DOC AIRBUS | AMM A320FInstallation of the NLG Leg Assembly
TASK 32-21-11-400-003-A
Installation of the NLG Leg Assembly
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 32-21-11-860-056-A ** ON A/C NOT FOR ALL
Subtask 32-21-11-110-053-A
Subtask 32-21-11-860-057-A
[Rev.10 from 2021]
2026.04.01 03:58:35 UTC
Installation of the NLG Leg Assembly
WARNING:
MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING:
MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM. UNWANTED MOVEMENT OF HYDRAULICALLY OPERATED ITEMS CAN CAUSE SERIOUS INJURY AND/OR DAMAGE.
WARNING:
PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
WARNING:
MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobNOTE: Two persons are necessary to do this task.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| No specific | 2 | HOIST 500 KG (1100 LB) |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | 1 | V-BLOCK |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 0.33 and 0.27 m.daN (29.20 and 23.89 lbf.in )  | |
| No specific | Torque wrench: range to between 0.95 and 0.8 m.daN (84.07 and 70.80 lbf.in ) | |
| No specific | Torque wrench: range to between 2.14 and 1.52 m.daN (15.78 and 11.21 lbf.ft ) | |
| No specific | Torque wrench: range to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ) | |
| No specific | Torque wrench: range to between 2.64 and 2.35 m.daN (19.47 and 17.33 lbf.ft ) | |
| No specific | Torque wrench: range to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft ) | |
| No specific | Torque wrench: range to between 5.2 and 4.4 m.daN (38.35 and 32.45 lbf.ft ) | |
| 98D32203500000 | 1 | TOOL-R I NLG |
| 98D32203504000 | 1 | TROLLEY-NLG GROUND HANDLING |
| D23080000 | 1 | PIN-GROUND LOCK,NLG |
| J47554 | 1 | GUIDE CONE |
| J47557 | 1 | GUIDE CONE |
| MZ23080000 | 1 | PIN-LOCKING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03GBB1) | Synthetic Oil base Grease-General Purpose Clay Thickened - |
| (Material No.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| (Material No.06AAA1) | Polysulfide Sealant_General Purpose Brushable - |
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| (Material No.06AAC5) | Polysulfide Sealant-General Purpose Interfay Landing Gear |
| (Material No.06ABF1) | Polysulfide Sealant-Fuel Tank Quick Curing - |
| (Material No.06LDG2) | Non Hardening Jointing Putty-High Temp. Area - Structure |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.08BBF1) | Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 123 | NOSE GEAR WELL |
| 124 | NOSE GEAR WELL |
| 711 | NOSE GEAR |
E. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TASK 07-11-00-581-001-A | Lifting for Aircraft Maintenance Operations |
| TASK 07-11-00-586-002-A | Lowering of the Aircraft for Maintenance Operations |
| TASK 11-00-00-400-012-A | Installation of the Labels on Landing Gear |
| TASK 12-12-32-611-005-A | NLG Shock Absorber Oil Replenishment and Nitrogen Filling (Aircraft on Jacks) |
| TASK 12-22-32-640-002-A | Lubrication of Nose Landing Gear and Doors |
| TASK 20-23-22-910-001-A | Marking of the Unions after Application of Standard or Specific Tightening Torque |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 29-10-00-200-001-A | Check Fluid Level on Reservoir Indicators |
| TASK 29-10-00-863-001-A | Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-863-002-A | Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| 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 29-23-00-863-002-A | Pressurize the Yellow Hydraulic System from the Green Hydraulic System through the PTU with the Ground Service Cart |
| TASK 32-00-00-860-001-A | Flight Configuration Precautions with Electrical Power |
| TASK 32-00-00-860-001-A-01 | Flight Configuration Precautions without Electrical Power |
| TASK 32-00-00-860-002-A | Ground Configuration after Flight Configuration with Electrical Power |
| TASK 32-00-00-860-002-A-01 | Ground Configuration after Flight Configuration without Electrical Power |
| TASK 32-21-41-400-001-A | Installation of the NLG TOWING attachment |
| TASK 32-22-00-010-001-A | Nose Gear Doors - Ground Doors Opening |
| TASK 32-22-00-410-001-A | Nose Gear Doors - Ground Doors Closing |
| TASK 32-22-13-010-001-A | Removal of the NLG Aft Door-Assembly for Access |
| TASK 32-22-13-410-001-A | Installation of the NLG Aft Door-Assembly after Removal for Access |
| TASK 32-22-15-000-001-A | Removal of the NLG Leg Door-Assembly |
| TASK 32-22-15-400-001-A | Installation of the NLG Leg Door-Assembly |
| TASK 32-22-15-400-802-A | Installation of the Link and Fitting Assemblies of the NLG Leg Door |
| TASK 32-31-00-720-002-A | Functional Test of the Normal Extension and Retraction of the Landing Gear |
| TASK 32-31-00-720-003-A | Functional Test of the Normal Extension and Retraction of the Nose Landing Gear |
| TASK 32-33-00-720-001-A | Functional Check of Free-Fall Extension |
| TASK 32-41-12-400-001-A | Installation of the NLG Wheel |
| TASK 32-41-12-400-002-A | Installation of the Axle Sleeve |
| TASK 32-49-51-400-802-A | Installation of the Non-TPIS Kit |
| TASK 32-49-51-400-802-A-01 | Installation of the Non-TPIS Kit (EV NLG) |
| TASK 32-51-00-720-003-A | Functional Test of the Nose Wheel Steering with the Handwheel |
| TASK 32-51-00-820-001-A | Adjustment of the N/WS Zero Position with Adjusting Tool F26630200 for A/C with N/WS Feedback Sensor-Box P/N C24763000, Rudder Trim Angle as Reference |
| TASK 32-51-00-820-001-A-01 | Adjustment of the N/WS Zero Position with Adjusting Tool M46196-100 for A/C with N/WS Feedback Sensor-Box P/N C24763000, Rudder Trim Angle as Reference |
| TASK 32-51-00-820-001-A-02 | Adjustment of the N/WS Zero Position for A/C with N/WS Feedback Sensor-Box P/N E21336000, Rudder Trim Angle as Reference |
| TASK 32-51-00-820-002-A | Adjustment of the N/WS Zero Position with Adjusting Tool F26630200 for A/C with N/WS Feedback Sensor-Box P/N C24763000, NLG Centering Cams as Reference |
| TASK 32-51-00-820-002-A-01 | Adjustment of the N/WS Zero Position with Tool M46196-100 for A/C with N/WS Feedback Sensor-Box P/N C24763000, NLG Centering Cams as Reference |
