Installation of the Lockstay Actuator Hoses

TASK 32-11-22-400-001-A
Installation of the Lockstay Actuator Hoses

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

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.

WARNING: YOU MUST NOT GET HYDRAULIC FLUID ON YOUR SKIN, IN YOUR EYES OR IN YOUR MOUTH. THE HYDRAULIC FLUID IS POISONOUS AND CAN BE ABSORBED INTO YOUR BODY. IF YOU ACCIDENTALLY GET HYDRAULIC FLUID IN YOUR EYES, MOUTH OR ON YOUR SKIN, FLUSH WITH WATER AND GET MEDICAL AID.

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

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	CAP - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 12 and 10 m.N (106.19 and 88.50 lbf.in )
No specific	Torque wrench: range to between 17 and 14 m.N (12.54 and 10.32 lbf.ft )
No specific	Torque wrench: range to between 16 and 15 m.N (11.80 and 11.06 lbf.ft )
No specific	Torque wrench: range to between 17 and 15 m.N (12.54 and 11.06 lbf.ft )
No specific	Torque wrench: range to between 28 and 24 m.N (20.65 and 17.70 lbf.ft )
No specific	Torque wrench: range to between 32 and 29 m.N (23.60 and 21.39 lbf.ft )
No specific	Torque wrench: range to between 34.4 and 33.4 m.N (25.37 and 24.63 lbf.ft )
No specific	Torque wrench: range to between 45.7 and 44.7 m.N (33.70 and 32.96 lbf.ft )
No specific	Torque wrench: range to between 0.45 and 0.29 m.daN (39.82 and 25.66 lbf.in )
460005171-95	1	POST-ASSEMBLY
DRT68864	1	LOCK, STAY BRACE TOOL

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
(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.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. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
10	PACKING	AIPC 32-11-22-01-050
12	PACKING	AIPC 32-11-22-01-050
18	PACKING	AIPC 32-11-22-01-050
3	PACKINGS	AIPC 32-11-22-01-050
11	BACKUP RETAINER	AIPC 32-11-22-01-060
17	BACKUP RETAINER	AIPC 32-11-22-01-060
4	BACKUP RETAINER	AIPC 32-11-22-01-060
9	BACKUP RETAINER	AIPC 32-11-22-01-060
10	PACKING	AIPC 32-11-85-89-050
3	PACKINGS	AIPC 32-11-85-89-050
4	BACKUP RETAINER	AIPC 32-11-85-89-060
9	BACKUP RETAINER	AIPC 32-11-85-89-060

D. Referenced Information

REFERENCE	DESIGNATION
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
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 29-23-00-860-001-A	Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 32-00-00-080-001-A	Removal of the Brace Tool from the Lockstay Actuator
TASK 32-00-00-480-001-A	Installation of the Brace Tool on the Lockstay Actuator
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-31-00-720-002-A	Functional Test of the Normal Extension and Retraction of the Landing Gear
TASK 32-31-00-720-007-A	Functional Test of the MLG Lockstay Actuating Cylinder with Brace Tool Installed
Lockstay Actuator Hoses - Location and Detail ** ON A/C NOT FOR ALL
Lockstay Actuator Hoses - Location and Detail ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 32-11-22-941-051-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 the panel 400VU:

make sure that the landing-gear control-lever 6GA is in the DOWN position
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 pressurize the Green and Yellow Hydraulic Systems.
(5) Make sure that you obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002) when you do work on the hydraulic system.

Subtask 32-11-22-860-051-A

B. Aircraft Maintenance Configuration
(1) Make sure that the isolation coupling of the PTU is disconnected (Ref. AMM TASK 29-23-00-860-001).
(2) Make sure that the Yellow and Green Hydraulic Systems are de-pressurized (Ref. AMM TASK 29-10-00-864-002) and (Ref. AMM TASK 29-10-00-864-001).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the applicable side-stay, at zone 733 or 743.

4. Procedure
Subtask 32-11-22-420-050-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new packing (12) and (18) and the new backup retainers (11) and (17).

Subtask 32-11-22-420-050-B ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new packing (3) and (10) and the new backup retainers (4) and (9).

Subtask 32-11-22-420-051-A ** ON A/C NOT FOR ALL

B. Installation of the Lockstay Actuator Hoses

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.

(1) Remove the CAP - BLANKING from the disconnected line ends.

NOTE: You must install each of the hoses in the correct location. There is only one location for each hose to be installed correctly. The LH/RH hoses are not interchangeable.

(2) Use the 460005171-95 POST-ASSEMBLY and install the AIPC 32-11-22-01-060 BACKUP RETAINER (11) and the AIPC 32-11-22-01-050 PACKING (12) on the hose (10).
(3) Use the 460005171-95 POST-ASSEMBLY and install the AIPC 32-11-22-01-060 BACKUP RETAINER (17) and the AIPC 32-11-22-01-050 PACKING (18) on the hose (1).
(4) Install the hoses (1) and (10) on the lockstay actuator.
(5) Install the washers (13) and (16) and the bolts (14) and (15).
(6) TORQUE the bolts (14) and (15) to between 0.45 and 0.29 m.daN (39.82 and 25.66 lbf.in )

.
(7) Safety the bolts (14) and (15) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(8) Install the washers (2) and (9) on the hoses (1) and (10).
(9) Put the hoses (1) and (10) in the bracket assembly.
(10) Install the washers (3) and (8) and the nuts (4) and (7) on the hoses (1) and (10).
(11) TORQUE the nut (4) to between 17 and 14 m.N (12.54 and 10.32 lbf.ft )

.
(12) TORQUE the nut (7) to between 12 and 10 m.N (106.19 and 88.50 lbf.in )

.
(13) Connect the pipes (5) and (6) to the hoses (1) and (10).
(14) TORQUE the union nut of the pipe (5) to between 28 and 24 m.N (20.65 and 17.70 lbf.ft )

.
(15) TORQUE the union nut of the pipe (6) to between 16 and 15 m.N (11.80 and 11.06 lbf.ft )

.
(16) Safety the nuts (4) and (7) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(17) Apply Polysulfide Sealant-General Purpose Interfay Landing Gear (Material No.06AAC5) or Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) to the heads of the bolts (14) and (15).

