DOC AIRBUS | AMM A320FInstallation of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator [PW11]
TASK 75-32-01-400-801-A
Installation of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 75-32-01-941-051-A ** ON A/C NOT FOR ALL
Subtask 75-32-01-420-050-A ** ON A/C NOT FOR ALL
Subtask 75-32-01-860-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:13:40 UTC
Installation of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.P06-028) | anti-seize compound |
| (Material No.P06-054) | anti−seize paste |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-00-720-811-A | Test No. 3A - Idle Power Test |
| TASK 71-00-00-860-832-A | Procedure to Prevent Engine Motoring and to Stop the Electrical Supply to the EEC |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 72-21-08-400-801-A | Installation of the Fan Exit Liner Segments |
| TASK 73-21-00-710-807-A | Test No.6 - EEC Operation Test (Idle Test) |
| TASK 73-21-00-710-809-A | Test No.15 - Operation Test (Dry Motor) of the FADEC System Engine Actuators |
| TASK 73-25-34-400-802-A | Installation of the Engine Interface Unit (EIU) |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
Low Pressure Compressor (LPC) (2.5) Bleed Valve ActuatorSubtask 75-32-01-941-051-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832)
Subtask 75-32-01-010-052-A ** ON A/C NOT FOR ALL (1) Make sure that you did the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832)
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 75-32-01-040-051-A ** ON A/C NOT FOR ALL (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 75-32-01-010-053-A ** ON A/C NOT FOR ALL WARNING:
YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
(1) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). D. Get Access
(1) Make sure that the left thrust-reverser cowl-doors is open (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
4. Procedure(1) Make sure that the left thrust-reverser cowl-doors is open (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
Subtask 75-32-01-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator
(a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
(2) Install the actuator (4) as follows:
(a) Make sure that the actuator (4) piston is retracted.
(b) Apply anti−seize paste (Material No.P06-054) to the threads of the two captive bolts (5) and (6).
(d) Apply anti−seize paste (Material No.P06-054) to the two bolts (2) and (3).
(f) TORQUE the two captive bolts (5) equally and in small increments to between 60 and 50 lbf.in (0.68 and 0.57 m.daN )
.
(g) TORQUE the two captive bolts (6) equally and in small increments to between 115 and 100 lbf.in (1.30 and 1.13 m.daN ).
(h) TORQUE the two bolts (3) to between 70 and 60 lbf.in (0.79 and 0.68 m.daN ).
(i) TORQUE the two bolts (2) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ).
(j) Attach the connecting link to the actuator (4) as follows:
1 Apply anti-seize compound (Material No.P06-028) to the bolt (7).
3 TORQUE the shoulder bolt (7) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ).
(3) Connect the two servo fuel tubes (CP04) and (CR04) and the drain tube (DR11) to the actuator (4) as follows:
(b) Torque the larger servo return fuel tube (CR04) as follows:
1 TORQUE the B-nut to between 525 and 425 lbf.in (5.93 and 4.80 m.daN ).
(c) Torque the smaller servo pressure fuel tube (CP04) as follows:
1 TORQUE the B-nut to between 375 and 340 lbf.in (4.24 and 3.84 m.daN ).
(d) Connect the drain tube (DR11) to the actuator as follows:
1 Connect the tube (DR11) to the actuator (4).
2 TORQUE the B-nut to between 75 and 65 lbf.in (0.85 and 0.73 m.daN ).
(4) Connect the (W04) wiring harness connector (P28) to the actuator receptacle (J28) as follows:
(b) Push lightly inward on the connector while you tighten the coupling ring.
(c) Use the PLIERS - JAWED, SOFT and tighten the connector against the receptacle.
(d) Make sure that you can feel the ratchet feature.
(e) While you tighten, push the connector in and from side to side.
(f) Tighten the connector until the PLIERS - JAWED, SOFT slip on the connector ring.
(5) Install the insulation blanket (17) on the actuator (4).
(6) Install the fan exit liner segment (Ref. AMM TASK 72-21-08-400-801).
(7) Examine the assembly for unwanted objects, damage and correct assembly.
5. Close-upCAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
CAUTION:
REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
(1) (a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
(2) Install the actuator (4) as follows:
(a) Make sure that the actuator (4) piston is retracted.
(b) Apply anti−seize paste (Material No.P06-054) to the threads of the two captive bolts (5) and (6).
