DOC AIRBUS | AMM A320FInstallation of the Tee Gearbox
TASK 27-84-42-400-001-A
Installation of the Tee Gearbox
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 27-84-42-860-052-A
Subtask 27-84-42-410-050-A
[Rev.10 from 2021]
2026.03.31 23:56:44 UTC
Installation of the Tee Gearbox
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: 6005CM
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 | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 3.80 and 2.80 m.N (33.63 and 24.78 lbf.in )  | |
| No specific | Torque wrench: range to between 5.64 and 5.09 m.N (49.91 and 45.04 lbf.in ) | |
| No specific | Torque wrench: range to between 12.4 and 10.2 m.N (109.73 and 90.27 lbf.in ) | |
| 98D27504030001 | 2 | LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT |
| 98D27803000000 | 1 | LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FDB1) | Mineral Oil base Grease-Anti-Fretting Paste - |
| (Material No.06AEB2) | Polysulfide Sealant-Low Adhesion Fillet Structure |
| (Material No.08BBB1) | Non Aqueous Cleaner-- Petroleum Based - |
| (Material No.12ACB1) | Corrosion Preventive Compound-Heavy Duty Hard Film - |
| (Material No.12AGC2) | Corrosion Preventive Compound-- Soft Film System |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191BB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 20-28-00-912-803-A | Bonding Surface Preparation |
| 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 27-80-00-866-005-A | Retracting the Slats on the Ground |
| 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 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 |
Tee GearboxSubtask 27-84-42-860-052-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 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the slat/flap control lever (Ref. AMM TASK 27-00-00-480-002).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at access panel 191BB.
(4) Make sure that access panel 191BB is removed (Ref. AMM TASK 53-35-13-000-002).
(5) Make sure that the Green and Blue hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(6) Make sure that the WARNING NOTICE(S) is (are) 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).
Subtask 27-84-42-865-051-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 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the slat/flap control lever (Ref. AMM TASK 27-00-00-480-002).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at access panel 191BB.
(4) Make sure that access panel 191BB is removed (Ref. AMM TASK 53-35-13-000-002).
(5) Make sure that the Green and Blue hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(6) Make sure that the WARNING NOTICE(S) is (are) 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).
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 |
| ** ON A/C NOT FOR ALL | |||
| 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 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/115VAC | 53HH | W22 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/28VDC | 55HH | W21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/28VDC | 56HH | Y21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/115VAC | 54HH | Y20 |
NOTE: The gearbox is a unit filled with grease and is not a hermetically sealed unit. It is normal for this grease to have some oil separation. The external surface of the gearbox can be moist with this separated oil as it is not a sealed unit. However, any separated oil in the unit that touches the grease will be changed back during operation. The oil separation will decrease during in-service operation until the lubricant is in a condition that is stable. This is normal and will not cause damage to the unit.
Subtask 27-84-42-910-050-A A. Preparation for the Installation
(1) To install the same gearbox, clean the splined surfaces of the connections with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) .
(2) Apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) on the face of tee gearbox 6005CM (12) which touches the support bracket.
(3) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) on the splines of the input universal joint (7).
Subtask 27-84-42-420-050-A (1) To install the same gearbox, clean the splined surfaces of the connections with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) .
(2) Apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) on the face of tee gearbox 6005CM (12) which touches the support bracket.
(3) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) on the splines of the input universal joint (7).
B. Installation of the Tee Gearbox
(1) Prepare the surface of the bonding point(s) (Ref. AMM TASK 20-28-00-912-803).
(2) Install the input universal joint (7) as follows:
(a) Put the retainer spring (11) temporarily in position on the shaft of the universal joint (7).
(b) Engage the input universal joint (7) of the tee gearbox (12) in the tee gearbox (12) input.
(c) Install the pin (6).
(d) Safety the pin (6) with the retainer spring (11).
(3) Connect torque shaft 6004CM (8) as follows:
(a) Put the tee gearbox (12) in position.
(b) Make sure that the flange holes of the torque shaft (8) are aligned with the flange holes of the input universal joint (7).
