DOC AIRBUS | AMM A320FCheck of Plays at Upper and Lower Torque-Link Hinges
TASK 32-21-00-200-804-A
Check of Plays at Upper and Lower Torque-Link Hinges
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Expendable Parts
C. Referenced Information
3. Job Set-up
Subtask 32-21-00-941-092-A
Subtask 32-21-00-210-073-A ** ON A/C NOT FOR ALL
Subtask 32-21-00-942-069-A
[Rev.10 from 2021]
2026.04.01 00:41:51 UTC
Check of Plays at Upper and Lower Torque-Link Hinges
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:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | GAGE 0,30 MM (0,012 IN) - FEELER |
| D23080000 | 1 | PIN-GROUND LOCK,NLG |
| MZ23080000 | 1 | PIN-LOCKING |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | ADJUSTING WASHERS | AIPC 32-21-11-01-020 |
| 2 | ADJUSTING WASHER | AIPC 32-21-11-01-030 |
| 3 | ADJUSTING WASHERS | AIPC 32-21-11-01-040 |
| 1 | ADJUSTING WASHERS | AIPC 32-21-11-30-020 |
| 2 | ADJUSTING WASHER | AIPC 32-21-11-30-030 |
| 3 | ADJUSTING WASHERS | AIPC 32-21-11-30-040 |
| 1 | ADJUSTING WASHERS | AIPC 32-21-11-33-020 |
| 2 | ADJUSTING WASHER | AIPC 32-21-11-33-030 |
| 3 | ADJUSTING WASHERS | AIPC 32-21-11-33-040 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 32-21-27-000-001-A | Removal of the Torque Link Assy |
| TASK 32-21-27-000-002-A | Removal of the Torque-Link Center Hinge |
| TASK 32-21-27-400-001-A | Installation of the Torque Link Assy |
| TASK 32-21-27-400-002-A | Installation of the Torque-Link Center Hinge |
| TASK 32-21-27-000-001-A | Removal of the Torque Link Assy (for corrective action) |
NLG Torque-Link AssemblySubtask 32-21-00-941-092-A
A. Safety Precautions
(1) Make sure that the D23080000 PIN-GROUND LOCK,NLG or the MZ23080000 PIN-LOCKING as an alternative, is in position.
Subtask 32-21-00-860-098-A (1) Make sure that the D23080000 PIN-GROUND LOCK,NLG or the MZ23080000 PIN-LOCKING as an alternative, is in position.
B. Aircraft Maintenance Configuration
(1) Remove the center hinge pin (Ref. AMM TASK 32-21-27-000-002).
4. Procedure(1) Remove the center hinge pin (Ref. AMM TASK 32-21-27-000-002).
Subtask 32-21-00-210-073-A ** ON A/C NOT FOR ALL
A. Inspection/Check of the NLG Torque-Link Assembly
(1) Move each link laterally in the direction of the arrows to locations J'1 and J'3.
(2) Make sure that the wheel axle is perpendicular to the aircraft centerline.
(3) Use the GAGE 0,30 MM (0,012 IN) - FEELER to measure plays J1 and J3.
(4) Make sure that plays J1 and J3 are less than or equal to 0.30 mm (0.012 in.).
(5) If plays J1 and J3 are more than 0.30 mm (0.012 in.), do the steps that follow to:
(b) Measure the thickness of the initially installed washers (1) and (3).
(c) Divide values J1 and J3 by two to get a symmetrical adjustment at locations J1/J'1 and J3/J'3 with the adjusting washers.
(d) Use the value of thickness of the initially installed washers (1) and (3) and the value calculated at paragraph 4. A. (5). (c) to:
(6) Measure dimensions E1 and E2 at the end of each link of the torque link assembly.
(7) Use this formula to calculate thickness K of the AIPC 32-21-11-30-030 ADJUSTING WASHER (2):
(8) Make sure that value K is less than or equal to 5.19 mm (0.2043 in.).
(a) If value K is less than or equal to 5.19 mm (0.2043 in.), install the initially installed washer again.
(b) If value K is more than 5.19 mm (0.2043 in.), replace the initially installed washer (2) with a thicker adjusting washer (2) as follows:
1 Refer to value K to make a selection of the correct adjusting washer (2) dimension:
Subtask 32-21-00-210-073-B ** ON A/C NOT FOR ALL (1) Move each link laterally in the direction of the arrows to locations J'1 and J'3.
(2) Make sure that the wheel axle is perpendicular to the aircraft centerline.
(3) Use the GAGE 0,30 MM (0,012 IN) - FEELER to measure plays J1 and J3.
(4) Make sure that plays J1 and J3 are less than or equal to 0.30 mm (0.012 in.).
(5) If plays J1 and J3 are more than 0.30 mm (0.012 in.), do the steps that follow to:
- Replace the washers (1) and (3) at the upper and lower hinge pins with the thicker washers (1) and (3).