| TASK 32-51-00-820-002-A-02 | Adjustment of the N/WS Zero Position for A/C with N/WS Feedback Sensor-Box P/N E21336000, NLG Centering Cams as Reference |
| TASK 32-51-00-820-003-A | Adjustment of the N/WS Zero Position with Adjusting Tool F26630200 for A/C with N/WS Feedback Sensor-Box P/N C24763000 with the Nose-Wheel Alignment Tool |
| TASK 32-51-00-820-003-A-01 | Adjustment of the N/WS Zero Position with Adjusting Tool M46196-100 for A/C with N/WS Feedback Sensor-Box P/N C24763000 with the Nose-Wheel Alignment Tool |
| TASK 32-51-00-820-003-A-02 | Adjustment of the N/WS Zero Position for A/C with N/WS Feedback Sensor-Box P/N E21336000 with the Nose-Wheel Alignment Tool |
| TASK 32-51-12-400-001-A | Installation of the Nose - Wheel Steering Electrical Deactivation - Box |
| TASK 32-51-15-400-001-A | Installation of the Swivel Selector Valve |
| TASK 32-51-19-400-001-B | Installation of the Nose Wheel Steering Feedback Sensor Box P/N E21336000 |
| TASK 32-51-42-400-802-A | Installation of the Servicing Plate Kit |
| TASK 32-51-51-400-001-A | Installation of the Nose-Wheel Steering Servo-Control |
| TASK 32-51-51-400-802-A | Installation of the Hydraulic Label Kit |
| TASK 33-43-11-400-001-A | Installation of the Runway Turnoff Light |
| TASK 33-46-11-400-001-A | Installation of the Take Off Light |
| TASK 33-46-12-400-001-A | Installation of the Taxi Light |
| AIPC 11-22-32- | |
| TASK 12-22-00-00 | LUBRICATION - DESCRIPTION AND OPERATION |
Installation of the ToolSubtask 32-21-11-860-056-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) In the cockpit, on panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing-gear control lever.
(2) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system:
(4) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(5) Make sure that the NLG forward doors are open (Ref. AMM TASK 32-22-00-010-001).
(6) Make sure that the NLG aft door-assembly is removed (Ref. AMM TASK 32-22-13-010-001).
(7) Make sure that the NLG leg door-assembly is removed (Ref. AMM TASK 32-22-15-000-001).
(8) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position in zone 123 (124).
(9) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(10) Make sure that the reservoir of the Green hydraulic system is depressurized
(Ref. AMM TASK 29-14-00-614-001).
(11) Make sure that the nose-gear shock absorber is depressurized. To do this, open the charging valve at the top of the shock absorber, as follows:
(a) Remove the blanking cap from the charging valve.
(b) Slowly open the valve by one and a half turn maximum.
(12) Make sure that the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(13) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
Subtask 32-21-11-860-056-B ** ON A/C NOT FOR ALL (1) In the cockpit, on panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing-gear control lever.
(2) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system:
- On panel 40VU in the cockpit
- On the ground service panel of the Green hydraulic system, access door (197CB).
(4) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(5) Make sure that the NLG forward doors are open (Ref. AMM TASK 32-22-00-010-001).
(6) Make sure that the NLG aft door-assembly is removed (Ref. AMM TASK 32-22-13-010-001).
(7) Make sure that the NLG leg door-assembly is removed (Ref. AMM TASK 32-22-15-000-001).
(8) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position in zone 123 (124).
(9) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(10) Make sure that the reservoir of the Green hydraulic system is depressurized
(Ref. AMM TASK 29-14-00-614-001).
(11) Make sure that the nose-gear shock absorber is depressurized. To do this, open the charging valve at the top of the shock absorber, as follows:
(a) Remove the blanking cap from the charging valve.
(b) Slowly open the valve by one and a half turn maximum.
(12) Make sure that the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(13) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
A. Aircraft Maintenance Configuration
(1) In the cockpit, on panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing-gear control lever.
(2) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow hydraulic system:
(4) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(5) Make sure that the NLG forward doors are open (Ref. AMM TASK 32-22-00-010-001).
(6) Make sure that the NLG aft door-assembly is removed (Ref. AMM TASK 32-22-13-010-001).
(7) Make sure that the NLG leg door-assembly is removed (Ref. AMM TASK 32-22-15-000-001).
(8) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position in zone 123 (124).
(9) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(10) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(11) Make sure that the nose-gear shock absorber is depressurized. To do this, open the charging valve at the top of the shock absorber, as follows:
(a) Remove the blanking cap from the charging valve.
(b) Slowly open the valve by one and a half turn maximum.
(12) Make sure that the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(13) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
Subtask 32-21-11-865-060-A (1) In the cockpit, on panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing-gear control lever.
(2) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow hydraulic system:
- On panel 40VU in the cockpit
- On the ground service panel of the Yellow hydraulic system, access door 198CB and 196BB.
(4) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(5) Make sure that the NLG forward doors are open (Ref. AMM TASK 32-22-00-010-001).
(6) Make sure that the NLG aft door-assembly is removed (Ref. AMM TASK 32-22-13-010-001).
(7) Make sure that the NLG leg door-assembly is removed (Ref. AMM TASK 32-22-15-000-001).
(8) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position in zone 123 (124).
(9) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(10) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(11) Make sure that the nose-gear shock absorber is depressurized. To do this, open the charging valve at the top of the shock absorber, as follows:
(a) Remove the blanking cap from the charging valve.
(b) Slowly open the valve by one and a half turn maximum.