(c) If the flange holes of the torque shaft (8) are not aligned with the flange holes of the input universal joint (7), continue as follows:
1 Turn the input universal joint (7) as necessary to align them.
(d) Connect the torque shaft (8) to the input universal joint (7).
(e) Install the bolts (9) and the nuts (10).
(f) TORQUE the nuts (10) to between 12.4 and 10.2 m.N (109.73 and 90.27 lbf.in ).
(g) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the bolts (9) and the nuts (10).
(4) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) on the splines of the right input universal-joint (13).
(5) Engage the right input universal-joint (13) of tee gearbox (12) in the right input of the tee gearbox (12).
(6) Put the tee gearbox (12) in position on the support bracket.
(7) Attach the tee gearbox (12) to the support bracket with the washers (15) and the bolts (14).
(8) Tighten the bolts (14).
(9) Do the electrical resistance measurement and the final protection of the bonding point(s) (Ref. AMM TASK 20-28-00-912-802).
(10) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the heads of the bolts (14).
(11) Examine the assembly of the input universal joint (13) as follows:
(a) Measure dimension X. Dimension X must be a minimum of 6.5 MM (0.256 IN.).
(b) Make sure that you cannot see the spline engagement groove.
(12) If you can see the spline engagement groove, continue as follows:
(a) Do a check of the related torque shafts, universal joints and gearboxes for correct installation.
(13) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) on the splines of the left input universal-joint (5).
(14) Engage the left input universal-joint (5) of tee gearbox (12) in the left input of the tee gearbox (12).
(15) Install the torque shaft 6006CM (4) as follows:
(a) Put the torque shaft (4) in position.
(b) Make sure that the flange holes of the torque shaft (4) are aligned with the flange holes of the left input universal-joint (5).
(c) If the flange holes of the torque shaft (4) are not aligned with the flange holes of the left input universal-joint (5), continue as follows:
1 Remove the left input universal-joint (5).
2 Turn the left input universal-joint (5) the number of splines necessary to align it.
3 Install the left input universal-joint (5).
(d) Connect the torque shaft (4) to the left input universal-joint (5).
(e) Install the bolts (17) and the nuts (16).
(f) Examine the assembly of the left input universal-joint (5) as follows:
1 Measure dimension X. Dimension X must be a minimum of 6.5 MM (0.256 IN.).
2 Make sure that you cannot see the spline engagement groove.
(g) If you can see the spline engagement groove, continue as follows:
1 Do a check of the related torque shafts, universal joints and gearboxes for correct installation.
(h) TORQUE the nuts (16) to between 12.4 and 10.2 m.N (109.73 and 90.27 lbf.in ).
(i) Apply Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) on the bolts (17) and the nuts (16).
Subtask 27-84-42-080-050-A (1) Prepare the surface of the bonding point(s) (Ref. AMM TASK 20-28-00-912-803).
(2) Install the input universal joint (7) as follows:
(a) Put the retainer spring (11) temporarily in position on the shaft of the universal joint (7).
(b) Engage the input universal joint (7) of the tee gearbox (12) in the tee gearbox (12) input.
(c) Install the pin (6).
(d) Safety the pin (6) with the retainer spring (11).
(3) Connect torque shaft 6004CM (8) as follows:
(a) Put the tee gearbox (12) in position.
(b) Make sure that the flange holes of the torque shaft (8) are aligned with the flange holes of the input universal joint (7).
(c) If the flange holes of the torque shaft (8) are not aligned with the flange holes of the input universal joint (7), continue as follows:
1 Turn the input universal joint (7) as necessary to align them.
(d) Connect the torque shaft (8) to the input universal joint (7).
(e) Install the bolts (9) and the nuts (10).
(f) TORQUE the nuts (10) to between 12.4 and 10.2 m.N (109.73 and 90.27 lbf.in )
. (g) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the bolts (9) and the nuts (10).
(4) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) on the splines of the right input universal-joint (13).
(5) Engage the right input universal-joint (13) of tee gearbox (12) in the right input of the tee gearbox (12).
(6) Put the tee gearbox (12) in position on the support bracket.
(7) Attach the tee gearbox (12) to the support bracket with the washers (15) and the bolts (14).
(8) Tighten the bolts (14).
