Disconnection of one end of the MLG Lock Springs from a MLG Side-Stay

TASK 32-11-19-000-003-A
Disconnection of one end of the MLG Lock Springs from a MLG Side-Stay

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
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 32-11-19-081-001-A	Removal of the MLG Spring-Expander Tool
TASK 32-11-19-481-001-A	Installation of the MLG Spring-Expander Tool
MLG Locksprings and Spring Expander

3. Job Set-up
Subtask 32-11-19-941-059-A

A. Safety Precautions
(1) Put the SAFETY BARRIER(S) in position.
(2) On panel 400VU:

Make sure that the landing-gear control-lever 6GA is in the DOWN position
Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear.

(3) Put the ACCESS PLATFORM 2M (6 FT) in position adjacent to the applicable Main Landing Gear (MLG).

Subtask 32-11-19-860-064-A

B. Aircraft Maintenance Configuration
(1) Make sure that the Yellow and Green hydraulic systems have been depressurized (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002).
(2) Make sure that the hydraulic reservoirs are depressurized (Ref. AMM TASK 29-14-00-614-001).

Subtask 32-11-19-869-062-A

C. Flight Configuration Precautions
(1) If the electrical power is not necessary for other maintenance tasks, de-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002). Then, it is not necessary to operate the LGCIU circuit breakers.
(2) If the electrical power is necessary, do the precautions for flight configuration (Ref. AMM TASK 32-00-00-860-001) before you open the LGCIU circuit breakers.

Subtask 32-11-19-865-056-A

D. Open, safety and tag this(these) circuit breaker(s):

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/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 32-11-19-480-050-A

E. Installation of the Spring Expander
(1) Install the 460005832 SPRING EXPANDER-MLG SIDE STAY (Ref. AMM TASK 32-11-19-481-001).

4. Procedure
Subtask 32-11-19-020-054-A

A. Disconnection of the MLG Lock Springs
(1) Remove the cotter pin (13), the nut (12) and the washer (11). Discard the nut (12) and the cotter pin (13).
(2) Adjust the 460005832 SPRING EXPANDER-MLG SIDE STAY by use of the driving nut (7), until the pin (2) is loose.
(3) Remove these items together:

the pin (2)
the washer (10)
the spacer (3)
the washer (4).

(4) Release the tension of the lock springs (6) and (8), by use of the driving nut (7).
(5) Remove the 460005832 SPRING EXPANDER-MLG SIDE STAY (Ref. AMM TASK 32-11-19-081-001).
(6) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 12:30:08 UTC