Installation of the MLG Slave Link Assembly

TASK 32-11-12-400-802-A
Installation of the MLG Slave Link Assembly

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.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 731
ZONE: 741

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	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.0 and 0.8 m.daN (88.50 and 70.80 lbf.in )
No specific	Torque wrench: range to between 2.0 and 1.6 m.daN (14.75 and 11.80 lbf.ft )
No specific	Torque wrench: range to between 2.7 and 2.1 m.daN (19.91 and 15.49 lbf.ft )
T14500	1	WRENCH-CROWFOOT

B. Consumable Materials

REFERENCE	DESIGNATION
(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.06LDG6)	Non Hardening Jointing Putty-High Temp. Area - Hydraulic
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
731	L.H MAIN GEAR
741	R.H MAIN GEAR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
7	COTTER PIN	AIPC 32-11-11-53-095
8	COTTER PIN	AIPC 32-11-11-53-095
10	COTTER PIN	AIPC 32-11-11-53-125
11	COTTER PIN	AIPC 32-11-11-53-125
14	COTTER PIN	AIPC 32-11-11-53-125
15	COTTER PIN	AIPC 32-11-11-53-125
8	COTTER PIN	AIPC 32-11-85-53-095
11	COTTER PIN	AIPC 32-11-85-53-125
15	COTTER PIN	AIPC 32-11-85-53-125

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 07-12-00-582-002-A	Jacking of the Main Landing Gear
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 29-00-00-864-001-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 29-23-00-860-002-A	Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
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 32-11-12-000-001-A	Removal of the MLG Hydraulic Dressings
TASK 32-11-12-400-001-A	Installation of the MLG Hydraulic Dressings
TASK 32-11-43-000-001-A	Removal of the 1M and 2M Harnesses from the MLG Leg
TASK 32-11-43-000-003-A	Removal of the 1M and 2M Harnesses from the MLG Axle
TASK 32-11-43-400-002-A	Installation of the 1M and 2M Harnesses on the MLG Leg
TASK 32-11-43-400-003-A	Installation of the 1M and 2M Harnesses on the MLG Axle
TASK 32-31-73-000-001-A	Removal of the MLG Proximity-Sensors
TASK 32-31-73-400-001-A	Installation of the MLG Proximity-Sensors
TASK 32-42-27-000-001-A	Removal of the Brake
TASK 32-42-27-400-001-A	Installation of the Brake
MLG Slave Link Assembly - Location and Details ** ON A/C NOT FOR ALL
MLG Slave Link Assembly - Location and Details ** ON A/C NOT FOR ALL
MLG Slave Link Assembly - Location and Details ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 32-11-12-941-056-A

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Make sure that the safety devices are installed on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) On panel 400VU:
(a) Make sure that landing-gear control lever 6GA is in the DOWN position.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the landing gear.
(4) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the brakes.
(5) Make sure that the WARNING NOTICE(S) is in position to tell persons not to pressurize the hydraulic systems.

Subtask 32-11-12-860-057-A

B. Aircraft Maintenance Configuration
(1) Make sure that the applicable MLG is lifted (Ref. AMM TASK 07-12-00-582-002) or the aircraft is lifted on jacks (Ref. AMM TASK 07-11-00-581-001).
(2) Make sure that the electrical harnesses are released from the applicable slave link assembly (Ref. AMM TASK 32-11-43-000-001).
(3) Make sure that the applicable proximity sensor 21GA(20GA) is removed (Ref. AMM TASK 32-31-73-000-001).
(4) If necessary, make sure that the 1M electrical harness is released from the MLG axle for access (Ref. AMM TASK 32-11-43-000-003).
(5) Make sure that the hydraulic dressings are released from the applicable slave link assembly (Ref. AMM TASK 32-11-12-000-001).
(6) Make sure that the applicable brake is removed (Ref. AMM TASK 32-42-27-000-001).
(7) Make sure that the Yellow and Green Hydraulic systems are depressurized (Ref. AMM TASK 29-00-00-864-001).
(8) Make sure that the Yellow and the Green Hydraulic reservoirs are depressurized (Ref. AMM TASK 29-14-00-614-001).

