DOC AIRBUS | AMM A320FInstallation of the Power Control Unit of the Slat System
TASK 27-84-51-400-001-A
Installation of the Power Control Unit of the Slat System
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 27-84-51-860-052-A
Subtask 27-84-51-910-050-A
Subtask 27-84-51-860-053-A
[Rev.10 from 2021]
2026.03.31 23:57:39 UTC
Installation of the Power Control Unit of the Slat System
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 6001CM
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 3M (10 FT)- ADJUSTABLE |
| No specific | 1 | CONTAINER - HYDRAULIC FLUID RESISTANT |
| No specific | AR | TIE WRAP |
| No specific | 1 | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in )  | |
| No specific | Torque wrench: range to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft ) | |
| No specific | Torque wrench: range to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) | |
| 98D27504030001 | 2 | LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT |
| 98D27803500001 | 1 | LOCKING TOOL ZERO POS |
| 98D27803500002 | 1 | LOCKING TOOL ZERO POS |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.02ABA1) | Phosphate Ester Hydraulic Fluid-General Power - - |
| (Material No.03FDB1) | Mineral Oil base Grease-Anti-Fretting Paste - |
| (Material No.04QAB2) | Coating_- Flexible Structure |
| (Material No.06AAA1) | Polysulfide Sealant_General Purpose Brushable - |
| (Material No.08BBB1) | Non Aqueous Cleaner-- Petroleum Based - |
| (Material No.12AGC2) | Corrosion Preventive Compound-- Soft Film System |
| (Material No.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191KB |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 20 | COTTER PIN | AIPC 27-84-03-06-100 |
| 20 | COTTER PIN | AIPC 27-84-83-04-160 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-12-29-611-001-A | Fill the Hydraulic Fluid Reservoir with a Hand Pump |
| TASK 12-12-29-611-002-A | Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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 27-00-00-080-002-A | Removal of the Flap/Slat Control-Lever Locking Tool (98D27803000000) |
| TASK 27-00-00-480-002-A | Installation of the Flap/Slat Control-Lever Locking Tool (98D27803000000) |
| TASK 27-50-00-000-003-A | Removal of the Lock-Torque Shaft - Flaps and Slats (98D27504030001) |
| TASK 27-50-00-400-003-A | Installation of the Lock-Torque Shaft - Flaps and Slats (98D27504030001) |
| TASK 27-80-00-860-801-A | Readout of the Slat Position Pickoff Unit (PPU) Data |
| TASK 27-80-00-866-005-A | Retracting the Slats on the Ground |
| TASK 27-81-00-820-001-A | Manual Adjustment of the Position Pick-Off Units |
| TASK 27-84-00-710-001-A | Operational Test of the Slat System |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 29-10-00-863-001-A | Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-863-003-A | Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-863-003-A-01 | Pressurize the Blue Hydraulic System with the Blue Electric Pump |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| TASK 29-14-00-614-002-A | Pressurization of the Hydraulic Reservoirs through the Ground Connector |
| TASK 29-14-00-614-002-A-01 | Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU) |
| TASK 29-23-00-863-001-A | Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump |
| TASK 32-12-00-410-001-A | Close the Main Gear Doors after Access |
Power Control UnitSubtask 27-84-51-860-052-A
A. Aircraft Maintenance Configuration
(1) Make sure that the slats are in the 0 degree position (Ref. AMM TASK 27-80-00-866-005).
(2) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS is installed (Ref. AMM TASK 27-00-00-480-002) on the slat/flap control lever.
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the opening of the main door of the main gear.
(4) Make sure that the Green and the Blue hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(5) Make sure that the reservoirs of the Green and the Blue hydraulic systems are depressurized (Ref. AMM TASK 29-14-00-614-001).
(6) Make sure that the WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic systems.
(7) Make sure that the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed to lock the left slat transmission (Ref. AMM TASK 27-50-00-400-003).
(8) Make sure that the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed to lock the right slat transmission (Ref. AMM TASK 27-50-00-400-003).
