Removal of the MLG Shock Absorber

TASK 32-11-13-000-001-A
Removal of the MLG Shock Absorber

WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:

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

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

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	ACCESS PLATFORM 3M (10 FT)
No specific	AR	CAP - BLANKING
No specific	AR	CHARGING EQUIPMENT - GAS, STANDARD
No specific	1	CONTAINER 5 L (1.32 USGAL)
No specific	AR	FORKLIFT 1000KG (2200 LB), LIFT ANGLE +10 TO -10 DEG
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	SPATULA - NON METALLIC
No specific	AR	WARNING NOTICE(S)
460006211	1	LIFTING-TACKLE
460006212	1	TROLLEY-BUILD
460007240	1	TROLLEY-BUILD

B. Work Zones and Access Panels

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

C. Referenced Information

REFERENCE	DESIGNATION
TASK 07-11-00-581-001-A	Lifting for Aircraft Maintenance Operations
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 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-00-00-481-002-A	Installation of the Safety Devices on the Landing Gear Doors
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 32-11-13-000-003-A	Removal of the MLG Shock-Absorber Gland-Seals
TASK 32-11-27-000-001-A	Removal of the MLG Torque Links
TASK 32-11-43-000-003-A	Removal of the 1M and 2M Harnesses from the MLG Axle
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 32-42-27-000-001-A	Removal of the Brake
TASK 32-42-57-000-001-A	Removal of the Tachometer
TASK 32-42-71-000-001-A	Removal of the MLG Axle Adaptor-Sleeves
TASK 32-48-51-000-005-A	Removal of the Fan Assy
MLG Two-Stage Shock Absorber ** ON A/C NOT FOR ALL
MLG Shock Absorber ** ON A/C NOT FOR ALL
MLG Shock Absorber ** ON A/C NOT FOR ALL
MLG Two-Stage Shock Absorber ** ON A/C NOT FOR ALL
MLG Two-Stage Shock Absorber ** ON A/C NOT FOR ALL
1M and 2M Electrical Harnesses - Location and Detail (Axle Connections)

3. Job Set-up
Subtask 32-11-13-941-050-A

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Install the safety devices 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.

(4) Put the WARNING NOTICE(S) in the cockpit to tell persons not to operate the brakes.
(5) Put the WARNING NOTICE(S) in position on the ground hydraulic services connections to tell persons not to operate the Green or the Yellow hydraulic systems.

Subtask 32-11-13-860-050-A

B. Aircraft Maintenance Configuration
(1) Depressurize the applicable hydraulic systems (Ref. AMM TASK 29-00-00-864-001).
(2) Depressurize the applicable hydraulic reservoirs (Ref. AMM TASK 29-14-00-614-001).

Subtask 32-11-13-582-056-A

C. Lift the Aircraft
(1) Lift the aircraft on jacks (Ref. AMM TASK 07-11-00-581-001).

Subtask 32-11-13-869-055-A

D. 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 electrical power is necessary, do the precautions for flight configuration with electrical power (Ref. AMM TASK 32-00-00-860-001) before you open the circuit breakers.

Subtask 32-11-13-865-050-A

E. 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/BRAKING AND STEERING/SYS2/SPLY	4GG	M36
121VU	HYDRAULIC/BRAKING AND STEERING/SYS2/CTL	3GG	M35
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/CTL	1GG	M34
121VU	HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY	2GG	M33
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 32-11-13-010-050-A

F. Get Access
(1) Open the applicable MLG gear door (Ref. AMM TASK 32-12-00-010-001).
(2) Install the GROUND LOCK SLEEVE on the applicable MLG door actuating cylinder (Ref. AMM TASK 32-00-00-481-002).
(3) Put the ACCESS PLATFORM 3M (10 FT) in position, adjacent to the applicable MLG.
(4) Remove the applicable MLG wheels (Ref. AMM TASK 32-41-11-000-006).
(5) Remove the applicable MLG brakes (Ref. AMM TASK 32-42-27-000-001).

Subtask 32-11-13-582-054-A

G. Lift the Aircraft
(1) Lift the aircraft on jacks (Ref. AMM TASK 07-11-00-581-001).

NOTE: To remove the shock absorber, there must be a minimum clearance of 1600 mm (62.99 in.) between the bottom of the MLG main fitting and the ground.

4. Procedure
Subtask 32-11-13-614-050-C ** ON A/C NOT FOR ALL

A. Depressurization of the MLG Shock Absorber
(1) Remove the blanking cap (44) from the top charging valve (45) and install the CHARGING EQUIPMENT - GAS, STANDARD.