Subtask 32-11-12-869-062-A

C. Flight Configuration Precautions
(1) If the electrical power is not necessary for other maintenance tasks, make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).
(2) If the electrical power is necessary, make sure that the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001) are done before the LGCIU circuit breakers are opened.

Subtask 32-11-12-865-056-A

D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

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

4. Procedure
Subtask 32-11-12-420-054-A

A. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.

Subtask 32-11-12-420-057-D ** ON A/C NOT FOR ALL

B. Installation of the MLG Slave Link Assembly

MLG Slave Link Assembly - Location and Details ** ON A/C NOT FOR ALL

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: 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) Apply Non Hardening Jointing Putty-High Temp. Area - Hydraulic (Material No.06LDG6) to the:

Mating surface of the bracket (2)
Shank of the pin (1)
Spacers (16) and (19)
Internal surfaces of the sliding piston lug and the main fitting lug
Internal surface of the upper slave-link assembly (8) that touches the pin (1)
Internal surface of the bearings of the lower slave-link assembly (12)
Washers (5), (4) and (11)
Shank of the bolts (3), (17) and (18).

(2) Install the bracket (2) on the upper slave-link assembly (8) as follows:
(a) Put the bracket (2) in position on the upper slave-link assembly (8).
(b) Install the washers (4) and the bolts (3).
(c) TORQUE the bolts (3) to between 1.0 and 0.8 m.daN (88.50 and 70.80 lbf.in )

.
(d) Safety the bolts (3) together with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(3) Put the upper slave-link assembly (8) in position on the main fitting lug.
(4) Install the pin (1), the washer (5) and the nut (6).
(5) TORQUE the nut (6) to between 2.0 and 1.6 m.daN (14.75 and 11.80 lbf.ft )

.
(6) Make sure that the upper slave-link assembly (8) is free to turn on the pin (1).
(7) Safety the nut (6) with the new AIPC 32-11-11-53-095 COTTER PIN (7).
(8) Put the lower slave-link assembly (12) in position on the sliding piston lug.
(9) Install the spacer (16), the bolt (17), the washer (15) and the nut (13).
(10) TORQUE the nut (13) to between 2.7 and 2.1 m.daN (19.91 and 15.49 lbf.ft )

.
(11) Make sure that the lower slave-link assembly (12) is free to turn on the bolt (17).
(12) Safety the nut (13) with the new AIPC 32-11-11-53-125 COTTER PIN (14).
(13) Align the upper slave-link assembly (8) with the lower slave-link assembly (12).
(14) Install the spacer (19), the bolt (18), the washer (11) and the nut (9).
(15) TORQUE the nut (9) to between 2.7 and 2.1 m.daN (19.91 and 15.49 lbf.ft )

.
(16) Safety the nut (9) with the new AIPC 32-11-11-53-125 COTTER PIN (10).
(17) Apply Polysulfide Sealant-General Purpose Interfay Landing Gear (Material No.06AAC5) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) or Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the:

Head of the pin (1)
Heads of the bolts (3), (17) and (18)
End of the pin (1), the nut (6) and the washer (5)
End of the bolt (17), the nut (13) and the washer (15)
End of the bolt (18), the nut (9) and the washer (11)
Area around the joint between the bracket (2) and upper slave-link assembly (8).

Subtask 32-11-12-420-057-E ** 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.

B. Installation of the MLG Slave Link Assembly

MLG Slave Link Assembly - Location and Details ** ON A/C NOT FOR ALL

(1) Apply Non Hardening Jointing Putty-High Temp. Area - Hydraulic (Material No.06LDG6) to the:

Threads of the nut (7), mating surface of the washer (5) and the pin (1)
Mating surfaces of the bracket (2) and the upper slave-link assembly (9)
Internal surface of the spacers (17) and (20)
Internal surfaces of the sliding piston lug and the main fitting lug
Mating surface of the washer (4)
Bore of the lower slave-link assembly (13), where the bolt (19) will touch
Shank and threads of the bolts (3), (18) and (19).

