Installation of the Nose-Wheel-Steering Anti-Shimmy Valve

TASK 32-51-43-400-001-A
Installation of the Nose-Wheel-Steering Anti-Shimmy Valve

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 3 and 2 m.daN (22.12 and 14.75 lbf.ft )
No specific	Torque wrench: range to between 7.6 and 6.5 m.daN (56.05 and 47.94 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06ABF1)	Polysulfide Sealant-Fuel Tank Quick Curing -

C. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	LOCK WASHER	AIPC 32-51-43-10-010
6	SEALS	AIPC 32-51-43-10-060
5	RING	AIPC 32-51-43-10-070
7	RING	AIPC 32-51-43-10-070

D. Referenced Information

REFERENCE	DESIGNATION
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 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 32-51-00-720-003-A	Functional Test of the Nose Wheel Steering with the Handwheel
Nose-Wheel-Steering Anti-Shimmy Valve

3. Job Set-up
Subtask 32-51-43-860-051-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(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 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.

(4) In the cockpit, on the center pedestal, make sure that the free-fall extension handle of the landing gear is in the normal position.
(5) 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.
(6) Make sure that the container is in position below the cylinder.
(7) Make sure that the safety barriers are in position.

Subtask 32-51-43-860-051-B ** ON A/C NOT FOR ALL

A. Safety Precautions
(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 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.

4. Procedure
Subtask 32-51-43-560-050-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.

NOTE: Lubricate the seals with hydraulic fluid.

(2) Put the new AIPC 32-51-43-10-060 SEALS (6), AIPC 32-51-43-10-070 RING (5) and AIPC 32-51-43-10-070 RING (7) on the valve (8).

Subtask 32-51-43-420-050-A ** ON A/C NOT FOR ALL

B. Installation of the Anti-Shimmy Valve
(1) Put the valve (8) in the internal diameters of the cylinder (1).
(2) Install the new AIPC 32-51-43-10-010 LOCK WASHER (2).
(3) Install the nut (3) and TORQUE it to between 3 and 2 m.daN (22.12 and 14.75 lbf.ft )

.
(4) Bend over the lock washer (2) to lock the nut (3).
(5) Remove the blanking plugs from the line end.
(6) Connect the hydraulic coupling (4).
(7) TORQUE the hydraulic coupling (4) to between 7.6 and 6.5 m.daN (56.05 and 47.94 lbf.ft )

.
(8) Identify the tightened union nuts with a red line (Ref. AMM TASK 20-23-22-910-001).
(9) Apply Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) to the surface of the valve (8) and on the nut (3).

Subtask 32-51-43-560-050-B ** ON A/C NOT FOR ALL

C. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.

NOTE: Lubricate the seals with hydraulic fluid.

(2) Put the new AIPC 32-51-43-10-060 SEALS (6), AIPC 32-51-43-10-070 RING (5) and AIPC 32-51-43-10-070 RING (7) on the valve (8).

Subtask 32-51-43-420-050-B ** ON A/C NOT FOR ALL

D. Installation of the Anti-Shimmy Valve
(1) Put the valve (8) in the internal diameters of the cylinder (1).
(2) Install the new AIPC 32-51-43-10-010 LOCK WASHER (2).
(3) Install the nut (3) and TORQUE it to between 3 and 2 m.daN (22.12 and 14.75 lbf.ft )

Subtask 32-51-43-720-050-A

E. Functional Test
(1) Do a functional test of the nose wheel steering with the handwheel (Ref. AMM TASK 32-51-00-720-003).

5. Close-up
Subtask 32-51-43-942-050-A

A. Removal of Equipment
(1) Remove the container, the safety barriers and the warning notice.
(2) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 00:51:51 UTC