WARNING: DO NOT LET COMPRESSED GAS TOUCH YOUR SKIN. THE GAS CAN GO THROUGH THE SKIN AND MAKE BUBBLES IN THE BLOOD. THIS CONDITION CAN KILL YOU.

(a) Slowly loosen the valve on the charging adapter attached to the top charging valve (45).

NOTE: This will release the gas pressure from the first stage of the shock absorber (1).

(2) Remove the charging adapter from the top charging valve (45).
(3) Install the blanking cap (44) on the top charging valve (45).
(4) Remove the blanking cap (60) from the bottom charging valve (59) and install the charging adapter.
(5) Slowly loosen the valve on the charging adapter attached to the bottom charging valve (59).

NOTE: This will release the gas pressure from the second stage of the shock absorber (1).

(6) Remove the charging adapter from the bottom charging valve (59).
(7) Install the blanking cap (60) on the bottom charging valve (59).

Subtask 32-11-13-614-050-E ** ON A/C NOT FOR ALL

A. Depressurization of the MLG Shock Absorber
(1) Remove the blanking cap (43) from the top charging valve (42) and install the CHARGING EQUIPMENT - GAS, STANDARD.

WARNING: DO NOT LET COMPRESSED GAS TOUCH YOUR SKIN. THE GAS CAN GO THROUGH THE SKIN AND MAKE BUBBLES IN THE BLOOD. THIS CONDITION CAN KILL YOU.

(2) Slowly loosen the valve on the charging adapter attached to the top charging valve (42).

NOTE: This will release the gas pressure from the first stage of the shock absorber (1).

(3) Remove the charging adapter from the top charging valve (42).
(4) Install the blanking cap (43) on the top charging valve (42).
(5) Remove the blanking cap (59) from the bottom charging valve (58) and install the charging adapter.
(6) Slowly loosen the valve on the charging adapter attached to the bottom charging valve (58).

NOTE: This will release the gas pressure from the second stage of the shock absorber (1).

(7) Remove the charging adapter from the bottom charging valve (58).
(8) Install the blanking cap (59) on the bottom charging valve (58).

Subtask 32-11-13-020-057-K ** 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.

B. Preparation for Removal of the MLG Shock Absorber Assembly

1M and 2M Electrical Harnesses - Location and Detail (Axle Connections) ** ON A/C NOT FOR ALL

(1) Remove the top charging valve assembly as follows:
(a) Remove the charging valve (45) from the inflation valve (41).
(b) Remove and discard the packer (46) from the charging valve (45).
(c) Remove the bolts (43), the spacers (42) and the inflation valve (41).
(d) Remove and discard the O-ring (40) and the backing rings (39) from the inflation valve (41).
(2) Remove the spare-seal activating-valve assembly as follows:
(a) Put the CONTAINER 5 L (1.32 USGAL) below the housing (52) to collect the hydraulic fluid.
(b) Remove and discard the cotter pins (53). Remove the washers (57) and the pin (58).
(c) Remove and discard the lockwire from the valve stem (56).
(d) Carefully remove the valve stem (56) from the housing (52).
(e) Make sure that you drain the hydraulic from the housing (52) into the CONTAINER 5 L (1.32 USGAL).
(f) Remove and discard the O-ring (54) and the backing ring (55) from the valve stem (56).

MLG Two-Stage Shock Absorber ** ON A/C NOT FOR ALL

(3) Disconnect the electrical connector (83) of the 1M system harness at the axle interface. Put a CAP - BLANKING on the disconnected end.
(4) Disconnect the electrical connector (87) of the 2M system harness at the axle interface (Ref. AMM TASK 32-11-43-000-003). Put a CAP - BLANKING on the disconnected end.
(5) Disconnect the slave link assembly as follows:
(a) Remove and discard the cotter pins (19).
(b) Remove the nuts (18), the washers (17), the sleeves (16) and the bolts (15).
(c) Move the bottom slave link (21) away from the shock absorber (1) together with:

The fitting (20)
The electrical harness (23)
The flexible hydraulic lines (22).

(d) Make sure that you do not make kinks in the electrical harness (23) or the flexible hydraulic lines (22). Safety them in this position and give them protection.
(6) Put the CONTAINER 5 L (1.32 USGAL) in position below the shock absorber (1).

Subtask 32-11-13-020-058-Y ** ON A/C NOT FOR ALL

C. Removal of the MLG Shock Absorber Assembly

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THE MLG SHOCK-ABSORBER. ITS WEIGHT CAN BE AS MUCH AS 118kg (260lb).

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

CAUTION: MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.