(12) Make sure that the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(13) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | L/G/LGCIU/SYS1/NORM | 1GA | C09 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | LGCIU/BAT SPLY/SYS2 | 59GA | R33 |
| 121VU | LGCIU/BAT SPLY/SYS1 | 58GA | R32 |
| ** ON A/C ALL | |||
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY | 4GG | M36 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/CTL | 3GG | M35 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/CTL | 1GG | M34 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY | 2GG | M33 |
| 121VU | HYDRAULIC/LGCIU/SYS2 | 2GA | Q35 |
| 121VU | HYDRAULIC/LGCIU/SYS1/GRND SPLY | 52GA | Q34 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | LGCIU/BAT SPLY/SYS2 | 59GA | R32 |
| 121VU | LGCIU/BAT SPLY/SYS1 | 58GA | R31 |
Subtask 32-21-11-110-053-A
A. Preparation for Installation
(1) Clean the nose gear leg and the removed components with Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - (Material No.08BBF1) and dry them with filtered compressed air.
(2) Make sure that the spherical bearings of the structure move freely, if not, replace them.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Make sure that all the identification plates and labels on the NLG are correctly installed and show the correct data AIPC 11-22-32- (Ref. AMM TASK 11-00-00-400-012).
(5) Install the gear leg on the 98D32203504000 TROLLEY-NLG GROUND HANDLING.
(6) Install the support of the 98D32203500000 TOOL-R I NLG.
(7) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to:
(9) Apply a layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the threads of all nuts, screws, bolts and pins.
Subtask 32-21-11-420-073-B ** ON A/C NOT FOR ALL (1) Clean the nose gear leg and the removed components with Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - (Material No.08BBF1) and dry them with filtered compressed air.
(2) Make sure that the spherical bearings of the structure move freely, if not, replace them.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Make sure that all the identification plates and labels on the NLG are correctly installed and show the correct data AIPC 11-22-32- (Ref. AMM TASK 11-00-00-400-012).
(5) Install the gear leg on the 98D32203504000 TROLLEY-NLG GROUND HANDLING.
(6) Install the support of the 98D32203500000 TOOL-R I NLG.
(7) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to:
- the trunnion shafts of the rotating rods
- the trunnion pins (95)
- the hinge pin (60)
- the pin (32)
- the spherical bearings
This makes the installation easier.
NOTE: For lubricant grease specification and lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).
(8) Clean the attachment hardware with Non Aqueous Cleaner-General - - (Material No.08BAA9) and dry with filtered compressed air. (9) Apply a layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the threads of all nuts, screws, bolts and pins.
B. Installation of the NLG Leg Assy
(1) Engage the nose gear leg in the nose gear well with the 98D32203504000 TROLLEY-NLG GROUND HANDLING.
(2) Put the gear leg between the spherical bearings with the HOIST 500 KG (1100 LB).
(3) Engage the trunnion pins (95) in the bearings and push the gear leg against one of the bearings.
(4) On the opposite side, measure the clearance between the gear leg and the spherical bearing
(5) Make a selection of two washers from the list that follows to get a clearance between 0.1 mm (0.0039 in.) and 0.2 mm (0.0079 in.)
(7) Install new AIPC 32-21-11-40-140 PACKINGS (82) or AIPC 32-21-11-60-140 PACKINGS (82) or AIPC 32-21-11-80-140 PACKINGS (82) on the grease ducts (81).
(9) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the trunnion pins (95) and the washers (86).
(12) Install the bolts (96), the washers (83) and the nuts (84). TORQUE the nuts (84) to between 5.2 and 4.4 m.daN (38.35 and 32.45 lbf.ft ) and safety them with AIPC 32-21-11-40-060 COTTER PINS (85) or AIPC 32-21-11-60-060 COTTER PINS (85) or AIPC 32-21-11-80-060 COTTER PINS (85).
Subtask 32-21-11-420-073-C ** ON A/C NOT FOR ALL (1) Engage the nose gear leg in the nose gear well with the 98D32203504000 TROLLEY-NLG GROUND HANDLING.
(2) Put the gear leg between the spherical bearings with the HOIST 500 KG (1100 LB).
(3) Engage the trunnion pins (95) in the bearings and push the gear leg against one of the bearings.
(4) On the opposite side, measure the clearance between the gear leg and the spherical bearing
(5) Make a selection of two washers from the list that follows to get a clearance between 0.1 mm (0.0039 in.) and 0.2 mm (0.0079 in.)
- AIPC 32-21-11-40-050 WASHER (86) or AIPC 32-21-11-60-050 WASHER (86) or AIPC 32-21-11-80-050 WASHER (86)
- AIPC 32-21-11-40-051 WASHER (87) or AIPC 32-21-11-60-051 WASHER (87) or AIPC 32-21-11-80-051 WASHER (87)
- AIPC 32-21-11-40-052 WASHER (88) or AIPC 32-21-11-60-052 WASHER (88) or AIPC 32-21-11-80-052 WASHER (88)
- AIPC 32-21-11-40-053 WASHER (89) or AIPC 32-21-11-60-053 WASHER (89) or AIPC 32-21-11-80-053 WASHER (89)
- AIPC 32-21-11-40-054 WASHER (90) or AIPC 32-21-11-60-054 WASHER (90) or AIPC 32-21-11-80-054 WASHER (90)
- AIPC 32-21-11-40-055 WASHER (91) or AIPC 32-21-11-60-055 WASHER (91) or AIPC 32-21-11-80-055 WASHER (91)
- AIPC 32-21-11-40-056 WASHER (92) or AIPC 32-21-11-60-056 WASHER (92) or AIPC 32-21-11-80-056 WASHER (92)
- AIPC 32-21-11-40-057 WASHER (93) or AIPC 32-21-11-60-057 WASHER (93) or AIPC 32-21-11-80-057 WASHER (93)
- AIPC 32-21-11-40-058 WASHER (94) or AIPC 32-21-11-60-058 WASHER (94) or AIPC 32-21-11-80-058 WASHER (94)
(7) Install new AIPC 32-21-11-40-140 PACKINGS (82) or AIPC 32-21-11-60-140 PACKINGS (82) or AIPC 32-21-11-80-140 PACKINGS (82) on the grease ducts (81).
NOTE: Replace the packings (82) after each removal of the trunnion pins (95).
(8) Install the grease ducts (81) in the trunnion pins (95). Install the bushings (80) in the trunnion pins (95). (9) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the trunnion pins (95) and the washers (86).
NOTE: For lubricant grease specification and lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).