(b) Measure the thickness of the initially installed washers (1) and (3).
(c) Divide values J1 and J3 by two to get a symmetrical adjustment at locations J1/J'1 and J3/J'3 with the adjusting washers.
(d) Use the value of thickness of the initially installed washers (1) and (3) and the value calculated at paragraph 4. A. (5). (c) to:
- Make a selection of the applicable adjusting washers (1) and (3).
- AIPC 32-21-11-01-020 ADJUSTING WASHERS (1) or AIPC 32-21-11-33-020 ADJUSTING WASHERS (1) or AIPC 32-21-11-30-020 ADJUSTING WASHERS (1) at the upper hinge pin, and
- AIPC 32-21-11-01-040 ADJUSTING WASHERS (3) or AIPC 32-21-11-33-040 ADJUSTING WASHERS (3) or AIPC 32-21-11-30-040 ADJUSTING WASHERS (3) at the lower hinge pin.
NOTE: The thickness of the adjusting washer (1) or (3) (part number D61267) is 1.15 mm (0.0453 in.).
The thickness of the adjusting washer (1) or (3) (part number D61267-1) is 1.30 mm (0.0512 in.).
The thickness of the adjusting washer (1) or (3) (part number D61267-2) is 1.50 mm (0.0591 in.).
(e) Install the lower and upper hinge pins (Ref. AMM TASK 32-21-27-400-001) with the applicable washers (1) and (3). The thickness of the adjusting washer (1) or (3) (part number D61267-1) is 1.30 mm (0.0512 in.).
The thickness of the adjusting washer (1) or (3) (part number D61267-2) is 1.50 mm (0.0591 in.).
(6) Measure dimensions E1 and E2 at the end of each link of the torque link assembly.
(7) Use this formula to calculate thickness K of the AIPC 32-21-11-30-030 ADJUSTING WASHER (2):
| ------------------------------------------------------------------------------ |
| ! K = 37 mm (1.46 in.) - 1/2(E1 + E2) ! |
| ------------------------------------------------------------------------------ |
(8) Make sure that value K is less than or equal to 5.19 mm (0.2043 in.).
(a) If value K is less than or equal to 5.19 mm (0.2043 in.), install the initially installed washer again.
(b) If value K is more than 5.19 mm (0.2043 in.), replace the initially installed washer (2) with a thicker adjusting washer (2) as follows:
1 Refer to value K to make a selection of the correct adjusting washer (2) dimension:
- If value K is between 5.20 mm (0.2047 in.) and 5.39 mm (0.2122 in.), install an adjusting washer (2) of dimension 5.20 mm (0.2047 in.).
- If value K is between 5.40 mm (0.2126 in.) and 5.60 mm (0.2205 in.), install an adjusting washer (2) of dimension 5.40 mm (0.2126 in.).
- If value K is more than 5.60 mm (0.2205 in.), replace the torque links (Ref. AMM TASK 32-21-27-000-001) and (Ref. AMM TASK 32-21-27-400-001).
NOTE: The thickness of the adjusting washer (2) (part number D61268) is 5.20 mm (0.2047 in.).
The thickness of the adjusting washer (2) (part number D61268-1) is 5.40 mm (0.2126 in.).
(9) Make sure that plays J1 and J3 are less than or equal to 0.30 mm (0.012 in.). The thickness of the adjusting washer (2) (part number D61268-1) is 5.40 mm (0.2126 in.).
A. Inspection/Check of the NLG Torque-Link Assembly
(1) Move each link laterally in the direction of the arrows to locations J'1 and J'3.
(2) Make sure that the wheel axle is perpendicular to the aircraft centerline.
(3) Use the GAGE 0,30 MM (0,012 IN) - FEELER to measure plays J1 and J3.
(4) Make sure that plays J1 and J3 are less than or equal to 0.30 mm (0.012 in.).
(5) If plays J1 and J3 are more than 0.30 mm (0.012 in.), do the steps that follow to:
(b) Measure the thickness of the initially installed washers (1) and (3).
(c) Divide values J1 and J3 by two to get a symmetrical adjustment at locations J1/J'1 and J3/J'3 with the adjusting washers.
(d) Use the value of thickness of the initially installed washers (1) and (3) and the value calculated at paragraph 4. A. (5). (c) to:
(6) Measure dimensions E1 and E2 at the end of each link of the torque link assembly.
(7) Use this formula to calculate thickness K of the AIPC 32-21-11-33-030 ADJUSTING WASHER (2) or AIPC 32-21-11-01-030 ADJUSTING WASHER (2) or AIPC 32-21-11-30-030 ADJUSTING WASHER (2):
(8) Make sure that value K is less than or equal to 5.19 mm (0.2043 in.).
(a) If value K is less than or equal to 5.19 mm (0.2043 in.), install the initially installed washer again.
