DOC AIRBUS | AMM A320FInstallation of the NLG Drag-Strut Assy
TASK 32-21-16-400-002-A
Installation of the NLG Drag-Strut Assy
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 32-21-16-860-051-A ** ON A/C NOT FOR ALL
Subtask 32-21-16-110-052-A
Subtask 32-21-16-860-052-A
[Rev.10 from 2021]
2026.04.01 00:42:15 UTC
Installation of the NLG Drag-Strut Assy
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| No specific | 1 | HOIST 500 KG (1100 LB) |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in )  | |
| 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 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft ) | |
| No specific | Torque wrench: range to between 3.9 and 3.3 m.daN (28.76 and 24.34 lbf.ft ) | |
| 98D32203500000 | 1 | TOOL-R I NLG |
| 98D32203502000 | 2 | SAFETY PIN - NLG DOOR |
| J47554 | 1 | GUIDE CONE |
| M21931 | 1 | HOISTING DEVICE |
| 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.06ABA1) | Polysulfide Sealant-Fuel Tank Brushable - |
| (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.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 711 | NOSE GEAR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 4 | COTTER PIN | AIPC 32-21-11-22-050 |
| 4 | COTTER PIN | AIPC 32-21-11-42-050 |
| 4 | COTTER PIN | AIPC 32-21-11-62-050 |
| 4 | COTTER PIN | AIPC 32-21-11-82-050 |
| 18 | COTTER PINS | AIPC 32-21-16-02-010 |
| 12 | PACKINGS | AIPC 32-21-16-02-060 |
| 29 | COTTER PIN | AIPC 32-21-16-03-010 |
| 35 | LOCK PLATE | AIPC 32-21-16-03-120 |
| 41 | SHIM | AIPC 32-21-16-03-170 |
| 42 | SHIM | AIPC 32-21-16-03-180 |
| 43 | SHIM | AIPC 32-21-16-03-190 |
| 44 | SHIM | AIPC 32-21-16-03-200 |
| 45 | SHIM | AIPC 32-21-16-03-210 |
| 46 | SHIM | AIPC 32-21-16-03-220 |
| 21 | WASHER | AIPC 32-21-16-03-281 |
| 22 | WASHER | AIPC 32-21-16-03-282 |
| 23 | WASHER | AIPC 32-21-16-03-284 |
| 24 | WASHER | AIPC 32-21-16-03-286 |
| 68 | COTTER PIN | AIPC 32-22-11-01-180 |
| 60 | COTTER PIN | AIPC 32-31-01-12-010 |
| 60 | COTTER PIN | AIPC 32-31-81-12-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 07-11-00-581-003-A | Lifting of the Aircraft at the Forward Jacking Point, MLG Wheels on the Ground |
| TASK 07-11-00-586-001-A | Lowering of the Aircraft at Forward Jacking Point, MLG Wheels on the Ground |
| TASK 12-22-32-640-002-A | Lubrication of Nose Landing Gear and Doors |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| 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 32-21-17-400-001-A | Installation of the NLG Lockstay Assy |
| 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 32-30-00-867-001-A | Retraction of the Landing Gears for Maintenance |
| TASK 32-30-00-867-002-A | Extension of the Landing Gears after Maintenance |
| TASK 32-31-00-720-003-A | Functional Test of the Normal Extension and Retraction of the Nose Landing Gear |
| TASK 12-22-00-00 | LUBRICATION - DESCRIPTION AND OPERATION |
Lower connection of the NLG Drag-Strut AssySubtask 32-21-16-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(2) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the aircraft is lifted (Ref. AMM TASK 07-11-00-581-003).
(4) In the cockpit, on the panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing gear control lever.
(5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system:
(7) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(8) Make sure that the doors of the nose landing gear are open (Ref. AMM TASK 32-22-00-010-001).
(9) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position in zone 123.
(10) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
Subtask 32-21-16-860-051-B ** ON A/C NOT FOR ALL (1) Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(2) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the aircraft is lifted (Ref. AMM TASK 07-11-00-581-003).
