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B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 28-12-45-000-001 Removal of the Panel Assembly 550CB(650CB) 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank
57-27-11-000-002 Removal of the Access Panel (540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB, ....)
28-46-43-991-002 Fig. 401
3. Job Set-up
__________
Subtask 28-46-43-941-052
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 28-46-43-650-054
B. Fuel Configuration
(1) Drain the remaining fuel from the applicable vent surge tank (Ref. TASK 28-25-00-650-003).
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Subtask 28-46-43-865-050
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
49VU FUEL/XFR VALVE1/WING/R 2QP A11
49VU FUEL/XFR VALVE1/WING/L 1QP A10
**ON A/C 301-399,
49VU FUEL/AFT LOW LVL/& OVFL/WING R 44QJ A11
49VU FUEL/AFT LOW LVL/& OVFL/WING L 43QJ A10
**ON A/C ALL
Subtask 28-46-43-010-053
D. Get Access
(1)
Put the access platform in position below the applicable access panels 550DB, 560AB and 550CB (650DB, 560AB and 650CB).
(2)
Remove the applicable access panels 550CB (650CB), 550DB (650DB) and 560AB (660AB) (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-002), (Ref. TASK 28-12-45-000-001):
-
FOR 34QJ1
remove 550CB, 550DB, 560AB
-
FOR 34QJ2
remove 650CB, 650DB, 660AB.
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4. Procedure
_________
(Ref. Fig. 401/TASK 28-46-43-991-002) Subtask 28-46-43-020-052
A. Removal of the Vent Surge Tank Harness
(1)
Get access through the opening 550CB(650CB) and loosen :
-
the clamp screw (5)
-
the electrical connector screws (1).
(2)
Cut and discard the cable ties (3).
(3)
Disconnect the end of the harness (4) from the sensor 28QJ1 (28QJ2).
(4)
Attach a length of cord to the inboard end of the harness (4). This will help to install a new harness.
(5)
Get access through the opening 560AB(660AB) and disconnect the bayonet electrical connector (11) from the connector (7).
(6)
Put blanking caps on the disconnected electrical connectors.
(7)
Remove the nut (10) and the washer (9).
(8)
Get access through the opening 550DB(650DB) and cut and discard the cable tie (6).
(9)
Remove the connector (7) from the hole in RIB26.
(10)
Remove and discard the O-ring (8).
(11)
Carefully pull the harness (4), and the attached end of the cord, outboard from the conduit (2). When the cord hangs from the outboard end of the conduit (2), release it from the harness (4).
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Vent Surge Tank Harness 34QJ1(34QJ2) Figure 401/TASK 28-46-43-991-002
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TASK 28-46-43-400-001
Installation of the Vent Surge Tank Harness
WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING
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