(2)
 Apply FUELS (Material No. 01-001) on the new O-rings (12) and (21).

 (3)
 Install the O-ring (21) on the valve (20).

 (4)
 Install the O-rings (12) on the valve (20).

 (5)
 Apply COMMON GREASE (Material No. 04-017) on the shaft end of the valve (20).

 (6)
 Apply SEALANTS (Material No. 09-001) on the head of the screws (2).

 (7)
 Install the valve (20) on the lines (11) and (14) and then on the rear spar (1).

 NOTE : Make sure that the valve (20) is in the closed position.
____
 (8) Install the screws (2).
 1EFF : ALL 1 28-25-43Page 409 1 1 Aug 01/05 1 1 1CES 1

 (9) Attach the line (11) to the support (8) with the bolts (9) and the nuts (10).
 (10)
 Attach the line (14) to the support (18) with the bolts (16) and the nuts (17).

 (11)
 Tighten the nuts (13).

 (12)
 Connect the bonding strips (4) and (19). Install the bolts (3), the washers (5) and the nuts (6).

 (13) Install the valve actuator 11QU (Ref. TASK 28-25-53-400-001). R **ON A/C 106-149, 221-228, 231-299, 301-399, 401-499,
 Subtask 28-25-43-420-050-A
 A. Installation of the Center Tank Defuel/Transfer Valve
 (1)
 Remove the blanking plugs from the disconnected line ends.

 (2)
 Apply FUELS (Material No. 01-001) on the new O-rings (12) and (21).

 (3)
 Install the O-ring (21) on the valve (20).

 (4)
 Install the O-rings (12) on the valve (20).

 (5)
 Apply COMMON GREASE (Material No. 04-017) on the shaft end of the valve (20).

 (6)
 Apply SEALANTS (Material No. 09-001) on the head of the screws (2).

 (7)
 Install the valve (20) on the lines (11) and (14) and then on the rear spar (1).

 NOTE : Make sure that the valve (20) is in the closed position.
____
 (8)
 Install the screws (2) and tighten.

 (9)
 Install the drive assembly (32) and the bonding lug (31).

 (10)
 Install the nuts (30) and tighten.

 (11)
 Attach the line (11) to the support (8) with the bolts (9) and the nuts (10).

 1EFF : ALL 1 28-25-43Page 410 1 1 Aug 01/05 1 1 1CES 1 1EFF : ALL 1 28-25-43Page 411 1 1 Nov 01/00 1 1 1CES 1 VALVE - FUEL DRAIN (31QM,32QM) - REMOVAL/INSTALLATION

R R  (12) Attach the line (14) to the support (18) with the bolts (16) and the nuts (17). 
R  (13) Tighten the nuts (13). 
R R  (14) Connect the bonding strips (4) and (19). Install the bolts (3), the washers (5) and the nuts (6). 
R  (15) Install the valve actuator 11QU (Ref. TASK 28-25-53-400-001). 
R  **ON A/C ALL
 Subtask 28-25-43-710-050
 B. Do the operational test of the defuel system (Ref. TASK 28-25-00-710-002).
 Subtask 28-25-43-790-050
 C. Make sure that there is no leakage at the valve (20) and remove the container.
 5. Close-up________
 Subtask 28-25-43-410-050
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 (2) Install the manhole cover 148AZ (Ref. TASK 57-17-11-400-001).
 (3) Close the main door of the right main gear (Ref. TASK 32-12-00-410-001).
 (4) Remove the access platform(s).
 Subtask 28-25-43-650-051
 B. Refuel the center tank (Ref. TASK 12-11-28-650-003).

_____________________________________________________
 TASK 28-25-44-000-001
 Removal of the Fuel Drain Valve
 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
 -------------------------------------------------------------------------------
No specific blanking plugs
　
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