Subtask 32-11-22-420-051-B ** ON A/C NOT FOR ALL

B. Installation of the Lockstay Actuator Hoses

(1) Remove the CAP - BLANKING from the disconnected line ends.

NOTE: You must install each of the hoses in the correct location. There is only one location for each hose to be installed correctly. The LH/RH hoses are not interchangeable.

(2) Use the 460005171-95 POST-ASSEMBLY and install the AIPC 32-11-22-01-060 BACKUP RETAINER (4) and the AIPC 32-11-22-01-050 PACKINGS (3) on the hose (2).
(3) Use the 460005171-95 POST-ASSEMBLY and install the AIPC 32-11-22-01-060 BACKUP RETAINER (9) and the AIPC 32-11-22-01-050 PACKING (10) on the hose (1).
(4) Install the hoses (1) and (2) on the lockstay actuator.
(5) Install the washers (5) and (8) and the bolts (6) and (7).
(6) TORQUE the bolts (6) and (7) to between 0.45 and 0.29 m.daN (39.82 and 25.66 lbf.in )

.
(7) Safety the bolts (6) and (7) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(8) Install the washers (11) and (18) on the hoses (1) and (2).
(9) Put the hoses (1) and (2) in the bracket assembly.
(10) Install the washers (12) and (17) and the nuts (13) and (16) on the hoses (1) and (2).
(11) TORQUE the nut (13) to between 17 and 14 m.N (12.54 and 10.32 lbf.ft )

.
(12) TORQUE the nut (16) to between 12 and 10 m.N (106.19 and 88.50 lbf.in )

.
(13) Connect the pipes (14) and (15) to the hoses (1) and (2).
(14) TORQUE the union nut of the pipe (14) to between 28 and 24 m.N (20.65 and 17.70 lbf.ft )

.
(15) TORQUE the union nut of the pipe (15) to between 16 and 15 m.N (11.80 and 11.06 lbf.ft )

.
(16) Safety the nuts (13) and (16) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(17) Apply Polysulfide Sealant-General Purpose Interfay Landing Gear (Material No.06AAC5) or Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) to the heads of the bolts (6) and (7).

Subtask 32-11-22-420-051-C ** ON A/C NOT FOR ALL

B. Installation of the Lockstay Actuator Hoses

(1) Remove the CAP - BLANKING from the disconnected line ends.

NOTE: You must install each of the hoses in the correct location. There is only one location for each hose to be installed correctly. The LH/RH hoses are not interchangeable.

(2) Use the 460005171-95 POST-ASSEMBLY and install the:

AIPC 32-11-22-01-060 BACKUP RETAINER (4) or the AIPC 32-11-85-89-060 BACKUP RETAINER (4) and the AIPC 32-11-22-01-050 PACKINGS (3) or the AIPC 32-11-85-89-050 PACKINGS (3) on the hose (2).

(3) Use the 460005171-95 POST-ASSEMBLY and install the:

AIPC 32-11-22-01-060 BACKUP RETAINER (9) or the AIPC 32-11-85-89-060 BACKUP RETAINER (9) and the AIPC 32-11-22-01-050 PACKING (10) or the AIPC 32-11-85-89-050 PACKING (10) on the hose (1).

(4) Install the hoses (1) and (2) on the lockstay actuator.
(5) Install the washers (5) and (8) and the bolts (6) and (7).
(6) TORQUE the bolts (6) and (7) to between 0.45 and 0.29 m.daN (39.82 and 25.66 lbf.in )

.
(12) TORQUE the nut (16) to between 34.4 and 33.4 m.N (25.37 and 24.63 lbf.ft )

.
(13) Connect the pipes (14) and (15) to the hoses (1) and (2).
(14) TORQUE the union nut of the pipe (14) to between 32 and 29 m.N (23.60 and 21.39 lbf.ft )

.
(15) TORQUE the union nut of the pipe (15) to between 17 and 15 m.N (12.54 and 11.06 lbf.ft )

Subtask 32-11-22-720-050-A

C. Functional Test of the MLG Lockstay Actuating Cylinder

NOTE: If the DRT68864 LOCK, STAY BRACE TOOL is used, the aircraft can stay on wheels for the functional test.

(1) If the DRT68864 LOCK, STAY BRACE TOOL is available:
(a) Install the DRT68864 LOCK, STAY BRACE TOOL (Ref. AMM TASK 32-00-00-480-001).
(b) Do a functional test of the MLG Lockstay Actuating Cylinder (Ref. AMM TASK 32-31-00-720-007).
(c) Remove the DRT68864 LOCK, STAY BRACE TOOL (Ref. AMM TASK 32-00-00-080-001).
(2) If the DRT68864 LOCK, STAY BRACE TOOL is not available:
(a) Do a functional test of the Normal Extension and Retraction of the L/G (Ref. AMM TASK 32-31-00-720-002).

Subtask 32-11-22-790-050-A

D. Check the Hydraulic System for Leaks
(1) Make sure that all the connections that you have moved are tightened, and that there are no hydraulic leaks.

5. Close-up
Subtask 32-11-22-942-050-A

A. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the SAFETY BARRIER(S).
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:40:47 UTC