(6)
 Loosen the nuts (28) (Ref. Detail E).

 (7)
 Remove the cross-union (5) together with the lines (4) and (6). NOTE : Play at the connections between the line (4) and the

____ cross-union (5), and, the line (6) and the cross-union (5) will help you release the lines.

 (8)
 Remove and discard the O-ring (20).

 (9)
 Remove the nuts (30), the bonding lug (31) and the drive assembly (32).

 (10) Remove the screws (17).
 1EFF : ALL 1 28-23-41Page 407 1 1 Aug 01/05 1 1 1CES 1 1EFF : ALL 1 28-23-41Page 408 1 1 Nov 01/00 1 1 1CES 1 TASK 28-23-41-400-001

R  (11) Remove the valve (3), and remove and discard the O-ring (15). 
R R  NOTE : Play at the connections between the lines (1) and (2) will____ help you release the valve (3). 
R  (12) Remove and discard the O-rings (18) and (29). 
R  **ON A/C ALL
 Subtask 28-23-41-530-050
 B. Put blanking plugs on the disconnected pump (19) end and the disconnected lines (2), (4), (6) and (26) ends.

 Installation of the Fuel Crossfeed Valve (10QM)
 WARNING : OBEY THE FUEL 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 access platform 1.65 m (5 ft. 5 in.)
 B. Consumable Materials
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
Material No. 01-001 USA ASTM-D-1655-93 (JET A-1) FUEL, TURBO (Ref. 20-31-00) R Material No. 04-017 USA A-A-59173 SILICONE GREASE (Ref. 20-31-00) Material No. 09-001 USA MIL-S-8802 TYPE I CLASS A FUEL TANK SEALANTPOLYSULFIDE (Ref. 20-31-00)
 C. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
 -------------------------------------------------------------------------------
15 O-ring 28-23-05 03 -050 15 O-ring 28-23-05 03A-050 18 O-rings 28-23-05 01B-110 18 O-rings 28-23-05 01C-110 18 O-rings 28-23-05 01D-110 20 O-ring 28-23-05 01B-130 20 O-ring 28-23-05 01C-130 20 O-ring 28-23-05 01D-130
 1EFF : ALL 1 28-23-41Page 409 1 1 Aug 01/04 1 1 1CES 1 -------------------------------------------------------------------------------

FIG.ITEM |DESIGNATION |IPC-CSN
 -------------------------------------------------------------------------------
29 O-ring 28-23-05 02A-100 29 O-ring 28-23-05 02B-100 29 O-ring 28-23-05 02C-100
 D. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 28-23-00-720-001 Operational Test of Crossfeed Valve Using Individual
 Motors: ... 28-23-51-000-001 Removal of the Crossfeed Valve Actuator 5QE 28-23-51-400-001 Installation of the Crossfeed Valve Actuator 5QE 28-25-00-650-001 Pressure Defuel 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access 57-17-11-000-001 Removal of the Covers 147AZ (148AZ) 57-17-11-400-001 Installation of the Covers 147AZ (148AZ) 28-23-41-991-001 Fig. 401
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 229-230,
 28-23-41-991-002 Fig. 402
R **ON A/C 106-149, 221-228, 231-299, 301-399, 401-499,
 28-23-41-991-002-A Fig. 402A
 1EFF : ALL 1 28-23-41Page 410 1 1 Aug 01/05 1 1 1CES 1 **ON A/C ALL

 3. Job Set-up
__________
 Subtask 28-23-41-860-050

 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the wing and center tanks (Ref. TASK 28-25-00-650-001) are defueled.

 (2)
 On the panel 40VU, make sure that :

 -the FUEL/X FEED pushbutton switch 4QE is not pushed. (The ON and OPEN legends of the pushbutton switch are off).

 (3)
 Make sure that the access platform is in position under the main door of the right main gear.

 (4)
 Make sure that the main door of the right main gear (Ref. TASK 32-12-00-010-001) is open.

 (5)
 Make sure that the manhole cover 148AZ (Ref. TASK 57-17-11-000-001) is removed.

 (6)
　
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