(9) Make sure that a CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the Power Control Unit (PCU) (1).
Subtask 27-84-51-865-051-A (1) Make sure that the slats are in the 0 degree position (Ref. AMM TASK 27-80-00-866-005).
(2) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS is installed (Ref. AMM TASK 27-00-00-480-002) on the slat/flap control lever.
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the opening of the main door of the main gear.
(4) Make sure that the Green and the Blue hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(5) Make sure that the reservoirs of the Green and the Blue hydraulic systems are depressurized (Ref. AMM TASK 29-14-00-614-001).
(6) Make sure that the WARNING NOTICE(S) in position to tell persons not to pressurize the hydraulic systems.
(7) Make sure that the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed to lock the left slat transmission (Ref. AMM TASK 27-50-00-400-003).
(8) Make sure that the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed to lock the right slat transmission (Ref. AMM TASK 27-50-00-400-003).
(9) Make sure that a CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the Power Control Unit (PCU) (1).
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 | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
Subtask 27-84-51-910-050-A
A. Preparation for Installation
(1) To install the same Power Control Unit (PCU), clean the splined surfaces of the connections with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) .
(2) Clean the mounting bushes and make sure that they are in a good condition.
Subtask 27-84-51-420-051-C (1) To install the same Power Control Unit (PCU), clean the splined surfaces of the connections with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) .
(2) Clean the mounting bushes and make sure that they are in a good condition.
B. Installation of the Power Control Unit
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the PCU (1) in position.
(4) Install the bush (2) and the attachment bolt (27).
(5) Attach the PCU (1) to the attachment rod assembly (22) with the bush (17) and the bolt (16).
(6) Attach the PCU (1) to the adjustable rod assembly (23) with the bush (25) and the bolt (26).
(7) Install the washer (3) and the nut (4) on the attachment bolt (27).
(8) Tighten the nut (4).
(9) Install the bolt (28) through the attachment bolt (27).
(10) Install the washer (5) and the nut (6) on the bolt (28).
(11) Tighten and safety the nut (6) with lockwire14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(12) Install the washer (19) and the nut (18) on the bolt (16) at the attachment rod assembly (22).
(13) Tighten and safety the nut (18) with the AIPC 27-84-03-06-100 COTTER PIN (20) or AIPC 27-84-83-04-160 COTTER PIN (20).
(14) Install the washer (19) and the nut (18) on the bolt (26) at the adjustable rod assembly (23).
(15) Tighten and safety the nut (18) with the AIPC 27-84-03-06-100 COTTER PIN (20) or AIPC 27-84-83-04-160 COTTER PIN (20).
(16) At the bonding point continue as follows:
(a) Put the bonding jumper (9) in position.
(b) Attach the bonding jumper (9) with the washer (8) and the screw (7) (Ref. AMM TASK 20-28-00-912-802).
(c) Seal the screw (7) with Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) .
(d) Apply Coating_- Flexible Structure (Material No.04QAB2) (dyed blue) to the bonding point.
(17) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) to the splines of the input universal joint (10).
(18) Engage the input universal joint (10) in the input of the PCU (1).
(19) Make sure that you can install the pin (14). If not, turn the universal joint by the necessary number of splines.
(20) Install the pin (14) and safety it with the spring (15).
(21) Install the torque shaft 6002CM (11) as follows:
(22) Put the torque shaft (11) in position.
(23) Make sure that the flange holes of the torque shaft (11) are in line with the flange holes of the input universal joint (10).
(a) If necessary, open the quick-release access panel 191KB (panel of the LH Air Conditioning Compartment) to inspect this interface.
(a) Remove the torque shaft (11) from the bevel gearbox.
(b) Turn the input universal joint (29) by the number of splines necessary to align the flange halves of the universal joint (10) and the torque shaft (11).
(26) Install the nuts (13) on the bolts (12).
(27) TORQUE the nuts (13) to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in ).
(28) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to the nuts (13) and the bolts (12).