(9) Do the electrical resistance measurement and the final protection of the bonding point(s) (Ref. AMM TASK 20-28-00-912-802).
(10) Apply Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) on the heads of the bolts (14).
(11) Examine the assembly of the input universal joint (13) as follows:
(a) Measure dimension X. Dimension X must be a minimum of 6.5 MM (0.256 IN.).
(b) Make sure that you cannot see the spline engagement groove.
(12) If you can see the spline engagement groove, continue as follows:
(a) Do a check of the related torque shafts, universal joints and gearboxes for correct installation.
(13) Apply Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) on the splines of the left input universal-joint (5).
(14) Engage the left input universal-joint (5) of tee gearbox (12) in the left input of the tee gearbox (12).
(15) Install the torque shaft 6006CM (4) as follows:
(a) Put the torque shaft (4) in position.
(b) Make sure that the flange holes of the torque shaft (4) are aligned with the flange holes of the left input universal-joint (5).
(c) If the flange holes of the torque shaft (4) are not aligned with the flange holes of the left input universal-joint (5), continue as follows:
1 Remove the left input universal-joint (5).
2 Turn the left input universal-joint (5) the number of splines necessary to align it.
3 Install the left input universal-joint (5).
(d) Connect the torque shaft (4) to the left input universal-joint (5).
(e) Install the bolts (17) and the nuts (16).
(f) Examine the assembly of the left input universal-joint (5) as follows:
1 Measure dimension X. Dimension X must be a minimum of 6.5 MM (0.256 IN.).
2 Make sure that you cannot see the spline engagement groove.
(g) If you can see the spline engagement groove, continue as follows:
1 Do a check of the related torque shafts, universal joints and gearboxes for correct installation.
(h) TORQUE the nuts (16) to between 12.4 and 10.2 m.N (109.73 and 90.27 lbf.in )
.(i) Apply Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) on the bolts (17) and the nuts (16).
C. Removal of the Locking Tools
(1) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT to unlock 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 to unlock the left slat transmission (Ref. AMM TASK 27-50-00-000-003).
(3) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION (Ref. AMM TASK 27-00-00-080-002) from the slat/flap control lever.
Subtask 27-84-42-860-051-A (1) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT to unlock 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 to unlock the left slat transmission (Ref. AMM TASK 27-50-00-000-003).
(3) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION (Ref. AMM TASK 27-00-00-080-002) from the slat/flap control lever.
D. Preparation for the Test
(1) Remove the WARNING NOTICE(S).
(2) Make sure that the work area is clean and clear of tools and other items.
Subtask 27-84-42-865-052-A (1) Remove the WARNING NOTICE(S).
(2) Make sure that the work area is clean and clear of tools and other items.
E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-84-42-710-050-A 5. Close-up| 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 27-84-42-410-050-A
A. Close Access
(1) Install the bellows (2) as follows:
(a) Install the V-clamp (3), bellows (2) and clamp (1).
(2) TORQUE the V-clamp (3) to between 5.64 and 5.09 m.N (49.91 and 45.04 lbf.in ).
(a) TORQUE the clamp (1) to between 3.80 and 2.80 m.N (33.63 and 24.78 lbf.in ).
(3) Install access panel 191BB (Ref. AMM TASK 53-35-13-400-002).
(4) Make sure that the work area is clean and clear of tools and other items.
(5) Remove the access platform(s).
Subtask 27-84-42-865-053-A (1) Install the bellows (2) as follows:
(a) Install the V-clamp (3), bellows (2) and clamp (1).
(2) TORQUE the V-clamp (3) to between 5.64 and 5.09 m.N (49.91 and 45.04 lbf.in )
. (a) TORQUE the clamp (1) to between 3.80 and 2.80 m.N (33.63 and 24.78 lbf.in )
. (3) Install access panel 191BB (Ref. AMM TASK 53-35-13-400-002).
(4) Make sure that the work area is clean and clear of tools and other items.
(5) Remove the access platform(s).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 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 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/115VAC | 53HH | W22 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/28VDC | 55HH | W21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/28VDC | 56HH | Y21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/115VAC | 54HH | Y20 |