(4) In the cockpit, on the panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing gear control lever.
(5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system:
- on the panel 40VU in the cockpit,
- on the ground service panel of the Green hydraulic system, access door (197CB).
(7) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(8) Make sure that the doors of the nose landing gear are open (Ref. AMM TASK 32-22-00-010-001).
(9) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position in zone 123.
(10) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
A. Aircraft Maintenance Configuration
(1) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(2) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the aircraft is lifted (Ref. AMM TASK 07-11-00-581-003).
(4) In the cockpit, on the panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing gear control lever.
(5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow hydraulic system:
(7) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(8) Make sure that the doors of the nose landing gear are open (Ref. AMM TASK 32-22-00-010-001).
(9) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position in zone 123.
(10) Make sure that you obeyed the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
Subtask 32-21-16-865-057-A (1) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001)
(2) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the aircraft is lifted (Ref. AMM TASK 07-11-00-581-003).
(4) In the cockpit, on the panel 400VU, make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to operate the landing gear control lever.
(5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow hydraulic system:
- on the panel 40VU in the cockpit,
- on the ground service panel of the Yellow hydraulic system, access door (196BB).
(7) Make sure that the CONTAINER 5 L (1.32 USGAL) is in position below the NLG door actuating cylinder (2531GM).
(8) Make sure that the doors of the nose landing gear are open (Ref. AMM TASK 32-22-00-010-001).
(9) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position in zone 123.
(10) 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 |
| 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 |
Subtask 32-21-16-110-052-A
A. Preparation for Installation
(1) Clean the removed parts with Non Aqueous Cleaner-General - - (Material No.08BAA9) and dry them with filtered compressed air.
(2) Apply a light coat of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the threads of all the nuts, screws, bolts and pins.
(3) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the bushes (10) and the bolts (13) but not on the threads.
(4) Apply a thin layer Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the pins and the washers.
Subtask 32-21-16-420-052-B ** ON A/C NOT FOR ALL (1) Clean the removed parts with Non Aqueous Cleaner-General - - (Material No.08BAA9) and dry them with filtered compressed air.
(2) Apply a light coat of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the threads of all the nuts, screws, bolts and pins.
(3) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the bushes (10) and the bolts (13) but not on the threads.
(4) Apply a thin layer Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the pins and the washers.
NOTE: For lubricant grease specification and lubrication requirements, refer to (Ref. AMM D/O 12-22-00-00).
B. Installation of the NLG Drag-Strut Assy
(1) Install the M21931 HOISTING DEVICE on the drag strut (7).
(2) Install the drag strut as follows:
(a) Install the drag strut (forestay) (7) between the two spherical bearings with the HOIST 500 KG (1100 LB) and the attach bar of the 98D32203500000 TOOL-R I NLG.
(c) On the opposite side, measure the clearance between the spherical bearing and the drag strut (forestay) (7).
(d) Make a selection of two washers from the list that follows to get a clearance of between 0.2 mm (0.0079 in.) and 0.5 mm (0.0197 in.):
(f) Install the lubrication inserts (11) with the new AIPC 32-21-16-02-060 PACKINGS (12) and the bushes (10) in the trunnion pins (15).
1 Install new packings (12) after each removal of the trunnion pins (15).
(g) Put one of the washers (21), (22), (23) or (24) on each side of the drag strut (forestay) (7).
(h) Install the trunnion pins (15) assembled with the lubrication inserts (11) and the bushes (10).
(j) Align the rigging bores of the trunnion pins (15) and the drag strut (forestay) (7).
(k) Install the bolts (13), the washers (16) and the nuts (17).
(l) TORQUE the nuts (17) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft ) and safety with the AIPC 32-21-16-02-010 COTTER PINS (18).
(n) Remove the J47554 GUIDE CONE.
(o) Install the ring (5), align the rigging bores with the pin (1).
(p) Install the bolt (6), the washer (2) and the nut (3).