(1) Use a FORKLIFT 1000KG (2200 LB), LIFT ANGLE +10 TO -10 DEG to compress the shock absorber (1) fully into the MLG leg. Make sure that you lift the shock absorber (1) along the centerline of the MLG main fitting.

NOTE: Hydraulic oil will come from the charging valve hole.

(2) Hold the shock absorber (1) in this position.
(3) Disconnect the lower torque link assembly as follows:
(a) Disengage the tab washers (11) and remove the bolts (12). Remove and discard the tab washers (11).
(b) Remove the lock plate (10).
(c) Remove and discard the cotter pin (8). Remove the nut (7), the washer (6) and the bolt (5).
(d) Remove the pin (2).
(e) Move the torque link (3) away from the shock absorber (1) together with:

The fitting (9)
The electrical harness (14)
The flexible hydraulic lines (13).

(f) Make sure that you do not make kinks in the electrical harness (14) or the flexible hydraulic lines (13). Safety them in this position and give them protection.
(g) Remove the spacers (4).
(4) Remove and discard the cotter pin (35). Remove the nut (34), the washer (33), the bolt (31) and the collar (32).
(5) Remove the pin (30) and the washer (38).
(6) Release the gland housing (51) as follows:
(a) Remove the sealant from the tab washers (47) and the retaining pins (48) with a SPATULA - NON METALLIC.
(b) Release the tab washers (47).
(c) Remove the retaining pins (48).
(d) Remove and discard the tab washers (47).
(7) Make sure that the gland housing (51) does not fall out of the shock absorber (1).
(8) Carefully lower the shock absorber (1) along the centerline of the MLG main fitting and remove it from the MLG leg. Make sure that the shock absorber (1) does not fall when it comes out of the MLG leg.

NOTE: Hydraulic fluid will come from the shock absorber (1).

(9) Remove and discard the seals (36) and (37), the O-rings (50) and the backing rings (49).
(10) If necessary, remove the MLG gland-seals (Ref. AMM TASK 32-11-13-000-003).
(11) Use the 460006211 LIFTING-TACKLE to install the MLG shock absorber in the 460006212 TROLLEY-BUILD.

Subtask 32-11-13-020-057-M ** 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.

D. Preparation for Removal of the MLG Shock Absorber Assembly

1M and 2M Electrical Harnesses - Location and Detail (Axle Connections) ** ON A/C NOT FOR ALL

(1) Remove the top charging valve assembly as follows:
(a) Remove the charging valve (45) from the inflation valve (41).
(b) Remove and discard the packer (46) from the charging valve (45).
(c) Remove the bolts (43), the spacers (42) and the inflation valve (41).
(d) Remove and discard the O-ring (40) and the backing rings (39) from the inflation valve (41).
(2) Remove the spare-seal activating-valve assembly as follows:
(a) Put the CONTAINER 5 L (1.32 USGAL) below the housing (52) to collect the hydraulic fluid.
(b) Remove and discard the cotter pins (53). Remove the washers (57) and the pin (58).
(c) Remove and discard the lockwire from the valve stem (56).
(d) Carefully remove the valve stem (56) from the housing (52).
(e) Make sure that you drain the hydraulic fluid from the housing (52) into the CONTAINER 5 L (1.32 USGAL).
(f) Remove and discard the O-ring (54) and the backing ring (55) from the valve stem (56).

MLG Two-Stage Shock Absorber ** ON A/C NOT FOR ALL

The fitting (20)
The electrical harness (23)
The flexible hydraulic lines (22).

Subtask 32-11-13-020-058-W ** ON A/C NOT FOR ALL

E. Removal of the MLG Shock Absorber Assembly

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THE MLG SHOCK-ABSORBER. ITS WEIGHT CAN BE AS MUCH AS 118kg (260lb).

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

CAUTION: MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.

NOTE: Hydraulic oil will come from the charging valve hole.

(2) Hold the shock absorber (1) in this position.
(3) Disconnect the top and bottom torque links from the shock absorber (1) (Ref. AMM TASK 32-11-27-000-001).
(4) Remove and discard the cotter pin (35).
(5) Remove the nut (34), the washer (33), the bolt (31) and the collar (32).
(6) Remove the pin (30) and the washer (38).
(7) Release the gland housing (51) as follows:
(a) Remove the sealant from the tab washers (47) and the retaining pins (48) with a SPATULA - NON METALLIC.
(b) Release the tab washers (47).
(c) Remove the retaining pins (48).
(d) Remove and discard the tab washers (47).
(8) Make sure that the gland housing (51) does not fall out of the shock absorber (1).
(9) Carefully lower the shock absorber (1) along the centerline of the MLG main fitting and remove it from the MLG leg. Make sure that the shock absorber (1) does not fall when it comes out of the MLG leg.

