W DOC AIRBUS | AMM A320F

Installation of the Oil Control Module [PW11]

TASK 79-21-02-400-801-A
Installation of the Oil Control Module

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.
CAUTION: DO NOT LET ENGINE FUEL, OIL OR HYDRAULIC FLUID SPILL ON THE ENGINE. YOU MUST IMMEDIATELY REMOVE UNWANTED FUEL, OIL OR HYDRAULIC FLUID WITH A CLOTH. FUEL, OIL OR HYDRAULIC FLUID CAN CAUSE DAMAGE TO SOME ENGINE PARTS.
ZONE: 400
1. Reason for the Job
Use this procedure to install the oil control module.
For more information about the oil control module, refer to 79-21-00-00 CONF 21 - OIL PRESSURE SYSTEM - DESCRIPTION AND OPERATION.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
COVER - PROTECTION
No specific
Torque wrench: range to between 44 and 38 lbf.in (0.50 and 0.43 m.daN ) T
No specific
Torque wrench: range to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T
No specific
Torque wrench: range to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ) T
No specific
Torque wrench: range to between 225 and 200 lbf.in (2.54 and 2.26 m.daN ) T
No specific
Torque wrench: range to between 375 and 340 lbf.in (4.24 and 3.84 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.P06-054)
compound, paste, anti-seize
 C. Work Zones and Access Panels
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
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
8
FACE SEAL
EIPC 79-21-02-01-050
5
FACE SEAL
EIPC 79-21-02-01-060
33
FACE SEALS
EIPC 79-21-02-01-070
 E. Referenced Information
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 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
TASK 79-00-00-610-801-A
Check and Fill the Engine Oil
TASK 79-21-07-400-801-A
Installation of the Active Oil Damper Valve (AODV)
TASK 79-21-09-400-801-A
Installation of the Engine Fuel/Oil Heat Exchanger Bypass Valve
TASK 79-32-21-400-801-A
Installation of the Oil Temperature Probe
TASK 79-33-21-400-801-A
Installation of the Main Oil Pressure (MOP) Sensor
TASK 79-33-25-400-801-A
Installation of the Low Oil Pressure (LOP) Switch
F Oil Control Module
3. Job Set-up
Subtask 79-21-02-941-051-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 79-21-02-010-052-A ** ON A/C NOT FOR ALL
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.
Subtask 79-21-02-040-051-A ** ON A/C NOT FOR ALL
C. Deactivation of the Thrust Reverser for Maintenance
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).
Subtask 79-21-02-010-053-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Make sure that the left thrust-reverser cowl-doors are 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
CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 79-21-02-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Oil Control Module
   (1) Removal of the protection covers:
CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
     (a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
   (2) Install the oil control module (1) on the Main Gear Box (MGB) as follows:
     (a) Examine the face seal (8) and the face seal (5) to find if you can use them again by the procedure that follows:
       1 Make sure that there is no raised material on the metal surface.
       2 Make sure that the rubber is bonded to the seal plate.
       3 Make sure that no rubber is missing.
       4 Make sure that the rubber seal is not separated from the seal plate.
       5 Make sure that the rubber is not cut or damaged.
       6 Make sure that the rubber material is above the metal surface.
     (b) Align and install the EIPC 79-21-02-01-050 FACE SEAL (8) on the two alignment pins on the MGB.
     (c) Apply the P06-054compound, paste, anti-seize on the threads of the six bolts (3).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (d) Align the oil control module (1) with the two alignment pins and install the oil control module (1) with the six washers (2) and the six bolts (3).
       1 Tighten the six bolts (3) with your fingers.
     (e) Apply the P06-054compound, paste, anti-seize on the threads of the six bolts (6).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (f) Attach the two brackets, the tube plate, the bracket (7) and the EIPC 79-21-02-01-060 FACE SEAL (5) to the oil control module (1) with the six bolts (6).
       1 Tighten the six bolts (6) with your fingers.
     (g) Apply the P06-054compound, paste, anti-seize on the threads of the bolt (4).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (h) Attach the clamp of the tube (LP33) to the oil control module (1) with the bolt (4).
       1 Tighten the bolt (4) with your fingers.
     (i) TORQUE the six bolts (3) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T equally in an opposite pattern until the same torque indication holds.
     (j) TORQUE the six bolts (6) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T equally in an opposite pattern until the same torque indication holds.
     (k) TORQUE the bolt (4) to between 44 and 38 lbf.in (0.50 and 0.43 m.daN ) T.
   (3) Install the tube (LB35) (18) and the brackets (19), (21) and (22) on the oil control module (1) and the MGB as follows:
     (a) Apply the P06-054compound, paste, anti-seize on the threads of the six bolts (20) and the bolt (6).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (b) Attach the bracket (21) to the oil control module (1) with the two bolts (20).
     (c) TORQUE the two bolts (20) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T.