(q) TORQUE the nut (3) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ) and safety with the new AIPC 32-21-11-42-050 COTTER PIN (4) or AIPC 32-21-11-62-050 COTTER PIN (4) or AIPC 32-21-11-82-050 COTTER PIN (4).
(3) Install the lockstay assy (Ref. AMM TASK 32-21-17-400-001).
Subtask 32-21-16-420-052-C ** ON A/C NOT FOR ALL (1) Install the M21931 HOISTING DEVICE on the drag strut (7).
(2) Install the drag strut as follows:
(a) Install the drag strut (forestay) (7) between the two spherical bearings with the HOIST 500 KG (1100 LB) and the attach bar of the 98D32203500000 TOOL-R I NLG.
NOTE: It is recommended to assemble the drag strut with the identification plate (and associated boss) in the direction of the ground to see the identification plate more easily.
(b) Engage the trunnion pins (15) (but not fully) in the spherical bearings and put the drag strut (forestay) against one of the bearings. (c) On the opposite side, measure the clearance between the spherical bearing and the drag strut (forestay) (7).
(d) Make a selection of two washers from the list that follows to get a clearance of between 0.2 mm (0.0079 in.) and 0.5 mm (0.0197 in.):
- AIPC 32-21-16-03-281 WASHER (21)
- AIPC 32-21-16-03-282 WASHER (22)
- AIPC 32-21-16-03-284 WASHER (23)
- AIPC 32-21-16-03-286 WASHER (24).
NOTE: Only one washer is installed on each side. The two washers can have different dimensions.
(e) Remove the trunnion pins (15). (f) Install the lubrication inserts (11) with the new AIPC 32-21-16-02-060 PACKINGS (12) and the bushes (10) in the trunnion pins (15).
1 Install new packings (12) after each removal of the trunnion pins (15).
(g) Put one of the washers (21), (22), (23) or (24) on each side of the drag strut (forestay) (7).
(h) Install the trunnion pins (15) assembled with the lubrication inserts (11) and the bushes (10).
NOTE: The two rigging bores must be in the horizontal position.
(i) Make sure that the grease nipples of the lubrication insert (11) point up. (j) Align the rigging bores of the trunnion pins (15) and the drag strut (forestay) (7).
(k) Install the bolts (13), the washers (16) and the nuts (17).
(l) TORQUE the nuts (17) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft )
and safety with the AIPC 32-21-16-02-010 COTTER PINS (18). NOTE: The bolt (13) heads must point to the rear of the aircraft.
(m) Align the rigging bores of the nose landing gear leg and the drag strut (7) and install the pin (1) with the J47554 GUIDE CONE. (n) Remove the J47554 GUIDE CONE.
(o) Install the ring (5), align the rigging bores with the pin (1).
(p) Install the bolt (6), the washer (2) and the nut (3).
(q) TORQUE the nut (3) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
and safety with the new AIPC 32-21-11-42-050 COTTER PIN (4) or AIPC 32-21-11-62-050 COTTER PIN (4) or AIPC 32-21-11-82-050 COTTER PIN (4). (3) Install the lockstay assy (Ref. AMM TASK 32-21-17-400-001).
B. Installation of the NLG Drag-Strut Assy
(1) Install the M21931 HOISTING DEVICE on the drag strut (7).
(2) Install the drag strut as follows:
(a) Install the drag strut (forestay) (7) between the two spherical bearings with the HOIST 500 KG (1100 LB) and the attach bar of the 98D32203500000 TOOL-R I NLG.
(c) On the opposite side, measure the clearance between the spherical bearing and the drag strut (forestay) (7).
(d) Make a selection of two washers from the list that follows to get a clearance of between 0.2 mm (0.0078 in.) and 0.5 mm (0.02 in.):
1 Install new packings (12) after each removal of the trunnion pins (15).
(f) Put one of the washers (21), (22), (23) or (24) on each side of the drag strut (forestay) (7). Install the trunnion pins (15) assembled with the lubrication inserts (11) and the bushes (10).
(h) Align the rigging bores of the trunnion pins (15) and the drag strut (forestay) (7).
