28-42-46-991-001 Fig. 401
3. Job Set-up
__________ Subtask 28-42-46-941-051
A. Safety Precautions 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) Put the safety barriers in position. Subtask 28-42-46-650-050
B. Fuel Configuration
(1)
Defuel the applicable fuel tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
Subtask 28-42-46-865-050
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/FQI/CHAN/1 1QT A13 121VU FUEL/FQI/CHANNEL/1 AND 2 8QT L26 121VU FUEL/FQI/CHAN/2 2QT M27
Subtask 28-42-46-010-050
D. Get Access
(1)
Put the access platform in position below the access panel 540AB.
(2)
Remove the access panel 540AB, (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-001).
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4. Procedure
_________
(Ref. Fig. 401/TASK 28-42-46-991-001) Subtask 28-42-46-020-051
A. Removal of the Dualcomp (53QT)
(1)
Remove the nuts (7), (8) and (9) and the washers (5), (6) and (10).
(2)
Remove the electrical connectors (2), (3) and (4) from the dualcomp (1).
(3)
Put blanking caps on the disconnected electrical connectors.
(4)
Remove the nuts (16), (17) and (18) and the washers (19), (20) and (21).
(5)
Remove the electrical connectors (22), (23) and (24) from the dualcomp (1).
(6)
Put blanking caps on the disconnected electrical connectors.
(7)
Remove the bolts (11) and the washers (12).
(8)
Move the P-clips (13) and (15) away from the dualcomp (1).
(9)
Remove the dualcomp (1).
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Dualcomp - Location and Detail
Figure 401/TASK 28-42-46-991-001
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1 1 May 01/04
1 1
1CES 1
TASK 28-42-46-400-001
Installation of the Dualcomp (53QT)
WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING
_______
NOTICES ARE IN POSITION.
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 safety barriers R No specific Torque Wrench : range 5.00 to 35.00 lbf.in R (0.05 to 0.40 m.daN) R
No specific Torque Wrench : range 28 to 48 lbf.in
(0.31 to 0.54 m.daN)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 09-001 USA MIL-S-8802 TYPE I CLASS A
FUEL TANK SEALANTPOLYSULFIDE (Ref. 20-31-00)
Material No. 11-026 GB DEF-STAN 68-148/1
SOLVENT GENERAL PURPOSE (Ref. 20-31-00)
Material No. 19-003 USA AMS 3819
LINT-FREE COTTON CLOTH (Ref. 20-31-00)
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-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control
20-28-00-912-043 Electrical Bonding by Direct Contact
28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank
28-10-00-910-002 Access to the Fuel Tanks and the Work Areas
28-25-00-650-001 Pressure Defuel
28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank
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