Removal of the 1M and 2M Harnesses from the MLG Axle

TASK 32-11-43-000-003-A
Removal of the 1M and 2M Harnesses from the MLG Axle

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.

ZONE: 730
ZONE: 740

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	CAP - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
730	LEFT MAIN LANDING GEAR & DOORS
740	RIGHT MAIN LANDING GEAR & DOORS

C. 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 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 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-41-11-000-006-A	Removal of the MLG Wheel
TASK 32-42-57-000-001-A	Removal of the Tachometer
TASK 32-48-51-000-005-A	Removal of the Fan Assy
MLG Axle Harnesses 1M and 2M - Location and Detail
MLG Axle Harnesses 1M and 2M - Cableform Identification

3. Job Set-up
Subtask 32-11-43-941-055-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 ground safety locks are on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) 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.

Subtask 32-11-43-869-059-A

B. 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 circuit breakers.

Subtask 32-11-43-865-060-A

C. 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 32-11-43-010-056-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the applicable MLG door (Ref. AMM TASK 32-12-00-010-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position adjacent to the applicable MLG, below zone 730 or 740.
(3) Remove the applicable wheels (Ref. AMM TASK 32-41-11-000-006).
(4) Remove the applicable tachometers (Ref. AMM TASK 32-42-57-000-001).

Subtask 32-11-43-010-056-B ** ON A/C NOT FOR ALL

4. Procedure
Subtask 32-11-43-020-062-C

A. Removal of the 1M and 2M Harnesses from the MLG Axle

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.

CAUTION: MAKE SURE THAT ALL ELECTRICAL CONNECTORS ARE IDENTIFIED WITH THEIR FIN NO. TO CORRECTLY CONNECT EACH PLUG TO ITS RELATED RECEPTACLE. INCORRECT CONNECTION OF THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO THE AIRCRAFT ELECTRICAL SYSTEM.

(1) For the 1M harness:
(a) Disconnect the axle harness electrical connector (3) from the 1M harness connector (2) installed on the bracket (1).
(2) For the 2M harness:
(a) Remove and discard the lockwire from the bolts (4).
(b) Remove the bolts (4), the washers (5) and remove the cable clamp (6).
(c) Disconnect the axle harness electrical connector (7) from the 2M harness connector (8) installed on the bracket (9).
(3) Carefully remove the six cableforms of the 1M and 2M harnesses from the axle through the cable access holes. Do not make kinks in the harnesses.
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

[Rev.10 from 2021] 2026.04.01 00:40:58 UTC