(i) Install the bolts (13), the washers (16) and the nuts (17). TORQUE the nuts (17) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft ) and safety with the AIPC 32-21-16-02-010 COTTER PINS (18).
(k) Remove the J47554 GUIDE CONE.
(l) Install the ring (5), align the rigging bores with the pin (1).
(m) Install the bolt (6), the washer (2) and the nut (3).
(n) TORQUE the nut (3) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ) and safety with the new AIPC 32-21-11-42-050 COTTER PIN (4) or AIPC 32-21-11-22-050 COTTER PIN (4).
(3) Install the lockstay assy (Ref. AMM TASK 32-21-17-400-001).
Subtask 32-21-16-820-055-B ** ON A/C NOT FOR ALL (1) Install the M21931 HOISTING DEVICE on the drag strut (7).
(2) Install the drag strut as follows:
(a) Install the drag strut (forestay) (7) between the two spherical bearings with the HOIST 500 KG (1100 LB) and the attach bar of the 98D32203500000 TOOL-R I NLG.
NOTE: It is recommended to assemble the drag strut with the identification plate (and associated boss) in the direction of the ground to see the identification plate more easily.
(b) Engage the trunnion pins (15) (but not fully) in the spherical bearings and put the drag strut (forestay) against one of the bearings. (c) On the opposite side, measure the clearance between the spherical bearing and the drag strut (forestay) (7).
(d) Make a selection of two washers from the list that follows to get a clearance of between 0.2 mm (0.0078 in.) and 0.5 mm (0.02 in.):
- AIPC 32-21-16-03-281 WASHER (21)
- AIPC 32-21-16-03-282 WASHER (22)
- AIPC 32-21-16-03-284 WASHER (23)
- AIPC 32-21-16-03-286 WASHER (24).
NOTE: Only one washer is installed on each side. The two washers can have different dimensions.
(e) Remove the trunnion pins (15). Install the lubrication inserts (11) with the new AIPC 32-21-16-02-060 PACKINGS (12) and the bushes (10) in the trunnion pins (15). 1 Install new packings (12) after each removal of the trunnion pins (15).
(f) Put one of the washers (21), (22), (23) or (24) on each side of the drag strut (forestay) (7). Install the trunnion pins (15) assembled with the lubrication inserts (11) and the bushes (10).
NOTE: The two rigging bores must be in the horizontal position.
(g) Make sure that the grease nipples of the lubrication insert (11) point up. (h) Align the rigging bores of the trunnion pins (15) and the drag strut (forestay) (7).
(i) Install the bolts (13), the washers (16) and the nuts (17). TORQUE the nuts (17) to between 3 and 2.5 m.daN (22.12 and 18.44 lbf.ft )
and safety with the AIPC 32-21-16-02-010 COTTER PINS (18). NOTE: The bolt (13) heads must point to the rear of the aircraft.
(j) Align the rigging bores of the nose landing gear leg and the drag strut (7) and install the pin (1) with the J47554 GUIDE CONE. (k) Remove the J47554 GUIDE CONE.
(l) Install the ring (5), align the rigging bores with the pin (1).
(m) Install the bolt (6), the washer (2) and the nut (3).
(n) TORQUE the nut (3) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
and safety with the new AIPC 32-21-11-42-050 COTTER PIN (4) or AIPC 32-21-11-22-050 COTTER PIN (4). (3) Install the lockstay assy (Ref. AMM TASK 32-21-17-400-001).
C. Adjustment of the Attachment Roller Positions
(1) Make sure that the 98D32203502000 SAFETY PIN - NLG DOOR and the 460005835 SLEEVE - GROUND LOCK are in position.
(2) Make sure that the fork end (39) is in the correct position and that the screw (36) is lightly tightened.
(4) On the left side, remove the cotter pins (60) and (68), nuts (61) and (67) and washers (62) and (66).
(5) Remove the bolts (71) and (64) and the rod (63).
(6) Remove the 98D32203502000 SAFETY PIN - NLG DOOR from the left door (69). Close the left door (69) manually and put it against the front stop (70).
(7) Measure clearance J3 and record it.
