Removal of the NLG Extension Restrictor Valve

TASK 32-31-56-000-001-A
Removal of the NLG Extension Restrictor Valve

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

ZONE: 124
FIN: 2691GM

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	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	CONTAINER 5 L (1.32 USGAL)
No specific	AR	PLUG - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
124	NOSE GEAR WELL

C. Referenced Information

REFERENCE	DESIGNATION
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 32-22-00-010-001-A	Nose Gear Doors - Ground Doors Opening
NLG Extension Restrictor Valve

3. Job Set-up
Subtask 32-31-56-860-050-A

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) Depressurize the reservoir of the Green hydraulic system
(Ref. AMM TASK 29-14-00-614-001)

Subtask 32-31-56-941-050-A

B. Safety Precautions
(1) In the cockpit, on the panel 400VU put WARNING NOTICE(S) in position to tell persons not to operate the landing gear control lever.
(2) Put WARNING NOTICE(S) 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).

(3) Put the SAFETY BARRIER(S) in position.
(4) Put the CONTAINER 5 L (1.32 USGAL) in position below the restrictor valve (2691GM) to collect the hydraulic fluid leakage.

Subtask 32-31-56-010-050-A

C. Get Access
(1) Open the doors of the nose landing gear (Ref. AMM TASK 32-22-00-010-001).
(2) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position in zone 123.

4. Procedure
Subtask 32-31-56-020-051-A

A. Removal of the NLG Extension Restrictor Valve
(1) Disconnect the union (1). Install a PLUG - BLANKING on the disconnected end.
(2) Disconnect the union (3). Install a blanking plug on the disconnected end.
(3) Remove the valve (2).

[Rev.10 from 2021] 2026.04.02 06:21:43 UTC