(b) If value K is more than 5.19 mm (0.2043 in.), replace the initially installed washer (2) with a thicker adjusting washer (2) as follows:
1 Refer to value K to make a selection of the correct adjusting washer (2) dimension:
5. Close-up(1) Move each link laterally in the direction of the arrows to locations J'1 and J'3.
(2) Make sure that the wheel axle is perpendicular to the aircraft centerline.
(3) Use the GAGE 0,30 MM (0,012 IN) - FEELER to measure plays J1 and J3.
(4) Make sure that plays J1 and J3 are less than or equal to 0.30 mm (0.012 in.).
(5) If plays J1 and J3 are more than 0.30 mm (0.012 in.), do the steps that follow to:
- Replace the washers (1) and (3) at the upper and lower hinge pins with the thicker washers (1) and (3).
(b) Measure the thickness of the initially installed washers (1) and (3).
(c) Divide values J1 and J3 by two to get a symmetrical adjustment at locations J1/J'1 and J3/J'3 with the adjusting washers.
(d) Use the value of thickness of the initially installed washers (1) and (3) and the value calculated at paragraph 4. A. (5). (c) to:
- Make a selection of the applicable adjusting washers (1) and (3).
- AIPC 32-21-11-30-020 ADJUSTING WASHERS (1) or AIPC 32-21-11-33-020 ADJUSTING WASHERS (1) or AIPC 32-21-11-01-020 ADJUSTING WASHERS (1) at the upper hinge pin, and
- AIPC 32-21-11-30-040 ADJUSTING WASHERS (3) or AIPC 32-21-11-33-040 ADJUSTING WASHERS (3) or AIPC 32-21-11-01-040 ADJUSTING WASHERS (3) at the lower hinge pin.
NOTE: The thickness of the adjusting washer (1) or (3) (part number D61267) is 1.15 mm (0.0453 in.).
The thickness of the adjusting washer (1) or (3) (part number D61267-1) is 1.30 mm (0.0512 in.).
The thickness of the adjusting washer (1) or (3) (part number D61267-2) is 1.50 mm (0.0591 in.).
(e) Install the lower and upper hinge pins (Ref. AMM TASK 32-21-27-400-001) with the applicable washers (1) and (3). The thickness of the adjusting washer (1) or (3) (part number D61267-1) is 1.30 mm (0.0512 in.).
The thickness of the adjusting washer (1) or (3) (part number D61267-2) is 1.50 mm (0.0591 in.).
(6) Measure dimensions E1 and E2 at the end of each link of the torque link assembly.
(7) Use this formula to calculate thickness K of the AIPC 32-21-11-33-030 ADJUSTING WASHER (2) or AIPC 32-21-11-01-030 ADJUSTING WASHER (2) or AIPC 32-21-11-30-030 ADJUSTING WASHER (2):
| ------------------------------------------------------------------------------ |
| ! K = 37 mm (1.46 in.) - 1/2(E1 + E2) ! |
| ------------------------------------------------------------------------------ |
(8) Make sure that value K is less than or equal to 5.19 mm (0.2043 in.).
(a) If value K is less than or equal to 5.19 mm (0.2043 in.), install the initially installed washer again.
(b) If value K is more than 5.19 mm (0.2043 in.), replace the initially installed washer (2) with a thicker adjusting washer (2) as follows:
1 Refer to value K to make a selection of the correct adjusting washer (2) dimension:
- If value K is between 5.20 mm (0.2047 in.) and 5.39 mm (0.2122 in.), install an adjusting washer (2) of dimension 5.20 mm (0.2047 in.).
- If value K is between 5.40 mm (0.2126 in.) and 5.60 mm (0.2205 in.), install an adjusting washer (2) of dimension 5.40 mm (0.2126 in.).
- If value K is more than 5.60 mm (0.2205 in.), replace the torque links (Ref. AMM TASK 32-21-27-000-001) and (Ref. AMM TASK 32-21-27-400-001).
NOTE: The thickness of the adjusting washer (2) (part number D61268) is 5.20 mm (0.2047 in.).
The thickness of the adjusting washer (2) (part number D61268-1) is 5.40 mm (0.2126 in.).
(9) Make sure that plays J1 and J3 are less than or equal to 0.30 mm (0.012 in.). The thickness of the adjusting washer (2) (part number D61268-1) is 5.40 mm (0.2126 in.).
Subtask 32-21-00-942-069-A
A. Put the aircraft back to its initial configuration.
(1) Install the center hinge pin (Ref. AMM TASK 32-21-27-400-002) with the applicable washer (2).
(1) Install the center hinge pin (Ref. AMM TASK 32-21-27-400-002) with the applicable washer (2).
NOTE: If value K is less than or equal to 5.19 mm (0.2043 in.), install the initially installed washer (2) again.
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.