(8) Release the left door (69) and install the 98D32203502000 SAFETY PIN - NLG DOOR.
(9) Measure clearance J4 and record it.
(10) Measure clearance J1 and record it.
(11) Measure clearance J2 and record it.
(12) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(a) Record the location of the support (47) on the forestay.
(13) Remove the cotter pin (29), nut (30), washer (31), pin (38), washer (37), roller (33) and washers (32).
(14) If necessary:
(16) Make a selection between AIPC 32-21-16-03-170 SHIM (41), AIPC 32-21-16-03-180 SHIM (42), AIPC 32-21-16-03-190 SHIM (43), AIPC 32-21-16-03-200 SHIM (44), AIPC 32-21-16-03-210 SHIM (45), AIPC 32-21-16-03-220 SHIM (46) to adjust clearance K and get the minimum clearances J3 = 20 mm (0.79 in.) and J4 = 74 mm (2.91 in.).
(17) Apply Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the shims that you selected and install them on the support (47).
(18) Make sure that the stud (48) is installed.
(19) Install the serrated plate (40) on the fork end (39).
(20) Install the fork end (39) and the serrated plate (40) on the shim (41).
(21) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the thread and smooth parts of the shank of the screw (36).
(22) Install the washer (34), the new AIPC 32-21-16-03-120 LOCK PLATE (35) and the screw (36).
(23) Adjust clearances J1 and J2.
(a) Move the support (47) on the drag strut assembly to get the correct the adjustment.
(24) TORQUE the screw (36) to between 3.9 and 3.3 m.daN (28.76 and 24.34 lbf.ft ).
(25) Install the pin (38), washers (37) and (32) and roller (33).
(26) Install the washer (31) and the nut (30).
(27) TORQUE the nut (30) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ).
(28) Retract the landing gear (Ref. AMM TASK 32-30-00-867-001).
(29) Measure clearances J1, J2, J3 and J4 and make sure that they are in the limits.
(30) If the clearances are not in the limits, do the adjustment again.
(31) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(32) Safety the screw (36) with the tabs of the lock plate (35) and with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(33) Safety the nut (30) with the new AIPC 32-21-16-03-010 COTTER PIN (29).
(34) Install the rod (63), bolt (71), washer (62) and nut (61).
(35) Make sure that the bush (72) is installed.
(36) TORQUE the nut (61) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in ) and safety it with the new AIPC 32-31-01-12-010 COTTER PIN (60).
(37) Install the rod (63), bolt (64), washer (66) and nut (67).
(38) Make sure that the bush (65) is installed.
(39) TORQUE the nut (67) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in ) and safety it with the new AIPC 32-22-11-01-180 COTTER PIN (68).
(40) Apply the sealant.
(a) Apply a layer of Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) in zones E.
Subtask 32-21-16-820-055-C ** ON A/C NOT FOR ALL (1) Make sure that the 98D32203502000 SAFETY PIN - NLG DOOR and the 460005835 SLEEVE - GROUND LOCK are in position.
(2) Make sure that the fork end (39) is in the correct position and that the screw (36) is lightly tightened.
NOTE: Dimension K measured during the AMM removal task will help you adjust dimension K of the new forestay assembly.
(3) Retract the landing gear (Ref. AMM TASK 32-30-00-867-001). (4) On the left side, remove the cotter pins (60) and (68), nuts (61) and (67) and washers (62) and (66).
(5) Remove the bolts (71) and (64) and the rod (63).
(6) Remove the 98D32203502000 SAFETY PIN - NLG DOOR from the left door (69). Close the left door (69) manually and put it against the front stop (70).
(7) Measure clearance J3 and record it.
(8) Release the left door (69) and install the 98D32203502000 SAFETY PIN - NLG DOOR.
(9) Measure clearance J4 and record it.
(10) Measure clearance J1 and record it.
(11) Measure clearance J2 and record it.
(12) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(a) Record the location of the support (47) on the forestay.
(13) Remove the cotter pin (29), nut (30), washer (31), pin (38), washer (37), roller (33) and washers (32).