(10) Install the equipped trunnion pins (95) and the washers (86) or (87) or (88) or (89) or (90) or (91) or (92) or (93) or (94) one on each side. Align the holes of the trunnion pins (95) with the holes of the nose gear leg. NOTE: You must install only one washer on each side. The two washer can have different dimensions .
(11) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the threaded and unthreaded parts of the bolts (96). (12) Install the bolts (96), the washers (83) and the nuts (84). TORQUE the nuts (84) to between 5.2 and 4.4 m.daN (38.35 and 32.45 lbf.ft )
and safety them with AIPC 32-21-11-40-060 COTTER PINS (85) or AIPC 32-21-11-60-060 COTTER PINS (85) or AIPC 32-21-11-80-060 COTTER PINS (85). NOTE: Put the heads of the bolts (96) to the front of the aircraft.
B. Installation of the NLG Leg Assy
(1) Engage the nose gear leg in the nose gear well with the 98D32203504000 TROLLEY-NLG GROUND HANDLING.
(2) Put the gear leg between the spherical bearings with the HOIST 500 KG (1100 LB).
(3) Engage the trunnion pins (95) in the bearings and push the gear leg against one of the bearings.
(4) On the opposite side, measure the clearance J between the gear leg and the spherical bearing.
(5) Make a selection of two washers from the list that follows to get the clearance J between 0.1 mm (0.0039 in.) and 0.2 mm (0.0079 in.):
(a) Make sure that the clearance J is between 0.1 mm (0.0039 in.) and 0.2 mm (0.0079 in.).
(7) Remove the trunnion pins (95).
(8) Install new AIPC 32-21-11-40-140 PACKINGS (82) or AIPC 32-21-11-20-140 PACKINGS (82) on the grease ducts (81).
(10) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the trunnion pins (95) and the washers (86).
(13) Install the bolts (96), washers (83) and nuts (84). TORQUE the nuts (84) to between 5.2 and 4.4 m.daN (38.35 and 32.45 lbf.ft ) and safety them with AIPC 32-21-11-40-060 COTTER PINS (85) or AIPC 32-21-11-20-060 COTTER PINS (85).
Subtask 32-21-11-080-054-B (1) Engage the nose gear leg in the nose gear well with the 98D32203504000 TROLLEY-NLG GROUND HANDLING.
(2) Put the gear leg between the spherical bearings with the HOIST 500 KG (1100 LB).
(3) Engage the trunnion pins (95) in the bearings and push the gear leg against one of the bearings.
(4) On the opposite side, measure the clearance J between the gear leg and the spherical bearing.
(5) Make a selection of two washers from the list that follows to get the clearance J between 0.1 mm (0.0039 in.) and 0.2 mm (0.0079 in.):
- AIPC 32-21-11-40-050 WASHER (86) or AIPC 32-21-11-20-050 WASHER (86)
- AIPC 32-21-11-40-051 WASHER (87) or AIPC 32-21-11-20-051 WASHER (87)
- AIPC 32-21-11-40-052 WASHER (88) or AIPC 32-21-11-20-052 WASHER (88)
- AIPC 32-21-11-40-053 WASHER (89) or AIPC 32-21-11-20-053 WASHER (89)
- AIPC 32-21-11-40-054 WASHER (90) or AIPC 32-21-11-20-054 WASHER (90)
- AIPC 32-21-11-40-055 WASHER (91) or AIPC 32-21-11-20-055 WASHER (91)
- AIPC 32-21-11-40-056 WASHER (92) or AIPC 32-21-11-20-056 WASHER (92)
- AIPC 32-21-11-40-057 WASHER (93) or AIPC 32-21-11-20-057 WASHER (93)
- AIPC 32-21-11-40-058 WASHER (94) or AIPC 32-21-11-20-058 WASHER. (94)
(a) Make sure that the clearance J is between 0.1 mm (0.0039 in.) and 0.2 mm (0.0079 in.).
(7) Remove the trunnion pins (95).
(8) Install new AIPC 32-21-11-40-140 PACKINGS (82) or AIPC 32-21-11-20-140 PACKINGS (82) on the grease ducts (81).
NOTE: Replace the packings (82) after each removal of the trunnion pins (95).
(9) Install the grease ducts (81) in the trunnion pins (95). Install the bushings (80) in the trunnion pins (95). (10) Apply a thin layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) or Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the trunnion pins (95) and the washers (86).
NOTE: For lubricant grease specification and lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).
(11) Install the equipped trunnion pins (95) and the washers (86) or (87) or (88) or (89) or (90) or (91) or (92) or (93) or (94) one on each side. Align the holes of the trunnion pins (95) with the holes of the nose gear leg. NOTE: You must install only one washer on each side. The two washer can have different dimensions.
(12) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the threaded and unthreaded parts of the bolts (96). (13) Install the bolts (96), washers (83) and nuts (84). TORQUE the nuts (84) to between 5.2 and 4.4 m.daN (38.35 and 32.45 lbf.ft )
and safety them with AIPC 32-21-11-40-060 COTTER PINS (85) or AIPC 32-21-11-20-060 COTTER PINS (85). NOTE: Put the heads of the bolts (96) to the front of the aircraft.
C. Removal of the Tool
(1) Remove the HOIST 500 KG (1100 LB).
(2) Remove the nut (62), the washer (61), the bolt (65), the ring (64) and the hinge pin (60).
(3) Remove the nut (46), the bolt (20), the washers (47) and (21), the bush (48) and the ring (22).
(4) Remove the pin (32).
(5) Remove the 98D32203500000 TOOL-R I NLG.
Subtask 32-21-11-420-071-B (1) Remove the HOIST 500 KG (1100 LB).
(2) Remove the nut (62), the washer (61), the bolt (65), the ring (64) and the hinge pin (60).
(3) Remove the nut (46), the bolt (20), the washers (47) and (21), the bush (48) and the ring (22).
(4) Remove the pin (32).
(5) Remove the 98D32203500000 TOOL-R I NLG.
D. Installation of the Rotating Rod
(1) Install the trunnion shafts (73).
(3) Install the bushes (72) and (75).
(4) Install the bolts (74), the washers (76) and the nuts (70). TORQUE the nuts (70) to between 0.33 and 0.27 m.daN (29.20 and 23.89 lbf.in ) and safety them with the new AIPC 32-22-01-05-320 COTTER PINS (71) or AIPC 32-22-81-05-150 COTTER PINS (71).
