(8)
Make sure that the MLI rod (92QM) has been removed from the MLI lower housing (91QM) (Ref. TASK 28-43-23-000-001).
(9)
Make sure that the MLI lower housing (91QM) is removed (Ref. TASK 28-43-23-000-002).
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4. Procedure
_________
(Ref. Fig. 403/TASK 28-43-23-991-003)
Subtask 28-43-23-420-063
R A. Preparation for Installation
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1) Clean the component interface and/or the adjacent area with a R MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS R (Material No. 11-026).
(2)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(3)
Do an inspection of the component interface and/or the adjacent area.
(4)
Apply FUELS (Material No. 01-001) or COMMON GREASE (Material No. 04-012) to the new O-ring (6) and the new O-ring (20).
Subtask 28-43-23-420-057
B. Installation of the Magnetic Level-Indicator Upper-Housing 98QM
(1)
Install the new O-ring (20) on the center body assembly (7).
(2)
Carefully install the center body assembly (7), together with the backing seal plates (16) and (19), on the vapor-seal membrane. Install the screws (17) and the washers (18) in the center body assembly (7).
(3)
Install the bonding strap (8) with the screw (9), the washers (10) and (13) and the nut (14) (Ref. TASK 20-28-00-912-002).
(4)
Apply a thin layer of SEALANTS (Material No. 09-007) to the interface of the bolts (3).
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(5)
Install the new O-ring (6) in the upper body (5).
(6)
Carefully install the upper body (5) together with the float (2) into the support bracket (1).
(7)
Attach the upper body (5) to the center body (7) with the washers (4) and the bolts (3).
(8)
Apply a thin layer of SEALANTS (Material No. 09-007) over the bolts
(3) and the washers (4). Subtask 28-43-23-410-057
C. Close Access
(1) Install the center tank access panels 147AZ, 148AZ (Ref. TASK 57-17-11-400-001).
Subtask 28-43-23-650-053
D. Fuel Configuration
(1) Refuel the center tank (Ref. TASK 12-11-28-650-003). Subtask 28-43-23-790-050
E. Test
(1)
Make sure that the float (2) moves smoothly along the complete length of the MLI housing tube.
(2)
Make sure that the fuel does not leak from the MLI upper housing.
5. Close Up
________ Subtask 28-43-23-410-052
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the MLI lower housing 91QM (Ref. TASK 28-43-23-400-002).
(3)
Install the MLI rod 92QM (Ref. TASK 28-43-23-400-001).
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(4)
Install the left-hand fan plenum chamber, 10HM5 (Ref. TASK 21-52-22-400-001).
(5)
Install the access panels 191JB and 195BB and/or 196BB.
R (6) Close the MLG doors (Ref. TASK 32-12-00-410-001). Subtask 28-43-23-650-055
B. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. TASK 12-11-28-650-003), (Ref. TASK 28-25-00-650-001) or (Ref. TASK 28-25-00-869-001).
Subtask 28-43-23-942-051
C. Removal of Equipment
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the safety barriers.
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s).
(5)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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ATTITUDE MONITOR - FUEL QUANTITY (39QM) - REMOVAL/INSTALLATION
______________________________________________________________ TASK 28-43-24-000-001 Removal of the Attitude Monitor WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
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