B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 32-22-00-010-001 Nose Gear Doors - Ground Doors Opening 32-31-23-991-001 Fig. 401
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3. Job Set-up
__________ Subtask 32-31-23-860-050
A. Aircraft Maintenance Configuration
(1)
Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001)
(2)
Depressurize the reservoir of the Green hydraulic system. (Ref. TASK 29-14-00-614-001)
Subtask 32-31-23-010-050
B. Get Access
(1) Open the doors of the nose landing gear (Ref. TASK 32-22-00-010-001).
(2) Put the access platform in position in zone 123. Subtask 32-31-23-941-050
C. Safety Precautions
(1)
In the cockpit, on the panel 400VU put warning notice(s) in position to tell persons not to operate the landing gear control lever.
(2)
Put the warning notice(s) in position to tell persons not pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Green hydraulic system access
door (197CB).
(3)
Put the safety barriers in position.
(4)
Put a container in position below the NLG downlock release actuator (2845GM).
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4. Procedure
_________
(Ref. Fig. 401/TASK 32-31-23-991-001) Subtask 32-31-23-020-052
A. Removal of the NLG Downlock Release Actuator WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE
_______
LANDING GEAR.
(1)
Disconnect the hydraulic lines (2) and (3) and put blanking plugs on the disconnected line ends.
(2)
Remove and discard the cotter pin (13).
(3)
Remove the nut (12) and the washer (11).
(4)
Disconnect the actuator (1) from the shaft (10).
(5)
Remove and discard the cotter pin (4).
(6)
Remove the nut (5) and the washer (6).
(7)
Disconnect the actuator (1) from the shaft (8) and remove the actuator.
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NLG Downlock Release Actuator
Figure 401/TASK 32-31-23-991-001
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TASK 32-31-23-400-001 Installation of the NLG Downlock Release Actuator (2845GM) WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
WARNING : LET THE BRAKES AND THE WHEELS BECOME COOL BEFORE YOU GO NEAR THE
_______ LANDING GEAR. DO NOT APPLY A LIQUID OR GAS FIRE EXTINGUISHER DIRECTLY ON A HOT WHEEL OR BRAKE UNIT. THIS COULD CAUSE AN EXPLOSION.
CAUTION : DO NOT LET THE MLG DOOR TOUCH THE BOTTOM WING SURFACE. THIS WILL
_______ PREVENT DAMAGE.
WARNING : PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR
_______ THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
WARNING : MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY
_______ OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
No specific warning notice(s)
No specific access platform 2.06 m (6 ft. 9 in.)
No specific container 5 l (1.3208 USgal)
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft) J47587 1 GUIDE CONE
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