4. Procedure
_________
 (Ref. Fig. 401/TASK 32-31-47-991-001) Subtask 32-31-47-420-051
 A. Installation of the Check Valve 2537GM
 (1)
 Remove the blanking plugs.

 (2)
 Put the packing (6) on the check valve (5).

 (3)
 Install the check valve (5) in the manifold (7).

 (4)
 TORQUE the check valve (5) to between 6.26 and 6.83 m.daN (46.16 and

 50.36 lbf.ft).

 (5)
 Put the reducer tee (3) in position and connect the connector (4) do not thighten at this time.

 (6)
 Connect the connectors (1) and (2) to the reducer tee (3) and the check valve (5).

 (7)
 TORQUE the connector (4) to between 7.29 and 7.40 m.daN (53.76 and

 54.57 lbf.ft).

 (8)
 TORQUE the connector (1) to between 2.9 and 3.2 m.daN (21.38 and

 23.59 lbf.ft).

 (9)
 TORQUE the connector (2) to between 2.6 and 2.94 m.daN (19.17 and

 21.68 lbf.ft).
 (10) Mark all the connectors with PAINTS FOR DETAIL (INTERNAL AND EXTERN AL) (Material No. 07-010).
 Subtask 32-31-47-865-052
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GA, 2GA, 52GA, 1701GK, 1702GK.
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 Subtask 32-31-47-860-052
 C. Preparation for Test
 (1)
 Connect the PTU isolation coupling (Ref. TASK 29-23-00-860-002).

 (2)
 If the flight configuration precautions were obeyed, put the aircraft back to the serviceable condition (Ref. TASK 32-00-00-860-002).

 (3)
 Remove the container.

 (4)
 Remove the warning notice(s).

 (5)
 Remove the access platform(s).

 (6)
 Close the right MLG door (Ref. TASK 32-12-00-410-001).

 (7)
 If necessary fill the reservoir of the Green hydraulic system to the correct level (Ref. TASK 12-12-29-611-001).

 Subtask 32-31-47-720-050
 D. Do the functional test of the MLG normal extension and retraction system (Ref. TASK 32-31-00-720-002).
 (1)
 Open the right MLG door (Ref. TASK 32-12-00-010-001).

 (2)
 Make sure that there is no hydraulic fluid leakage from the check valve 2537GM.

 5. Close-up
________ Subtask 32-31-47-410-051
 A. Close Access
 (1)
 Apply corrosion protection to the check valve 2537GM, the connectors and the adjacent areas (Ref. TASK 51-75-13-916-002).

 (2)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (3)
 Close the right MLG door (Ref. TASK 32-12-00-410-001).

 (4)
 Remove the ground support and maintenance equipment, the special and standard tools and all other items.

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 RESTRICTOR VALVE - MLG EXTENTION (2538GM) - REMOVAL/INSTALLATION
________________________________________________________________
 TASK 32-31-48-000-001
 Removal of the Restrictor Valve 2538GM
 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 blanking plugs
 No specific circuit breaker(s) safety clip(s)
 No specific warning notices
 No specific access platform 1.5 m (4 ft. 11 in.)
 No specific container 5 l (1.3208 USgal)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
　
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