NOTE: For new or refurbished bolts or nuts with baked on lubricant, do not do the wet application.
(c) Install the actuator (4) on the Compressor Intermediate Case (CIC) bulkhead with the four captive bolts (5) and (6). (d) Apply anti−seize paste (Material No.P06-054) to the two bolts (2) and (3).
NOTE: For new or refurbished bolts or nuts with baked on lubricant, do not do the wet application.
(e) Install the bracket (1) to the bracket and actuator (4) with the two bolts (2) and two bolts (3). (f) TORQUE the two captive bolts (5) equally and in small increments to between 60 and 50 lbf.in (0.68 and 0.57 m.daN )
. (g) TORQUE the two captive bolts (6) equally and in small increments to between 115 and 100 lbf.in (1.30 and 1.13 m.daN )
. (h) TORQUE the two bolts (3) to between 70 and 60 lbf.in (0.79 and 0.68 m.daN )
. (i) TORQUE the two bolts (2) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN )
. (j) Attach the connecting link to the actuator (4) as follows:
1 Apply anti-seize compound (Material No.P06-028) to the bolt (7).
NOTE: For new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
2 Attach the link to the actuator (4) with the shoulder bolt (7). 3 TORQUE the shoulder bolt (7) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN )
. (3) Connect the two servo fuel tubes (CP04) and (CR04) and the drain tube (DR11) to the actuator (4) as follows:
CAUTION:
USE A SECOND WRENCH TO HOLD THE MATING PARTS WHEN YOU LOOSEN OR TIGHTEN THE TUBE OR HOSE NUTS. IF YOU DO NOT OBEY THIS CAUTION, YOU CAN TWIST OR CAUSE DAMAGE TO THE TUBES OR HOSES.
(a) Connect the tubes (CP04) and (CR04) to the actuator (4). (b) Torque the larger servo return fuel tube (CR04) as follows:
1 TORQUE the B-nut to between 525 and 425 lbf.in (5.93 and 4.80 m.daN )
. (c) Torque the smaller servo pressure fuel tube (CP04) as follows:
1 TORQUE the B-nut to between 375 and 340 lbf.in (4.24 and 3.84 m.daN )
. (d) Connect the drain tube (DR11) to the actuator as follows:
1 Connect the tube (DR11) to the actuator (4).
2 TORQUE the B-nut to between 75 and 65 lbf.in (0.85 and 0.73 m.daN )
. (4) Connect the (W04) wiring harness connector (P28) to the actuator receptacle (J28) as follows:
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTOR AND RECEPTACLE ARE CLEAN WHEN YOU CONNECT THEM. DIRTY CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
(a) Examine, align and engage the connector. (b) Push lightly inward on the connector while you tighten the coupling ring.
(c) Use the PLIERS - JAWED, SOFT and tighten the connector against the receptacle.
(d) Make sure that you can feel the ratchet feature.
(e) While you tighten, push the connector in and from side to side.
(f) Tighten the connector until the PLIERS - JAWED, SOFT slip on the connector ring.
(5) Install the insulation blanket (17) on the actuator (4).
(6) Install the fan exit liner segment (Ref. AMM TASK 72-21-08-400-801).
(7) Examine the assembly for unwanted objects, damage and correct assembly.
CAUTION:
INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.
(8) Make sure that you install COVER - PROTECTION as necessary to prevent damage to the engine. l Subtask 75-32-01-860-050-A ** ON A/C NOT FOR ALL
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 left thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
Subtask 75-32-01-440-050-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 left thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 75-32-01-410-050-A ** ON A/C NOT FOR ALL C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802)
Subtask 75-32-01-720-050-A ** ON A/C NOT FOR ALL (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802)
D. Tests
(1) Do the test N°3 - Idle power test (Ref. AMM TASK 71-00-00-720-811).
(3) Do the test N°15 - Operation Test (Dry Motor) of the Engine Actuators (Ref. AMM TASK 73-21-00-710-809).
(1) Do the test N°3 - Idle power test (Ref. AMM TASK 71-00-00-720-811).
NOTE: You can do this test at the same time as test No. 6 -EEC idle test
(2) Do the test N°6 - EEC - Idle test (Ref. AMM TASK 73-21-00-710-807). (3) Do the test N°15 - Operation Test (Dry Motor) of the Engine Actuators (Ref. AMM TASK 73-21-00-710-809).