Subtask 32-21-11-420-074-A ** ON A/C NOT FOR ALL (1) Install the trunnion shafts (73).
NOTE: Push the nose gear leg forward to install the trunnion shafts (73).
(2) Put a V-BLOCK below the nose landing gear shock absorber to keep the nose landing gear leg at an angle. (3) Install the bushes (72) and (75).
(4) Install the bolts (74), the washers (76) and the nuts (70). TORQUE the nuts (70) to between 0.33 and 0.27 m.daN (29.20 and 23.89 lbf.in )
and safety them with the new AIPC 32-22-01-05-320 COTTER PINS (71) or AIPC 32-22-81-05-150 COTTER PINS (71). E. Connection of the Drag Strut
(1) Align the bores of the nose gear leg with the bores of the drag strut (66).
(2) Install the hinge pin (60) with the J47554 GUIDE CONE.
(3) Install the ring (64), bolt (65), washer (61) and nut (62).
(4) TORQUE the nut (62) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ).
Subtask 32-21-11-420-069-C ** ON A/C NOT FOR ALL (1) Align the bores of the nose gear leg with the bores of the drag strut (66).
(2) Install the hinge pin (60) with the J47554 GUIDE CONE.
(3) Install the ring (64), bolt (65), washer (61) and nut (62).
(4) TORQUE the nut (62) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
.WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(5) Safety the nut (62) with the new AIPC 32-21-11-42-050 COTTER PIN (63) or AIPC 32-21-11-82-050 COTTER PIN (63) or AIPC 32-21-11-62-050 COTTER PIN (63).F. Connection of the Lockstay and the Downlock Release Actuator
(2) Install the pin (32) with the J47557 GUIDE CONE. Engage in this sequence, the spacer (33), the lockstay (43), the washer (44) and the spherical end of the actuating cylinder (23).
(a) Put the rigging hole of the pin (32) vertically.
(3) Remove the J47557 GUIDE CONE.
(4) Install the ring (22). Align the rigging holes.
(5) Apply a thin layer of Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the bolt (20) and the nut (46).
(6) Install the bush (48), bolt (20), washers (21) and (47) with the nut (46).
(7) TORQUE the nut (46) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ).
(8) Safety the nut with a new AIPC 32-21-11-41-010 COTTER PIN (45) or AIPC 32-21-11-61-010 COTTER PIN (45) or AIPC 32-21-11-81-010 COTTER PIN (45).
(9) Remove the nut (28) and washer (29).
(10) Make sure that the washer (30) is in position.
(11) Install the end of the downlock release actuator (24), washer (29) and nut (28).
(12) TORQUE the nut (28) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft ).
(13) Safety the nut with a new AIPC 32-21-11-40-010 COTTER PIN (27) or AIPC 32-21-11-60-010 COTTER PIN (27) or AIPC 32-21-11-80-010 COTTER PIN (27).
(14) Remove the blanking plugs and connect the hydraulic lines (25) and (26).
(15) TORQUE the hydraulic lines (25) and (26) to between 2.14 and 1.52 m.daN (15.78 and 11.21 lbf.ft ).
(16) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
Subtask 32-21-11-420-072-C ** ON A/C NOT FOR ALL WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(1) Install the D23080000 PIN-GROUND LOCK,NLG or the MZ23080000 PIN-LOCKING as an alternative. (2) Install the pin (32) with the J47557 GUIDE CONE. Engage in this sequence, the spacer (33), the lockstay (43), the washer (44) and the spherical end of the actuating cylinder (23).
(a) Put the rigging hole of the pin (32) vertically.
(3) Remove the J47557 GUIDE CONE.
(4) Install the ring (22). Align the rigging holes.
(5) Apply a thin layer of Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the bolt (20) and the nut (46).
(6) Install the bush (48), bolt (20), washers (21) and (47) with the nut (46).
(7) TORQUE the nut (46) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
.(8) Safety the nut with a new AIPC 32-21-11-41-010 COTTER PIN (45) or AIPC 32-21-11-61-010 COTTER PIN (45) or AIPC 32-21-11-81-010 COTTER PIN (45).
(9) Remove the nut (28) and washer (29).
(10) Make sure that the washer (30) is in position.
(11) Install the end of the downlock release actuator (24), washer (29) and nut (28).
(12) TORQUE the nut (28) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft )
.(13) Safety the nut with a new AIPC 32-21-11-40-010 COTTER PIN (27) or AIPC 32-21-11-60-010 COTTER PIN (27) or AIPC 32-21-11-80-010 COTTER PIN (27).
(14) Remove the blanking plugs and connect the hydraulic lines (25) and (26).
(15) TORQUE the hydraulic lines (25) and (26) to between 2.14 and 1.52 m.daN (15.78 and 11.21 lbf.ft )
. (16) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
G. Connection of the Lock Spring
(1) Remove the nuts (36) and (41) and washers (40) and (37).
(2) Make sure that the pin (34) and is in the correct position.
(3) Put the lock springs (38) and (39) in position with the coil at the bottom part.
(4) Install the washers (37) and (40) and nuts (36) and (41).
(5) TORQUE the nuts (36) and (41) to between 0.95 and 0.8 m.daN (84.07 and 70.80 lbf.in ). While you torque one nut, hold the other one with a second wrench.
(7) Remove the M21929 TENSIONING FIXTURE.
Subtask 32-21-11-420-070-C ** ON A/C NOT FOR ALL (1) Remove the nuts (36) and (41) and washers (40) and (37).
(2) Make sure that the pin (34) and is in the correct position.
(3) Put the lock springs (38) and (39) in position with the coil at the bottom part.
(4) Install the washers (37) and (40) and nuts (36) and (41).
(5) TORQUE the nuts (36) and (41) to between 0.95 and 0.8 m.daN (84.07 and 70.80 lbf.in )
. While you torque one nut, hold the other one with a second wrench. WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(6) Safety them with the new AIPC 32-21-11-42-010 COTTER PINS (35) or AIPC 32-21-11-62-010 COTTER PINS (35) or AIPC 32-21-11-82-010 COTTER PINS (35) and the AIPC 32-21-11-42-010 COTTER PINS (42) or AIPC 32-21-11-62-010 COTTER PINS (42) or AIPC 32-21-11-82-010 COTTER PINS (42). (7) Remove the M21929 TENSIONING FIXTURE.