     (d) Attach the bracket (22) to the oil control module (1) with the two bolts (20).
     (e) TORQUE the two bolts (20) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T.
     (f) Attach the bracket (19) to the oil control module (1) and the MGB with the bolt (6) and the two bolts (20).
     (g) TORQUE the bolt (6) and the two bolts (20) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T.
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.
     (h) Connect the one end of the tube (LB35) (18) to the oil control module (1).
     (i) TORQUE the B-nut of the tube (LB35) (18) to between 225 and 200 lbf.in (2.54 and 2.26 m.daN ) T.
   (4) Connect the tube (LP40) to the oil control module (1).
   (5) TORQUE the B-nut of the tube (LP40) to between 375 and 340 lbf.in (4.24 and 3.84 m.daN ) T.
   (6) Install the tube (LP50) (37) on the oil control module (1) and the oil manifold (LU30) as follows:
     (a) Apply the P06-054compound, paste, anti-seize on the threads of the six bolts (35).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (b) Install the tube (LP50) (37) and the two EIPC 79-21-02-01-070 FACE SEALS (33) with the six bolts (35).
       1 Tighten the six bolts (35) with your fingers.
     (c) Apply the P06-054compound, paste, anti-seize on the threads of the bolt (36).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (d) Install the bolt (36) on the clamp (38) and the bracket.
       1 Tighten the bolt (36) with your fingers.
     (e) TORQUE the six bolts (35) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T in small increments until the same torque indication holds.
     (f) TORQUE the bolt (36) to between 44 and 38 lbf.in (0.50 and 0.43 m.daN ) T.
   (7) Install the tube (LP52) (34) on the oil control module (1) and the oil manifold (LU30) as follows:
     (a) Apply the P06-054compound, paste, anti-seize on the threads of the six bolts (35).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (b) Install the tube (LP52) (34) and the EIPC 79-21-02-01-070 FACE SEALS (33) on the oil control module (1) with the three bolts (35).
       1 Tighten the three bolts (35) with your fingers.
     (c) Apply the P06-054compound, paste, anti-seize on the threads of the bolts (36).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (d) Install the tube (LB64) and the clamp on the bracket (48) with the bolt (36).
       1 Tighten the bolt (36) with your fingers.
     (e) TORQUE the six bolts (35) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T in small increments until the same torque indication holds.
     (f) TORQUE the bolt (36) to between 44 and 38 lbf.in (0.50 and 0.43 m.daN ) T.
     (g) Install the tube (LP52) (34), EIPC 79-21-02-01-070 FACE SEALS (33) and bracket (48) on the oil manifold (LU30) with the three bolts (35).
       1 Tighten the three bolts (35) with your fingers.
   (8) Install the tube (LP57) (32) on the oil control module (1) and the Air/Oil Heat Exchanger (AOHX) as follows:
     (a) Apply the P06-054compound, paste, anti-seize on the threads of the three bolts (35) and (59).
       1 For the new or refurbished bolts or nuts with baked-on lubricant, do not do the wet application.
     (b) Install the tube (LP57) (32), EIPC 79-21-02-01-070 FACE SEALS (33) and bracket (58) on the AOHX with the three bolts (59).
       1 Tighten the three bolts (59) with your fingers.
     (c) Install the tube (LP57) (32) and the EIPC 79-21-02-01-070 FACE SEALS (33) on the oil control module (1) with the three bolts (35).
       1 Tighten the three bolts (35) with your fingers.
     (d) TORQUE the three bolts (35) to between 90 and 80 lbf.in (1.02 and 0.90 m.daN ) T in small increments until the same torque indication holds.
     (e) TORQUE the three bolts (59) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ) T in small increments until the same torque indication holds.
     (f) Install the (WC10) wiring harness (4011KS) and the (WC11) wiring harness (4072KS) on the tube (LP57) (32) and the spring clips of the bracket (58).
   (9) Install the fuel/oil heat-exchanger bypass-valve (Ref. AMM TASK 79-21-09-400-801).
   (10) Install the Low Oil Pressure (LOP) switch (Ref. AMM TASK 79-33-25-400-801).
   (11) Install the main oil pressure-sensor (Ref. AMM TASK 79-33-21-400-801).
   (12) Install the active oil damper-valve (Ref. AMM TASK 79-21-07-400-801).
   (13) Install the main oil temperature-probe (Ref. AMM TASK 79-32-21-400-801).
   (14) Fill the engine with oil (Ref. AMM TASK 79-00-00-610-801).
   (15) Examine the assembly for foreign objects, damage and correct assembly.
   (16) Installation of the protection covers:
CAUTION: INSTALL THE PROTECTION COVERS ON ALL OF THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
     (a) Make sure that you install the COVER - PROTECTION as necessary to prevent damage to the engine.
5. Close-up
Subtask 79-21-02-410-051-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 79-21-02-440-050-A ** ON A/C NOT FOR ALL
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 79-21-02-410-050-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 WARNING NOTICE(S).
   (3) 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 79-21-02-720-050-A ** ON A/C NOT FOR ALL
D. Tests
   (1) Do the Test N°3 - idle power test (Ref. AMM TASK 71-00-00-720-811).
[Rev.10 from 2021] 2026.04.01 03:41:34 UTC
"Aviabrain" 2025