(29) Install the pin (14).
(30) Safety the pin (14) with the spring (15).
(31) Remove the blanking caps from the electrical connectors.
(32) Connect the electrical connectors 4CN-A, 4CN-B, 25CV-A, 28CV-B, 28CV-A, and 26CV-A.
(33) Install the clamps which attach the electrical leads to the PCU (1).
(34) Remove the blanking caps from the line ends (50).
(35) Make sure that the hydraulic line end-fittings are serviceable.
(36) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the threads of the line end fittings.
(37) Remove the blanking plugs from the ports of the PCU (1).
(38) Connect the hydraulic lines (50) to the PCU (1).
(39) TORQUE the union nuts of the hydraulic lines (50) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ).
(40) Connect the case drain lines (59) and (60) .
(41) TORQUE the union nuts of the case drain lines (59) and (60) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft ).
(42) Connect the seal drain lines (40) and attach them with the TIE WRAP (41).
Subtask 27-84-51-860-051-A CAUTION:
USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.
CAUTION:
YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS LUBRICANT.
(1) Clean the component interfaces and the adjacent area.(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the PCU (1) in position.
(4) Install the bush (2) and the attachment bolt (27).
(5) Attach the PCU (1) to the attachment rod assembly (22) with the bush (17) and the bolt (16).
(6) Attach the PCU (1) to the adjustable rod assembly (23) with the bush (25) and the bolt (26).
(7) Install the washer (3) and the nut (4) on the attachment bolt (27).
(8) Tighten the nut (4).
(9) Install the bolt (28) through the attachment bolt (27).
(10) Install the washer (5) and the nut (6) on the bolt (28).
(11) Tighten and safety the nut (6) with lockwire
(12) Install the washer (19) and the nut (18) on the bolt (16) at the attachment rod assembly (22).
(13) Tighten and safety the nut (18) with the AIPC 27-84-03-06-100 COTTER PIN (20) or AIPC 27-84-83-04-160 COTTER PIN (20).
(14) Install the washer (19) and the nut (18) on the bolt (26) at the adjustable rod assembly (23).
(15) Tighten and safety the nut (18) with the AIPC 27-84-03-06-100 COTTER PIN (20) or AIPC 27-84-83-04-160 COTTER PIN (20).
(16) At the bonding point continue as follows:
(a) Put the bonding jumper (9) in position.
(b) Attach the bonding jumper (9) with the washer (8) and the screw (7) (Ref. AMM TASK 20-28-00-912-802).
(c) Seal the screw (7) with Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) .
(d) Apply Coating_- Flexible Structure (Material No.04QAB2) (dyed blue) to the bonding point.
(17) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) to the splines of the input universal joint (10).
(18) Engage the input universal joint (10) in the input of the PCU (1).
(19) Make sure that you can install the pin (14). If not, turn the universal joint by the necessary number of splines.
(20) Install the pin (14) and safety it with the spring (15).
(21) Install the torque shaft 6002CM (11) as follows:
(22) Put the torque shaft (11) in position.
(23) Make sure that the flange holes of the torque shaft (11) are in line with the flange holes of the input universal joint (10).
(a) If necessary, open the quick-release access panel 191KB (panel of the LH Air Conditioning Compartment) to inspect this interface.
NOTE: You find the small inspection hole near the rear attachment cord of the access panel 191KB.
(24) If the flange holes of the torque shaft (11) are not in line with the flange holes of the input universal joint (10), continue as follows: (a) Remove the torque shaft (11) from the bevel gearbox.
(b) Turn the input universal joint (29) by the number of splines necessary to align the flange halves of the universal joint (10) and the torque shaft (11).
NOTE: If you can not align the flange halves remove the nuts (13) and the bolts (12) and turn the universal joint (29) and the torque shaft (11) as necessary. Install the bolts (12) and nuts (13) as written below.
(25) Install the bolts (12) to connect the torque shaft (11) to the input universal joint (10). (26) Install the nuts (13) on the bolts (12).
