-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-11-28-650-003 28-10-00-910-001 28-10-00-910-002 28-25-00-650-001 28-25-00-650-003
28-25-00-869-001 28-42-00-740-001 28-46-00-740-001 57-27-11-000-002
57-27-11-400-002
WL 204400 28-42-43-991-007 28-42-43-991-009 28-42-43-991-012
3. Job Set-up
__________
Subtask 28-42-43-941-061
A. Safety Precautions
Pressure Refuel with Automatic Control
Safety Procedures When You Do Work in a Fuel Tank
Access to the Fuel Tanks and the Work Areas
Pressure Defuel
To Drain Remaining Fuel from the Wing Tanks and the
Center Tank
Fuel Transfer
Status Report (BITE)
Functional (BITE) Test
Removal of the Access Panel (540HB, 540JB, 540KB,
540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB,
550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB,
....)
Installation of the Access Panel (540HB, 540JB,
540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB,
550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB,
....)
Fig. 404
Fig. 405
Fig. 410
WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(2)
Make sure that the safety barriers are in position.
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B. Aircraft Maintenance Configuration
(1)
Make sure that the applicable fuel tank is defueled (Ref. TASK 28-25-00-650-001).
(2)
Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
(3)
Make sure that the access platform is below the applicable zone 540(640).
(4)
Make sure that the applicable access panels are removed (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-002).
-
FOR 15QT1 remove 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB
-
FOR 15QT2 remove 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB.
Subtask 28-42-43-865-057
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/FQI/CHAN/1 1QT A13 121VU FUEL/FQI/CHANNEL/1 AND 2 8QT L26 121VU FUEL/HI/LVL/SPLY 1QJ L25 121VU FUEL/FQI/CHAN/2 2QT M27 121VU FUEL/PUMPS/2/R CTL AND L IND 10QA R29 121VU FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND 32QA R26 121VU FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND 31QA R25 121VU FUEL/PUMPS/1/L CTL AND R IND 3QA R23
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4. Procedure
_________ Subtask 28-42-43-420-096
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 interfaces and the adjacent areas with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-004).
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Make sure that the parts retained from the removed component are clean and in the correct condition.
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