(14) If necessary:
- Cut and discard the lockwire from the screw (36).
- Release the tabs of the lock plate (35).
(16) Make a selection between AIPC 32-21-16-03-170 SHIM (41), AIPC 32-21-16-03-180 SHIM (42), AIPC 32-21-16-03-190 SHIM (43), AIPC 32-21-16-03-200 SHIM (44), AIPC 32-21-16-03-210 SHIM (45), AIPC 32-21-16-03-220 SHIM (46) to adjust clearance K and get the minimum clearances J3 = 20 mm (0.79 in.) and J4 = 74 mm (2.91 in.).
(17) Apply Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the shims that you selected and install them on the support (47).
(18) Make sure that the stud (48) is installed.
(19) Install the serrated plate (40) on the fork end (39).
(20) Install the fork end (39) and the serrated plate (40) on the shim (41).
(21) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the thread and smooth parts of the shank of the screw (36).
(22) Install the washer (34), the new AIPC 32-21-16-03-120 LOCK PLATE (35) and the screw (36).
(23) Adjust clearances J1 and J2.
(a) Move the support (47) on the drag strut assembly to get the correct the adjustment.
(24) TORQUE the screw (36) to between 3.9 and 3.3 m.daN (28.76 and 24.34 lbf.ft )
. (25) Install the pin (38), washers (37) and (32) and roller (33).
(26) Install the washer (31) and the nut (30).
(27) TORQUE the nut (30) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
. (28) Retract the landing gear (Ref. AMM TASK 32-30-00-867-001).
(29) Measure clearances J1, J2, J3 and J4 and make sure that they are in the limits.
(30) If the clearances are not in the limits, do the adjustment again.
(31) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(32) Safety the screw (36) with the tabs of the lock plate (35) and with
(33) Safety the nut (30) with the new AIPC 32-21-16-03-010 COTTER PIN (29).
(34) Install the rod (63), bolt (71), washer (62) and nut (61).
(35) Make sure that the bush (72) is installed.
(36) TORQUE the nut (61) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in )
and safety it with the new AIPC 32-31-01-12-010 COTTER PIN (60). (37) Install the rod (63), bolt (64), washer (66) and nut (67).
(38) Make sure that the bush (65) is installed.
(39) TORQUE the nut (67) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in )
and safety it with the new AIPC 32-22-11-01-180 COTTER PIN (68). (40) Apply the sealant.
(a) Apply a layer of Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) in zones E.
C. Adjustment of the Attachment Roller Positions
(1) Make sure that the 98D32203502000 SAFETY PIN - NLG DOOR and the 460005835 SLEEVE - GROUND LOCK are in position.
(2) Make sure that the fork end (39) is in the correct position and that the screw (36) is lightly tightened.
(4) On the left side, remove the cotter pins (60) and (68), nuts (61) and (67) and washers (62) and (66).
(5) Remove the bolts (71) and (64) and the rod (63).
(6) Remove the 98D32203502000 SAFETY PIN - NLG DOOR from the left door (69). Close the left door (69) manually and put it against the front stop (70).
(7) Measure clearance J3 and record it.
(8) Release the left door (69) and install the 98D32203502000 SAFETY PIN - NLG DOOR.
(9) Measure clearance J4 and record it.
(10) Measure clearance J1 and record it.
(11) Measure clearance J2 and record it.
(12) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(a) Record the location of the support (47) on the forestay.
(13) Remove the cotter pin (29), nut (30), washer (31), pin (38), washer (37), roller (33) and washers (32).
(14) If necessary:
(16) Make a selection between AIPC 32-21-16-03-170 SHIM (41), AIPC 32-21-16-03-180 SHIM (42), AIPC 32-21-16-03-190 SHIM (43), AIPC 32-21-16-03-200 SHIM (44), AIPC 32-21-16-03-210 SHIM (45), AIPC 32-21-16-03-220 SHIM (46) to adjust clearance K and get the minimum clearances J3 = 20 mm (0.79 in.) and J4 = 74 mm (2.91 in.).