NOTE: Hydraulic fluid will come from the shock absorber (1).

(10) Remove and discard the seals (36) and (37), the O-rings (50) and the backing rings (49).
(11) If necessary, remove the MLG gland-seals (Ref. AMM TASK 32-11-13-000-003).
(12) Use the 460006211 LIFTING-TACKLE to install the MLG shock absorber in the 460007240 TROLLEY-BUILD.

Subtask 32-11-13-020-057-N ** ON A/C NOT FOR ALL

F. Preparation for Removal of the MLG Shock Absorber Assembly

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) Remove the top charging valve assembly as follows:
(a) Remove the charging valve (42) from the inflation valve (41).
(b) Remove the bolts (44), the spacers (45) and the inflation valve (41).
(c) Remove and discard the packing (40) and the packing retainers (39) from the inflation valve (41).
(2) Remove the spare-seal activating-valve assembly as follows:
(a) Put the CONTAINER 5 L (1.32 USGAL) below the housing (54) to collect the hydraulic fluid.
(b) Remove and discard the cotter pins (55). Remove the washers (56) and the pin (57).
(c) Remove and discard the lockwire from the valve stem (53).
(d) Carefully remove the valve stem (53) from the housing (54).
(e) Make sure that you drain the hydraulic fluid from the housing (54) into the CONTAINER 5 L (1.32 USGAL).
(f) Remove and discard the packing retainer (51) and the O-ring (52) from the valve stem (53).
(3) Disconnect the electrical connector (83) of the 1M system harness at the axle interface. Put a CAP - BLANKING on the disconnected end.

1M and 2M Electrical Harnesses - Location and Detail (Axle Connections) ** ON A/C NOT FOR ALL

(4) Disconnect the electrical connector (87) of the 2M system harness at the axle interface (Ref. AMM TASK 32-11-43-000-003). Put a CAP - BLANKING on the disconnected end.

1M and 2M Electrical Harnesses - Location and Detail (Axle Connections) ** ON A/C NOT FOR ALL

(5) Disconnect the slave link assembly as follows:
(a) Remove and discard the cotter pins (19).
(b) Remove the nuts (18), the washers (17), the sleeves (16) and the bolts (15).
(c) Move the bottom slave link (21) away from the shock absorber (1) together with:

The fitting (20)
The electrical harness (23)
The flexible hydraulic lines (22).

Subtask 32-11-13-020-058-A0 ** ON A/C NOT FOR ALL

G. Removal of the MLG Shock Absorber Assembly

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THE MLG SHOCK-ABSORBER. ITS WEIGHT CAN BE AS MUCH AS 118kg (260lb).

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

CAUTION: MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.

NOTE: Hydraulic oil will come from the charging valve hole.

(2) Hold the shock absorber (1) in this position.
(3) Disconnect the lower torque link assembly as follows:
(a) Disengage the tab washers (11) and remove the bolts (12). Remove and discard the tab washers (11).
(b) Remove the wedge (10).
(c) Remove and discard the cotter pin (8). Remove the nut (7), the washer (6) and the bolt (5).
(d) Remove the pin (2).
(e) Move the torque link (3) away from the shock absorber (1) together with:

The fitting (9)
The electrical harness (14)
The flexible hydraulic lines (13).

(f) Make sure that you do not make kinks in the electrical harness (14) or the flexible hydraulic lines (13). Safety them in this position and give them protection.
(g) Remove the spacers (4).
(4) Remove and discard the cotter pin (35).
(5) Remove the nut (34), the washers (33), the bolt (31) and the collar (32).
(6) Remove the pin (30) and the washer (38).
(7) Release the gland housing (50) as follows:
(a) Remove the sealant from the tab washers (47) and the retaining pins (46) with a SPATULA - NON METALLIC.
(b) Release the tab washers (47).
(c) Remove the retaining pins (46).
(d) Remove and discard the tab washers (47).
(8) Make sure that the gland housing (50) does not fall out of the shock absorber (1).
(9) Carefully lower the shock absorber (1) along the centerline of the MLG main fitting and remove it from the MLG leg. Make sure that the shock absorber (1) does not fall when it comes out of the MLG leg.

NOTE: Hydraulic fluid will come from the shock absorber (1).

(10) Remove and discard the packing (36), the seal (37), the packings (49) and the packing retainers (48).
(11) If necessary, remove the MLG gland-seals (Ref. AMM TASK 32-11-13-000-003).
(12) Use the 460006211 LIFTING-TACKLE to install the MLG shock absorber in the 460006212 TROLLEY-BUILD.

