(6)
Connect the pressure hose of the hydraulic power cart to the filter end of the case-drain upper-line with an adaptor.
(7)
Connect the return hose of the hydraulic power cart to the manifold end of the case-drain upper-line with an adaptor.
(8)
Put blanking plugs on the disconnected line ends.
(9)
Operate the hydraulic power cart for 20 s at 20 bar (290.0754 psi).
(10) Stop the hydraulic power cart. Subtask 12-36-29-960-050
B. Replace the subsequent components:
(1)
The case-drain filter element (Ref. TASK 29-11-43-610-040).
(2)
The HP filter element (Ref. TASK 29-11-45-610-001).
5. Close-up
________
Subtask 12-36-29-860-052
A. Put the system back to the serviceable condition.
(1)
Disconnect the pressure and return hoses of the hydraulic power cart and the adaptors from the case-drain upper line.
(2)
Disconnect and remove the union from the pressure line and the case-drain lower line.
(3)
Remove the hydraulic ground power cart.
(4)
Remove the blanking plugs.
(5)
Connect the case-drain upper line to the LP manifold 1003GM and the case drain filter 1084GM.
(6)
Connect the case-drain lower line to the case drain filter 1084GM.
(7)
Connect the pressure line and the case-drain lower line to the engine driven pump 1030GK.
Subtask 12-36-29-790-050
B. Leak Test of the Connections which were Disconnected
(1)
Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001).
(2)
Make sure that there is no hydraulic fluid leakage.
(3) Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001). Subtask 12-36-29-942-089
C. Put the aircraft back to its initial configuration.
(1)
Remove the containers.
(2)
Remove the safety barriers.
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s).
Subtask 12-36-29-410-071
D. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the engine 1 fan-cowl doors (Ref. TASK 71-13-00-410-040).
(3)
Close the left MLG door (Ref. TASK 32-12-00-410-001).
(4)
Close the access door 197CB.
(5)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
TASK 12-36-29-170-002
Flushing of the Yellow Hydraulic System of the Engine Driven Pump (EDP) 3030GD
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 : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
R WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______ R - FLUSH IT AWAY WITH CLEAN WATER R - GET MEDICAL AID.
1. Reason for the Job
__________________
To flush the Yellow hydraulic system after a failure in the engine driven pump 3030GD.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific adaptor
No specific blanking plugs
No specific hydraulic power cart
No specific safety barriers
No specific union
No specific warning notices
No specific access platform 2.00 m (6 ft. 7 in.)
No specific containers 5 l (1.3208 USgal)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-863-002 Pressurize the Yellow Hydraulic System 29-10-00-864-002 Depressurize the Yellow Hydraulic System 29-13-43-610-040 Servicing of the Engine Pump Case-Drain Filter
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