(27) TORQUE the nuts (13) to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in )
. (28) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) to the nuts (13) and the bolts (12).
(29) Install the pin (14).
(30) Safety the pin (14) with the spring (15).
(31) Remove the blanking caps from the electrical connectors.
(32) Connect the electrical connectors 4CN-A, 4CN-B, 25CV-A, 28CV-B, 28CV-A, and 26CV-A.
(33) Install the clamps which attach the electrical leads to the PCU (1).
(34) Remove the blanking caps from the line ends (50).
(35) Make sure that the hydraulic line end-fittings are serviceable.
(36) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the threads of the line end fittings.
(37) Remove the blanking plugs from the ports of the PCU (1).
(38) Connect the hydraulic lines (50) to the PCU (1).
(39) TORQUE the union nuts of the hydraulic lines (50) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft )
. (40) Connect the case drain lines (59) and (60) .
(41) TORQUE the union nuts of the case drain lines (59) and (60) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )
. (42) Connect the seal drain lines (40) and attach them with the TIE WRAP (41).
C. Preparation for the Test
(1) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT from the right slat transmission (Ref. AMM TASK 27-50-00-000-003).
(2) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT from the left slat transmission (Ref. AMM TASK 27-50-00-000-003).
(3) Pressurize the reservoirs of the Green and the Blue hydraulic systems (Ref. AMM TASK 29-14-00-614-002).
(4) Make sure that the level of the fluid in the reservoirs is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(5) Pressurize the Green and the Blue hydraulic systems (Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-23-00-863-001) and (Ref. AMM TASK 29-10-00-863-003).
(6) Remove the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS from the slat/flap control lever (Ref. AMM TASK 27-00-00-080-002).
(7) Remove the WARNING NOTICE(S).
(8) Make sure that the work area is clean and clear of tools and other items.
Subtask 27-84-51-865-052-A (1) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT from the right slat transmission (Ref. AMM TASK 27-50-00-000-003).
(2) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT from the left slat transmission (Ref. AMM TASK 27-50-00-000-003).
(3) Pressurize the reservoirs of the Green and the Blue hydraulic systems (Ref. AMM TASK 29-14-00-614-002).
(4) Make sure that the level of the fluid in the reservoirs is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(5) Pressurize the Green and the Blue hydraulic systems (Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-23-00-863-001) and (Ref. AMM TASK 29-10-00-863-003).
(6) Remove the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS from the slat/flap control lever (Ref. AMM TASK 27-00-00-080-002).
(7) Remove the WARNING NOTICE(S).
(8) Make sure that the work area is clean and clear of tools and other items.
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-84-51-710-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
E. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the readout and check of the PPU data (Ref. AMM TASK 27-80-00-860-801).
(3) If the PPU data are not in the limits:
(a) Do the adjustment of the applicable PPU (Ref. AMM TASK 27-81-00-820-001).
(4) Do the operational test of the slat system (Ref. AMM TASK 27-84-00-710-001).
(5) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(6) Make sure that there are no leaks and that no fluid comes out of the seal drain lines (41).
5. Close-up(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the readout and check of the PPU data (Ref. AMM TASK 27-80-00-860-801).
(3) If the PPU data are not in the limits:
(a) Do the adjustment of the applicable PPU (Ref. AMM TASK 27-81-00-820-001).
(4) Do the operational test of the slat system (Ref. AMM TASK 27-84-00-710-001).
(5) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(6) Make sure that there are no leaks and that no fluid comes out of the seal drain lines (41).
Subtask 27-84-51-860-053-A
A. Put the aircraft back to the serviceable condition.
(1) Make sure that the level of the fluid in the relevant hydraulic reservoir is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(2) Remove the container from below the PCU (1).
(3) Remove the access platform(s).
Subtask 27-84-51-410-050-A (1) Make sure that the level of the fluid in the relevant hydraulic reservoir is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(2) Remove the container from below the PCU (1).
(3) Remove the access platform(s).