H. End of the Installation
(1) Connection of the electrical and hydraulic lines:
(a) Remove the blanking plugs and install the hydraulic lines (6) and (7).
(b) TORQUE the hydraulic lines (6) and (7) to between 2.64 and 2.35 m.daN (19.47 and 17.33 lbf.ft ).
(c) Remove the blanking caps and connect the electrical connectors (1) and (2).
(d) Put the bundles and install the clamp (3).
(e) Install the washers (4) and the nuts (5).
(f) Tighten the nuts (5).
(2) Install nose-wheel steering servo-control 6GC (Ref. AMM TASK 32-51-51-400-001).
(3) Install the towing fitting (Ref. AMM TASK 32-21-41-400-001).
(4) Install the swivel selector valve (Ref. AMM TASK 32-51-15-400-001).
(5) Install the NLG aft door-assembly (Ref. AMM TASK 32-22-13-410-001).
(6) Install the link and fitting assemblies of the NLG leg door (Ref. AMM TASK 32-22-15-400-802).
(7) Install the NLG leg door-assembly (Ref. AMM TASK 32-22-15-400-001).
(8) Install nose wheel-steering electrical deactivation-box 5GC (Ref. AMM TASK 32-51-12-400-001).
(9) Install the axle sleeve (Ref. AMM TASK 32-41-12-400-002).
(10) Install NLG wheels 2659GM, 2660GM (Ref. AMM TASK 32-41-12-400-001).
(11) Install the runway turnoff light (Ref. AMM TASK 33-43-11-400-001).
(12) Install take-off light 7LR (Ref. AMM TASK 33-46-11-400-001).
(13) Install taxi light 8LR (Ref. AMM TASK 33-46-12-400-001).
Subtask 32-21-11-420-074-B ** ON A/C NOT FOR ALL (1) Connection of the electrical and hydraulic lines:
(a) Remove the blanking plugs and install the hydraulic lines (6) and (7).
(b) TORQUE the hydraulic lines (6) and (7) to between 2.64 and 2.35 m.daN (19.47 and 17.33 lbf.ft )
. (c) Remove the blanking caps and connect the electrical connectors (1) and (2).
(d) Put the bundles and install the clamp (3).
(e) Install the washers (4) and the nuts (5).
(f) Tighten the nuts (5).
(2) Install nose-wheel steering servo-control 6GC (Ref. AMM TASK 32-51-51-400-001).
(3) Install the towing fitting (Ref. AMM TASK 32-21-41-400-001).
(4) Install the swivel selector valve (Ref. AMM TASK 32-51-15-400-001).
(5) Install the NLG aft door-assembly (Ref. AMM TASK 32-22-13-410-001).
(6) Install the link and fitting assemblies of the NLG leg door (Ref. AMM TASK 32-22-15-400-802).
(7) Install the NLG leg door-assembly (Ref. AMM TASK 32-22-15-400-001).
(8) Install nose wheel-steering electrical deactivation-box 5GC (Ref. AMM TASK 32-51-12-400-001).
(9) Install the axle sleeve (Ref. AMM TASK 32-41-12-400-002).
(10) Install NLG wheels 2659GM, 2660GM (Ref. AMM TASK 32-41-12-400-001).
(11) Install the runway turnoff light (Ref. AMM TASK 33-43-11-400-001).
(12) Install take-off light 7LR (Ref. AMM TASK 33-46-11-400-001).
(13) Install taxi light 8LR (Ref. AMM TASK 33-46-12-400-001).
I. Connection of the Drag Strut
(1) Align the bores of the nose gear leg with the bores of the drag strut (66).
(2) Install the hinge pin (60) with the J47554 GUIDE CONE.
(3) Install the ring (64), the bolt (65), the washer (61) and the nut (62).
(4) TORQUE the nut (62) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ).
Subtask 32-21-11-420-069-D ** ON A/C NOT FOR ALL (1) Align the bores of the nose gear leg with the bores of the drag strut (66).
(2) Install the hinge pin (60) with the J47554 GUIDE CONE.
(3) Install the ring (64), the bolt (65), the washer (61) and the nut (62).
(4) TORQUE the nut (62) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
. WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(5) Safety the nut (62) with the new AIPC 32-21-11-42-050 COTTER PIN (63) or AIPC 32-21-11-22-050 COTTER PIN (63).J. Connection of the Lockstay and the Downlock Release Actuator
(2) Install the pin (32) with the J47557 GUIDE CONE. Engage in this sequence, the spacer (33), the lockstay (43), the washer (44) and the spherical end of the actuating cylinder (23).
(a) Put the rigging hole of the pin (32) vertically.
(3) Remove the J47557 GUIDE CONE.
(4) Install the ring (22). Align the rigging holes.
(5) Apply a thin layer of Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the bolt (20) and the nut (46).
(6) Install the bush (48), bolt (20), washers (21) and (47) with the nut (46).
(7) TORQUE the nut (46) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ).
(8) Safety the nut with a new AIPC 32-21-11-41-010 COTTER PIN (45) or AIPC 32-21-11-21-010 COTTER PIN (45).
(9) Remove the nut (28) and washer (29).
(10) Make sure that the washer (30) is in position.
(11) Install the end of the downlock release actuator (24), washer (29) and nut (28).
(12) TORQUE the nut (28) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft ).
(13) Safety the nut with a new AIPC 32-21-11-40-010 COTTER PIN (27) or AIPC 32-21-11-20-010 COTTER PIN (27).
(14) Remove the blanking plugs and connect the hydraulic lines (25) and (26).
(15) TORQUE the hydraulic lines (25) and (26) to between 2.14 and 1.52 m.daN (15.78 and 11.21 lbf.ft ).
(16) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
Subtask 32-21-11-420-072-D ** ON A/C NOT FOR ALL WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(1) Install the D23080000 PIN-GROUND LOCK,NLG or the MZ23080000 PIN-LOCKING as an alternative. (2) Install the pin (32) with the J47557 GUIDE CONE. Engage in this sequence, the spacer (33), the lockstay (43), the washer (44) and the spherical end of the actuating cylinder (23).
(a) Put the rigging hole of the pin (32) vertically.
(3) Remove the J47557 GUIDE CONE.
