(6)
 Make sure that the access platform is in position at engine.

 (7)
 Make sure that the left fan-cowl door 437AL is open. Subtask 29-11-36-941-051

 B.
 Safety Precautions

 (1)
 On the center pedestal, on the ENG panel 115VU:

 -make sure that the warning notice(s) is (are) in position to tell persons not to start the engine.

 (2)
 Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.

 (3)
 Make sure that the warning notice(s) is (are) in position to tell persons not to pressurize the Green hydraulic system:

 -in the cockpit, on the HYD section of the overhead panel 40VU.

 (4)
 On the overhead maintenance panel 50VU:

 -make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.

 (5)
 Make sure that the warning notice(s) is (are) in position to tell persons not to energize the FADEC 1(2).

 (6)
 Make sure that a container is below the hydraulic tube connection to the switch (25) to collect the remaining fluid.

 4. Procedure
_________
 (Ref. Fig. 401/TASK 29-11-36-991-001) Subtask 29-11-36-420-050
 A. Installation of the Green Engine 1 Pump Delivery Check Valve (1050GM)
 (1)
 Apply HYDRAULIC FLUIDS (Material No. 02-003) to the new O-ring (3).

 (2)
 Install the O-ring (3) on the check valve (1). (Ref. TASK 20-29-00-911-002)

 (3)
 Remove the blanking plug from the panel (4).

 (4) Install the check valve (1) on the panel (4). 
R R  (5) TORQUE the check valve (1) to between 12.9 and 14.2 m.daN (95.13 and 104.71 lbf.ft).
 (6) Remove the blanking plug from the disconnected hose (2).
 (7) Connect the hose (2) to the check valve (1). 
R R  (8) TORQUE the coupling nut to between 9.7 and 10.7 m.daN (71.53 and 78.90 lbf.ft).
 Subtask 29-11-36-710-050
 B. Test
 (1) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
 (2) On the ECAM control panel, push the HYD key (on the lower ECAM DU, the HYD page comes into view).
 (3) On the HYD page, make sure that the Green pressure is 3000 +200 -200 psi (206.8427 +13.7895 -13.7895 bar).
 (4) Do an operational test of the Green hydraulic system (Ref. TASK 29-11-00-710-001)
 (5) During the dry motoring, make sure that there are no leaks from the check valve.
 (6) Make sure that the level of the hydraulic fluid in the Green reservoir is correct. If necessary, fill the reservoir (Ref. TASK 12-12-29-611-001).
 5. Close-up________
 Subtask 29-11-36-942-050
 A. Aircraft Maintenance Configuration
 (1) Remove the warning notice(s).
 (2) Remove the container.

 (3) Make sure that the work area is clean and clear of tool(s) and other items.
 (4) Do the EIS stop procedure (Ref. TASK 31-60-00-860-002). 
R  (5) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
 Subtask 29-11-36-410-050
 B. Close Access 
R  (1) Remove the access platform(s). 
R R (2) Close the left fan-cowl door 437AL (Ref. TASK 71-13-00-410-040). 

 CHECK VALVE - ENGINE 1 PUMP CASE DRAIN (1041GM) - REMOVAL/INSTALLATION
______________________________________________________________________ TASK 29-11-37-000-001 Removal of the Green Engine 1 Pump Case Drain Check Valve (1041GM) WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
 WARNING : DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER

_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS STAY HOT FOR SOME TIME AND CAN CAUSE INJURY.
 CAUTION : DO NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED HYDRAULIC
_______ FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.
 CAUTION : BE CAREFUL WHEN YOU REMOVE THE CHECK VALVE AS THE HYDRAULIC FLUID
_______
 WILL FLOW OUT.

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R  No specific blanking plugs No specific container No specific warning notice(s) No specific access platform 1.50 m (4 ft. 11 in.)
　
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