(2) Put the upper slave-link assembly (9) in position on the main fitting lug.
(3) Install the pin (1), the washer (6) and the nut (7). If necessary, install the washer(s) (5).
(4) TORQUE the nut (7) to between 2.0 and 1.6 m.daN (14.75 and 11.80 lbf.ft )

.
(5) Safety the nut (7) with the new AIPC 32-11-11-53-095 COTTER PIN (8) or the new AIPC 32-11-85-53-095 COTTER PIN (8).
(6) Put the lower slave-link assembly (13) in position on the sliding piston lug.
(7) Install the spacer (17), the bolt (18), the washer (16) and the nut (14).

NOTE: The head of the bolt (18) must point to the:

Inboard side for the left MLG
Outboard side for the right MLG.

(8) Use the T14500 WRENCH-CROWFOOT and TORQUE the nut (14) to between 2.7 and 2.1 m.daN (19.91 and 15.49 lbf.ft )

.
(9) Safety the nut (14) with the new AIPC 32-11-11-53-125 COTTER PIN (15) or the new AIPC 32-11-85-53-125 COTTER PIN (15).
(10) Align the upper slave-link assembly (9) with the lower slave-link assembly (13).
(11) Install the spacer (20), the bolt (19), the washer (12) and the nut (10).

NOTE: The head of the bolt (19) must point to the:

Inboard side for the left MLG
Outboard side for the right MLG.

(12) Use the T14500 WRENCH-CROWFOOT and TORQUE the nut (10) to between 2.7 and 2.1 m.daN (19.91 and 15.49 lbf.ft )

.
(13) Safety the nut (10) with the new AIPC 32-11-11-53-125 COTTER PIN (11) or the new AIPC 32-11-85-53-125 COTTER PIN (11).
(14) Install the bracket (2) on the upper slave-link assembly (9) as follows:
(a) Put the bracket (2) in position on the upper slave-link assembly (9).
(b) Install the washers (4) and the bolts (3).
(c) TORQUE the bolts (3) to between 1.0 and 0.8 m.daN (88.50 and 70.80 lbf.in )

.
(d) Safety the bolts (3) together with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(15) Apply Polysulfide Sealant-General Purpose Interfay Landing Gear (Material No.06AAC5) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) or Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the:

Head of the pin (1).
Heads of the bolts (19), (18) and (3).
Nuts (7), (10) and (14)
Washers (12), (16) and (4).
Area around the joint between the bracket (2) and the upper slave-link assembly (9).

5. Close-up
Subtask 32-11-12-410-051-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable brake (Ref. AMM TASK 32-42-27-400-001).
(3) Install the electrical harnesses on the applicable slave link assembly (Ref. AMM TASK 32-11-43-400-002).
(4) Install the applicable proximity sensor 21GA(20GA) (Ref. AMM TASK 32-31-73-400-001).
(5) If the parts of the 1M electrical harness are removed, install them (Ref. AMM TASK 32-11-43-400-003).
(6) Install the hydraulic dressings on the applicable slave link assembly (Ref. AMM TASK 32-11-12-400-001).

Subtask 32-11-12-586-050-A

B. Lowering
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Lower the applicable MLG off the jack (Ref. AMM TASK 07-12-00-582-002) or lower the aircraft off the jacks (Ref. AMM TASK 07-11-00-586-002).

Subtask 32-11-12-865-057-A

C. Remove the safety clip(s) and the tag(s) and close 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 32-11-12-869-063-A

D. Aircraft Ground Configuration
(1) Connect the isolation coupling of the PTU (Ref. AMM TASK 29-23-00-860-002).
(2) If you did the flight configuration precautions, put the aircraft back to the ground configuration (Ref. AMM TASK 32-00-00-860-002).

Subtask 32-11-12-942-052-A

E. Removal of Equipment
(1) Remove the safety barrier(s).
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:40:07 UTC