(17) Apply Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the shims that you selected and install them on the support (47).
(18) Make sure that the stud (48) is installed.
(19) Install the serrated plate (40) on the fork end (39).
(20) Install the fork end (39) and the serrated plate (40) on the shim (41).
(21) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the thread and smooth parts of the shank of the screw (36).
(22) Install the washer (34), the new AIPC 32-21-16-03-120 LOCK PLATE (35) and the screw (36).
(23) Adjust clearances J1 and J2.
(a) Move the support (47) on the drag strut assembly to get the correct adjustment.
(24) TORQUE the screw (36) to between 3.9 and 3.3 m.daN (28.76 and 24.34 lbf.ft ).
(25) Install the pin (38), washers (37) and (32) and roller (33).
(26) Install the washer (31) and the nut (30).
(27) TORQUE the nut (30) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft ).
(28) Retract the landing gear (Ref. AMM TASK 32-30-00-867-001).
(29) Measure clearances J1, J2, J3 and J4 and make sure that they are in the limits.
(30) If the clearances are not in the limits, do the adjustment again.
(31) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(32) Safety the screw (36) with the tabs of the lock plate (35) and with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(33) Safety the nut (30) with the new AIPC 32-21-16-03-010 COTTER PIN (29).
(34) Install the rod (63), bolt (71), washer (62) and nut (61).
(35) Make sure that the bush (72) is installed.
(36) Apply a thin layer of Polysulfide Sealant-Fuel Tank Brushable - (Material No.06ABA1) to the threads and the head of the bolt.
(37) TORQUE the nut (61) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in ) and safety it with the new AIPC 32-31-01-12-010 COTTER PIN (60) or the AIPC 32-31-81-12-010 COTTER PIN (60).
(38) Install the rod (63), bolt (64), washer (66) and nut (67).
(39) Make sure that the bush (65) is installed.
(40) TORQUE the nut (67) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in ) and safety it with the new AIPC 32-22-11-01-180 COTTER PIN (68).
(41) Apply the sealant.
(a) Apply a layer of Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) in zones E.
Subtask 32-21-16-865-058-A (1) Make sure that the 98D32203502000 SAFETY PIN - NLG DOOR and the 460005835 SLEEVE - GROUND LOCK are in position.
(2) Make sure that the fork end (39) is in the correct position and that the screw (36) is lightly tightened.
NOTE: Dimension K measured during the AMM removal task will help you adjust dimension K of the new forestay assembly with the AIPC 32-21-16-03-170 SHIM (41), AIPC 32-21-16-03-180 SHIM (42), AIPC 32-21-16-03-190 SHIM (43), AIPC 32-21-16-03-200 SHIM (44), AIPC 32-21-16-03-210 SHIM (45) and AIPC 32-21-16-03-220 SHIM (46).
(3) Retract the landing gear (Ref. AMM TASK 32-30-00-867-001). (4) On the left side, remove the cotter pins (60) and (68), nuts (61) and (67) and washers (62) and (66).
(5) Remove the bolts (71) and (64) and the rod (63).
(6) Remove the 98D32203502000 SAFETY PIN - NLG DOOR from the left door (69). Close the left door (69) manually and put it against the front stop (70).
(7) Measure clearance J3 and record it.
(8) Release the left door (69) and install the 98D32203502000 SAFETY PIN - NLG DOOR.
(9) Measure clearance J4 and record it.
(10) Measure clearance J1 and record it.
(11) Measure clearance J2 and record it.
(12) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(a) Record the location of the support (47) on the forestay.
(13) Remove the cotter pin (29), nut (30), washer (31), pin (38), washer (37), roller (33) and washers (32).
(14) If necessary:
- Cut and discard the lockwire from the screw (36).
- Release the tabs of the lock plate (35).
(16) Make a selection between AIPC 32-21-16-03-170 SHIM (41), AIPC 32-21-16-03-180 SHIM (42), AIPC 32-21-16-03-190 SHIM (43), AIPC 32-21-16-03-200 SHIM (44), AIPC 32-21-16-03-210 SHIM (45), AIPC 32-21-16-03-220 SHIM (46) to adjust clearance K and get the minimum clearances J3 = 20 mm (0.79 in.) and J4 = 74 mm (2.91 in.).