(4) Install the ring (22). Align the rigging holes.
(5) Apply a thin layer of Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the bolt (20) and the nut (46).
(6) Install the bush (48), bolt (20), washers (21) and (47) with the nut (46).
(7) TORQUE the nut (46) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
.(8) Safety the nut with a new AIPC 32-21-11-41-010 COTTER PIN (45) or AIPC 32-21-11-21-010 COTTER PIN (45).
(9) Remove the nut (28) and washer (29).
(10) Make sure that the washer (30) is in position.
(11) Install the end of the downlock release actuator (24), washer (29) and nut (28).
(12) TORQUE the nut (28) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft )
.(13) Safety the nut with a new AIPC 32-21-11-40-010 COTTER PIN (27) or AIPC 32-21-11-20-010 COTTER PIN (27).
(14) Remove the blanking plugs and connect the hydraulic lines (25) and (26).
(15) TORQUE the hydraulic lines (25) and (26) to between 2.14 and 1.52 m.daN (15.78 and 11.21 lbf.ft )
. (16) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).
K. Connection of the Lock Spring
(1) Remove the nuts (36) and (41) and washers (40) and (37).
(2) Make sure that the pin (34) and is in the correct position.
(3) Put the lock springs (38) and (39) in position with the coil at the bottom part.
(4) Install the washers (37) and (40) and nuts (36) and (41).
(5) TORQUE the nuts (36) and (41) to between 0.95 and 0.8 m.daN (84.07 and 70.80 lbf.in ). While you torque one nut, hold the other one with a second wrench.
(7) Remove the M21929 TENSIONING FIXTURE.
Subtask 32-21-11-420-070-D ** ON A/C NOT FOR ALL (1) Remove the nuts (36) and (41) and washers (40) and (37).
(2) Make sure that the pin (34) and is in the correct position.
(3) Put the lock springs (38) and (39) in position with the coil at the bottom part.
(4) Install the washers (37) and (40) and nuts (36) and (41).
(5) TORQUE the nuts (36) and (41) to between 0.95 and 0.8 m.daN (84.07 and 70.80 lbf.in )
. While you torque one nut, hold the other one with a second wrench. WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(6) Safety them with the new AIPC 32-21-11-42-010 COTTER PINS (35) or AIPC 32-21-11-22-010 COTTER PINS (35) and the AIPC 32-21-11-42-010 COTTER PINS (42) or AIPC 32-21-11-22-010 COTTER PINS (42). (7) Remove the M21929 TENSIONING FIXTURE.
L. End of the Installation
(1) Connection of the electrical and hydraulic lines:
(a) Remove the blanking plugs and install the hydraulic lines (6) and (7).
(b) TORQUE the hydraulic lines (6) and (7) to between 2.64 and 2.35 m.daN (19.47 and 17.33 lbf.ft ).
(c) Remove the blanking caps and connect the electrical connectors (1) and (2).
(d) Put the bundles and install the clamp (3).
(e) Install the washers (4) and the nuts (5).
(f) Tighten the nuts (5).
(2) Install the hydraulic label kit (Ref. AMM TASK 32-51-51-400-802).
(3) Install the servicing plate kit (Ref. AMM TASK 32-51-42-400-802).
(4) Install the non-TPIS kit (Ref. AMM TASK 32-49-51-400-802).
(5) Install the towing fitting (Ref. AMM TASK 32-21-41-400-001).
(6) Install the swivel selector valve (Ref. AMM TASK 32-51-15-400-001).
(7) Install the NLG aft door-assembly (Ref. AMM TASK 32-22-13-410-001).
(8) Install the link and fitting assemblies of the NLG leg door (Ref. AMM TASK 32-22-15-400-802).
(9) Install NLG leg door-assembly (Ref. AMM TASK 32-22-15-400-001).
(10) Install the axle sleeve (Ref. AMM TASK 32-41-12-400-002).
(11) Install NLG wheels 2659GM, 2660GM (Ref. AMM TASK 32-41-12-400-001).
(12) Install nose-wheel steering servo-control 6GC (Ref. AMM TASK 32-51-51-400-001).
(13) Install nose-wheel steering electrical deactivation-box 5GC (Ref. AMM TASK 32-51-12-400-001).
(14) Install the runway turnoff light (Ref. AMM TASK 33-43-11-400-001).
(15) Install take-off light 7LR (Ref. AMM TASK 33-46-11-400-001).
(16) Install taxi light 8LR (Ref. AMM TASK 33-46-12-400-001).
Subtask 32-21-11-914-053-D (1) Connection of the electrical and hydraulic lines:
(a) Remove the blanking plugs and install the hydraulic lines (6) and (7).
(b) TORQUE the hydraulic lines (6) and (7) to between 2.64 and 2.35 m.daN (19.47 and 17.33 lbf.ft )
. (c) Remove the blanking caps and connect the electrical connectors (1) and (2).
(d) Put the bundles and install the clamp (3).
(e) Install the washers (4) and the nuts (5).
(f) Tighten the nuts (5).
(2) Install the hydraulic label kit (Ref. AMM TASK 32-51-51-400-802).
(3) Install the servicing plate kit (Ref. AMM TASK 32-51-42-400-802).
(4) Install the non-TPIS kit (Ref. AMM TASK 32-49-51-400-802).
(5) Install the towing fitting (Ref. AMM TASK 32-21-41-400-001).
(6) Install the swivel selector valve (Ref. AMM TASK 32-51-15-400-001).
(7) Install the NLG aft door-assembly (Ref. AMM TASK 32-22-13-410-001).
(8) Install the link and fitting assemblies of the NLG leg door (Ref. AMM TASK 32-22-15-400-802).
(9) Install NLG leg door-assembly (Ref. AMM TASK 32-22-15-400-001).
(10) Install the axle sleeve (Ref. AMM TASK 32-41-12-400-002).
(11) Install NLG wheels 2659GM, 2660GM (Ref. AMM TASK 32-41-12-400-001).
(12) Install nose-wheel steering servo-control 6GC (Ref. AMM TASK 32-51-51-400-001).
(13) Install nose-wheel steering electrical deactivation-box 5GC (Ref. AMM TASK 32-51-12-400-001).
(14) Install the runway turnoff light (Ref. AMM TASK 33-43-11-400-001).
