B. Get Access
(1)
Open the left MLG door (Ref. TASK 32-12-00-010-001). Subtask 32-31-36-869-050
C. Disconnection of the PTU Isolation coupling
(1)
Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).
(2)
Disconnect the PTU isolation coupling (Ref. TASK 29-23-00-860-001).
(3)
Obey the flight configuration precautions (Ref. TASK 32-00-00-860-001).
(4)
Put the access platform in position.
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(5) Put the container below the check valves to collect the hydraulic fluid leakage.
Subtask 32-31-36-865-050
D. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
R 49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
Subtask 32-31-36-941-050
E. Safety Precautions
(1) Put the warning notices in the position to tell persons not to pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Green hydraulic system.
4. Procedure
_________ R (Ref. Fig. 401/TASK 32-31-36-991-001) Subtask 32-31-36-020-051
A. Removal of the Check Valve 2519GM
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Disconnect the connectors (8) and (9) and remove the union (11) with the check valve (13).
(3)
Remove the check valve (13) from the union (11).
(4)
Remove and discard the packing (12).
(5)
Remove the check valve 2519GM.
(6)
Put blanking plugs on the disconnected line ends.
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R MLG Check Valves 2519GM, 2525GM and 2529GM Figure 401/TASK 32-31-36-991-001
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Subtask 32-31-36-020-052
B. Removal of the Check Valve 2525GM
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Disconnect the connector (3).
(3)
Remove the check valve (4) from the manifold (6).
(4)
Remove and discard the packing (5).
(5)
Remove the check valve 2525GM.
(6) Put blanking plugs on the disconnected line ends. Subtask 32-31-36-020-053
C. Removal of the Check Valve 2529GM
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Disconnect the connectors (1) and remove the union (2).
(3)
Remove the check valve (7) from the manifold (6).
(4)
Remove and discard the packing (5).
(5)
Remove the check valve 2529GM.
(6)
Put blanking plugs on the disconnected line ends.
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TASK 32-31-36-400-001 Installation of the MLG Check Valves 2519GM, 2525GM and 2529GM WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
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.
_______
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notices No specific Torque Wrench : range 0.20 to 3.60 m.daN
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