheat-Sensor
WARNING:
MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | Torque wrench: range to between 1.05 and 0.95 m.daN (92.92 and 84.07 lbf.in )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.14QDB1) | Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [10HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT) | |
| 191KB | |
| FOR [11HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT) | |
| 192KB | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 6 | PACKING | AIPC 21-52-41-29-300 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-33-21-618-001-A-01 | Pre-conditioning through the HP Ground Connection |
| TASK 12-33-21-618-001-A-02 | Pre-conditioning with the APU |
| TASK 21-61-00-710-001-A | Operational Test of the Pack Temperature-Control System |
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 53-35-13-000-002-A | Removal of the Quick-Release Access Panels from the Belly Fairing Structure |
| TASK 53-35-13-400-002-A | Installation of the Quick-Release Access Panels on the Belly Fairing Structure |
Compressor Pneumatic Overheat-SensorSubtask 21-61-18-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(b) The access panel is removed (Ref. AMM TASK 53-35-13-000-002):
1 FOR [10HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
191KB.
2 FOR [11HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
192KB.
Subtask 21-61-18-865-054-A ** ON A/C NOT FOR ALL (1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(b) The access panel is removed (Ref. AMM TASK 53-35-13-000-002):
1 FOR [10HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
191KB.
2 FOR [11HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
192KB.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 10HM9 (SENSORCOMPRESSOR PNEUMATIC OVHT) | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/115VAC | 1HH | X22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/28VDC | 3HH | X21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/28VDC | 4HH | Y19 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/115VAC | 2HH | Y18 |
| FOR FIN: 11HM9 (SENSORCOMPRESSOR PNEUMATIC OVHT) | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/115VAC | 21HH | W22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/28VDC | 23HH | W21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/28VDC | 24HH | Y21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/115VAC | 22HH | Y20 |
Subtask 21-61-18-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Compressor Pneumatic Overheat-Sensor
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Make sure that the removed packing (6) is in a good condition. If necessary replace the AIPC 21-52-41-29-300 PACKING (6).
(3) Remove the blanking plugs from the disconnected line ends.
(4) Apply a small quantity of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the screws (3).
(5) Clean the component interfaces and the adjacent area.
(6) Put the packing (6) in position on the compressor pneumatic overheat-sensor (5).
(7) Put the compressor pneumatic overheat-sensor (5) in position in the pipe assembly (1) and install the washers (4) and the screws (3).
(8) Make sure that the compressor pneumatic overheat-sensor (5) is in the correct position and tighten the screws (3).
(9) Wipe clean the excess Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) from the screws (3) and safety with14QDB1 Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -
(10) Connect the sense line (2).
(11) TORQUE the sense line (2) connector to between 1.05 and 0.95 m.daN (92.92 and 84.07 lbf.in ).
(12) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-61-18-865-055-A ** ON A/C NOT FOR ALL (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Make sure that the removed packing (6) is in a good condition. If necessary replace the AIPC 21-52-41-29-300 PACKING (6).
(3) Remove the blanking plugs from the disconnected line ends.
(4) Apply a small quantity of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the screws (3).
(5) Clean the component interfaces and the adjacent area.
(6) Put the packing (6) in position on the compressor pneumatic overheat-sensor (5).
(7) Put the compressor pneumatic overheat-sensor (5) in position in the pipe assembly (1) and install the washers (4) and the screws (3).
(8) Make sure that the compressor pneumatic overheat-sensor (5) is in the correct position and tighten the screws (3).
(9) Wipe clean the excess Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) from the screws (3) and safety with
(10) Connect the sense line (2).
(11) TORQUE the sense line (2) connector to between 1.05 and 0.95 m.daN (92.92 and 84.07 lbf.in )
. (12) Make sure that the work area is clean and clear of tools and other items.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-61-18-710-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 10HM9 (SENSORCOMPRESSOR PNEUMATIC OVHT) | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/115VAC | 1HH | X22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/28VDC | 3HH | X21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/28VDC | 4HH | Y19 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/115VAC | 2HH | Y18 |
| FOR FIN: 11HM9 (SENSORCOMPRESSOR PNEUMATIC OVHT) | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/115VAC | 21HH | W22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/28VDC | 23HH | W21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/28VDC | 24HH | Y21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/115VAC | 22HH | Y20 |
C. Test
(1) Do the pre-conditioning through the HP ground connector or with the APU (Ref. AMM TASK 12-33-21-618-001) (Ref. AMM TASK 12-33-21-618-001).
(2) Do a leak check of the compressor pneumatic overheat-sensor sense line connection.
(4) Do the operational test of the pack temperature control system (Ref. AMM TASK 21-61-00-710-001).
5. Close-up(1) Do the pre-conditioning through the HP ground connector or with the APU (Ref. AMM TASK 12-33-21-618-001) (Ref. AMM TASK 12-33-21-618-001).
(2) Do a leak check of the compressor pneumatic overheat-sensor sense line connection.
NOTE: Leaks are not permitted.
(3) After approx. 15 minutes stop the pre-conditioning (Ref. AMM TASK 12-33-21-618-001) (Ref. AMM TASK 12-33-21-618-001). (4) Do the operational test of the pack temperature control system (Ref. AMM TASK 21-61-00-710-001).
Subtask 21-61-18-410-051-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 access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) FOR [10HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
(b) FOR [11HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
Subtask 21-61-18-862-050-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) FOR [10HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)
(b) FOR [11HM9] (SENSOR-COMPRESSOR PNEUMATIC OVHT)