(17) Apply Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the shims that you selected and install them on the support (47).
(18) Make sure that the stud (48) is installed.
(19) Install the serrated plate (40) on the fork end (39).
(20) Install the fork end (39) and the serrated plate (40) on the shim (41).
(21) Apply a thin layer of Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) to the thread and smooth parts of the shank of the screw (36).
(22) Install the washer (34), the new AIPC 32-21-16-03-120 LOCK PLATE (35) and the screw (36).
(23) Adjust clearances J1 and J2.
(a) Move the support (47) on the drag strut assembly to get the correct adjustment.
(24) TORQUE the screw (36) to between 3.9 and 3.3 m.daN (28.76 and 24.34 lbf.ft )
. (25) Install the pin (38), washers (37) and (32) and roller (33).
(26) Install the washer (31) and the nut (30).
(27) TORQUE the nut (30) to between 2 and 1.7 m.daN (14.75 and 12.54 lbf.ft )
. (28) Retract the landing gear (Ref. AMM TASK 32-30-00-867-001).
(29) Measure clearances J1, J2, J3 and J4 and make sure that they are in the limits.
(30) If the clearances are not in the limits, do the adjustment again.
(31) Extend the landing gear (Ref. AMM TASK 32-30-00-867-002).
(32) Safety the screw (36) with the tabs of the lock plate (35) and with
(33) Safety the nut (30) with the new AIPC 32-21-16-03-010 COTTER PIN (29).
(34) Install the rod (63), bolt (71), washer (62) and nut (61).
(35) Make sure that the bush (72) is installed.
(36) Apply a thin layer of Polysulfide Sealant-Fuel Tank Brushable - (Material No.06ABA1) to the threads and the head of the bolt.
(37) TORQUE the nut (61) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in )
and safety it with the new AIPC 32-31-01-12-010 COTTER PIN (60) or the AIPC 32-31-81-12-010 COTTER PIN (60). (38) Install the rod (63), bolt (64), washer (66) and nut (67).
(39) Make sure that the bush (65) is installed.
(40) TORQUE the nut (67) to between 0.61 and 0.6 m.daN (53.98 and 53.10 lbf.in )
and safety it with the new AIPC 32-22-11-01-180 COTTER PIN (68). (41) Apply the sealant.
(a) Apply a layer of Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) in zones E.
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 32-21-16-869-058-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | L/G/LGCIU/SYS1/NORM | 1GA | C09 |
| 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 |
E. After you close the LGCIU circuit breakers, put the aircraft back to the correct (ground) condition (Ref. AMM TASK 32-00-00-860-002).
Subtask 32-21-16-941-058-A F. Preparation for the Test
(1) Lubricate the nose landing gear (Ref. AMM TASK 12-22-32-640-002).
(2) Remove the safety barriers.
(3) Close the doors of the nose landing gear (Ref. AMM TASK 32-22-00-410-001).
Subtask 32-21-16-720-052-A (1) Lubricate the nose landing gear (Ref. AMM TASK 12-22-32-640-002).
(2) Remove the safety barriers.
(3) Close the doors of the nose landing gear (Ref. AMM TASK 32-22-00-410-001).
G. Functional Test
(1) Do an operational test of the extension and retraction of the landing gear (Ref. AMM TASK 32-31-00-720-003).
5. Close-up(1) Do an operational test of the extension and retraction of the landing gear (Ref. AMM TASK 32-31-00-720-003).
Subtask 32-21-16-860-052-A
A. Put the aircraft back to its initial configuration.
(1) Lower the aircraft with the jacks (Ref. AMM TASK 07-11-00-586-001).
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
(4) Make sure that the work area is clean and clear of tools and other items.
(1) Lower the aircraft with the jacks (Ref. AMM TASK 07-11-00-586-001).
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
(4) Make sure that the work area is clean and clear of tools and other items.