Subtask 32-11-13-020-057-O ** ON A/C NOT FOR ALL

H. Preparation for Removal of the MLG Shock Absorber Assembly

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) Remove the top charging valve assembly as follows:
(a) Remove the charging valve (42) from the inflation valve (41).
(b) Remove the bolts (44), the spacers (45) and the inflation valve (41).
(c) Remove and discard the packings (40) and the packing retainer (39) from the inflation valve (41).
(2) Remove the spare-seal activating-valve assembly as follows:
(a) Put the CONTAINER 5 L (1.32 USGAL) below the housing (54) to collect the hydraulic fluid.
(b) Remove and discard the cotter pins (55). Remove the washers (56) and the pin (57).
(c) Remove and discard the lockwire from the valve stem (53).
(d) Carefully remove the valve stem (53) from the housing (54).
(e) Make sure that you drain the hydraulic fluid from the housing (54) into the CONTAINER 5 L (1.32 USGAL).
(f) Remove and discard the packing retainer (51) and the O-ring (52) from the valve stem (53).
(3) Disconnect the electrical connector (83) of the 1M system harness at the axle interface. Put a CAP - BLANKING on the disconnected end.

1M and 2M Electrical Harnesses - Location and Detail (Axle Connections) ** ON A/C NOT FOR ALL

(4) Disconnect the electrical connector (87) of the 2M system harness at the axle interface (Ref. AMM TASK 32-11-43-000-003). Put a CAP - BLANKING on the disconnected end.

1M and 2M Electrical Harnesses - Location and Detail (Axle Connections) ** ON A/C NOT FOR ALL

The fitting (20)
The electrical harness (23)
The flexible hydraulic lines (22).

Subtask 32-11-13-020-058-C ** ON A/C NOT FOR ALL

I. Removal of the MLG Shock Absorber Assembly

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THE MLG SHOCK-ABSORBER. ITS WEIGHT CAN BE AS MUCH AS 118kg (260lb).

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

CAUTION: MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.

NOTE: Hydraulic oil will come from the charging valve hole.

(2) Hold the shock absorber (1) in this position.
(3) Disconnect the top and bottom torque links from the shock absorber (1) (Ref. AMM TASK 32-11-27-000-001).
(4) Remove and discard the cotter pin (36).
(5) Remove the nut (35), the washer (34), the bolt (31), the washer (32) and the collar (33).
(6) Remove the pin (30) and the washer (38).
(7) Release the gland housing (50) as follows:
(a) Remove the sealant from the tab washers (47) and the retaining pins (46) with a SPATULA - NON METALLIC.
(b) Release the tab washers (47).
(c) Remove the retaining pins (46).
(d) Remove and discard the tab washers (47).
(8) Make sure that the gland housing (50) does not fall out of the shock absorber (1).
(9) Carefully lower the shock absorber (1) along the centerline of the MLG main fitting and remove it from the MLG leg. Make sure that the shock absorber (1) does not fall when it comes out of the MLG leg.

NOTE: Hydraulic fluid will come from the shock absorber (1).

(10) Remove and discard the packing (60), the seal (61), the packings (49) and the packing retainers (48).
(11) If necessary, remove the MLG gland-seals (Ref. AMM TASK 32-11-13-000-003).
(12) Use the 460006211 LIFTING-TACKLE to install the MLG shock absorber in the 460007240 TROLLEY-BUILD.

Subtask 32-11-13-020-063-A ** ON A/C NOT FOR ALL

J. Removal of the MLG Shock Absorber (Continued)
(1) If it is necessary to replace the shock absorber (1), remove these items:

The tachometers (Ref. AMM TASK 32-42-57-000-001)
The axle adaptor-sleeves (Ref. AMM TASK 32-42-71-000-001)
The 1M and 2M system harnesses from the axle (Ref. AMM TASK 32-11-43-000-003).

Subtask 32-11-13-020-063-B ** ON A/C NOT FOR ALL

J. Removal of the MLG Shock Absorber (Continued)
(1) If it is necessary to replace the shock absorber (1), remove these items:

the tachometers (Ref. AMM TASK 32-42-57-000-001)
the axle adaptor-sleeves (Ref. AMM TASK 32-42-71-000-001)
the brake fan assemblies (Ref. AMM TASK 32-48-51-000-005)
the 1M and 2M system harnesses from the axle (Ref. AMM TASK 32-11-43-000-003).

[Rev.10 from 2021] 2026.04.01 03:58:43 UTC