(2)
Make sure that the ground safety locks are installed on the landing gear (Ref. 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
-put a warning notice in position to tell persons not to operate the landing gear.
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Alternate-Brake Manifold Safety-Valve Reactivation Plug
Figure 301/TASK 32-43-32-991-002
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(4) Put a warning notice on the ground service connection to tell persons
not to pressurize the Yellow hydraulic system. Subtask 32-43-32-860-053
B. Aircraft Maintenance Configuration
(1)
Make sure that the Yellow hydraulic system has been depressurized (Ref. TASK 29-00-00-864-001).
(2)
Operate the brake pedals until the pressure in the brake accumulator of the Yellow hydraulic system is at zero.
Subtask 32-43-32-010-051
C. Get Access
(1)
Put the access platform below the applicable false rear spar, at zone 571(671).
(2)
Put a container below the applicable alternate-brake manifold.
4. Procedure
_________ Subtask 32-43-32-440-050
A. Reactivation of the Alternate-Brake Manifold Safety-Valve
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
WARNING : DO NOT LET OIL STAY ON YOUR SKIN FOR A LONG TIME AS IT CAN
_______
CAUSE INJURY.
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)
Remove and discard the lockwire from the reactivation plug (1).
(2)
Slowly loosen the reactivation plug (1) to release the hydraulic pressure.
NOTE : Do not loosen the reactivation plug (1) more than 2.5 turns.
____
(3) Make sure that the seal (2) is correctly installed on the reactivation plug (1).
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(4)
Tighten the reactivation plug (1) and torque it to between 3.85 and
4.0 m.daN (28.39 and 29.49 lbf.ft).
(5)
Use a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026) to remove unwanted hydraulic fluid from the alternate-brake manifold and the adjacent area.
(6)
Safety the reactivation plug (1) with MISCELLANEOUS (Material No. 19-010).
Subtask 32-43-32-870-051
B. Bleed the Brake System
(1) Bleed the alternate brake system (Ref. TASK 32-43-00-870-002). Subtask 32-43-32-710-051
C. Test
(1)
Do an operational test of the alternate brake system (Ref. TASK 32-43-00-710-001).
(2)
Make sure that there are no hydraulic leaks at the reactivation plug (1).
5. Close-up
________ Subtask 32-43-32-942-051
A. Removal of Equipment
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the safety barriers.
(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.
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_________________________________________________________________
TASK 32-43-32-000-001
Removal of the Alternate-Brake Manifold 2853GM(2852GM)
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.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
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