(15) Install take-off light 7LR (Ref. AMM TASK 33-46-11-400-001).
(16) Install taxi light 8LR (Ref. AMM TASK 33-46-12-400-001).
M. Sealant Application
(1) Apply Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) or Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) or Polysulfide Sealant-General Purpose Interfay Landing Gear (Material No.06AAC5) to:
Subtask 32-21-11-863-050-A (1) Apply Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) or Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) or Polysulfide Sealant-General Purpose Interfay Landing Gear (Material No.06AAC5) to:
- The head of the bolt (20) and the nuts (28), (36), (41) and (46)
- Zones E.
N. Pressurization
(1) Pressurize the Yellow and Green hydraulic systems (Ref. AMM TASK 29-23-00-863-001) or (Ref. AMM TASK 29-10-00-863-001) and (Ref. AMM TASK 29-23-00-863-002) or (Ref. AMM TASK 29-10-00-863-002).
Subtask 32-21-11-865-061-A (1) Pressurize the Yellow and Green hydraulic systems (Ref. AMM TASK 29-23-00-863-001) or (Ref. AMM TASK 29-10-00-863-001) and (Ref. AMM TASK 29-23-00-863-002) or (Ref. AMM TASK 29-10-00-863-002).
O. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 32-21-11-941-061-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | L/G/LGCIU/SYS1/NORM | 1GA | C09 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | LGCIU/BAT SPLY/SYS2 | 59GA | R33 |
| 121VU | LGCIU/BAT SPLY/SYS1 | 58GA | R32 |
| ** ON A/C ALL | |||
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY | 4GG | M36 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS2/CTL | 3GG | M35 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/CTL | 1GG | M34 |
| 121VU | HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY | 2GG | M33 |
| 121VU | HYDRAULIC/LGCIU/SYS2 | 2GA | Q35 |
| 121VU | HYDRAULIC/LGCIU/SYS1/GRND SPLY | 52GA | Q34 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | LGCIU/BAT SPLY/SYS2 | 59GA | R32 |
| 121VU | LGCIU/BAT SPLY/SYS1 | 58GA | R31 |
P. Preparation for the Test
(1) Do the NLG shock-absorber oil-replenishment and nitrogen filling (Ref. AMM TASK 12-12-32-611-005).
(2) Lubricate the NLG (Ref. AMM TASK 12-22-32-640-002).
(3) Remove the container.
(4) Remove the access platform(s).
Subtask 32-21-11-410-053-A Subtask 32-21-11-720-053-B (1) Do the NLG shock-absorber oil-replenishment and nitrogen filling (Ref. AMM TASK 12-12-32-611-005).
(2) Lubricate the NLG (Ref. AMM TASK 12-22-32-640-002).
(3) Remove the container.
(4) Remove the access platform(s).
R. Test(s)
(1) Do one of the two steps that follow:
(a) Do the functional test of the normal extension and retraction of the landing gear (Ref. AMM TASK 32-31-00-720-002).
(b) Do the functional test of the normal extension and retraction of the nose landing gear (Ref. AMM TASK 32-31-00-720-003).
(2) Do the functional check of the free-fall extension (Ref. AMM TASK 32-33-00-720-001).
(3) Lower the aircraft on its wheels (Ref. AMM TASK 07-11-00-586-002).
(4) Do the functional test of the Nose Wheel Steering (N/WS) (Ref. AMM TASK 32-51-00-720-003).
(a) If necessary, do the adjustment of the N/WS feedback-sensors (Ref. AMM TASK 32-51-00-820-001) or (Ref. AMM TASK 32-51-00-820-002) or (Ref. AMM TASK 32-51-00-820-003).
(5) Make sure that:
(a) The screws (121), (122) and (124) are correctly tightened.
(c) A continuous bead of sealant is correctly applied and is in good condition (not cracked, missing, degraded or unsatisfactory):
(6) If you find defects at step (4), (Ref. AMM TASK 32-51-19-400-001).
5. Close-up(1) Do one of the two steps that follow:
(a) Do the functional test of the normal extension and retraction of the landing gear (Ref. AMM TASK 32-31-00-720-002).
(b) Do the functional test of the normal extension and retraction of the nose landing gear (Ref. AMM TASK 32-31-00-720-003).
(2) Do the functional check of the free-fall extension (Ref. AMM TASK 32-33-00-720-001).
(3) Lower the aircraft on its wheels (Ref. AMM TASK 07-11-00-586-002).
(4) Do the functional test of the Nose Wheel Steering (N/WS) (Ref. AMM TASK 32-51-00-720-003).
(a) If necessary, do the adjustment of the N/WS feedback-sensors (Ref. AMM TASK 32-51-00-820-001) or (Ref. AMM TASK 32-51-00-820-002) or (Ref. AMM TASK 32-51-00-820-003).
(5) Make sure that:
(a) The screws (121), (122) and (124) are correctly tightened.
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(b) The screws (121) and the knob (127) are correctly safetied with lockwire.(c) A continuous bead of sealant is correctly applied and is in good condition (not cracked, missing, degraded or unsatisfactory):
- Around the screws (124) and the connector of the N/WS feedback-sensors (123)
- Between the flange (125) and the housing of the N/WS feedback-sensors (123)
- Between the flange (125), the housing (126) and the screws (122)
- Between the knob (127) and the housing (126).
(6) If you find defects at step (4), (Ref. AMM TASK 32-51-19-400-001).
Subtask 32-21-11-860-057-A
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) After you close the LGCIU circuit breakers, put the aircraft back to the correct (ground) condition (Ref. AMM TASK 32-00-00-860-002).
(3) Do the check of the contents of the hydraulic reservoirs (Ref. AMM TASK 29-10-00-200-001).
(4) Remove the SAFETY BARRIERS.
(5) Remove the WARNING NOTICE(S).
(6) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) After you close the LGCIU circuit breakers, put the aircraft back to the correct (ground) condition (Ref. AMM TASK 32-00-00-860-002).
(3) Do the check of the contents of the hydraulic reservoirs (Ref. AMM TASK 29-10-00-200-001).
(4) Remove the SAFETY BARRIERS.
(5) Remove the WARNING NOTICE(S).
(6) Remove the ground support and maintenance equipment, the special and standard tools and all other items.