(2)
Drain the remaining fuel from the applicable fuel tank (Ref. TASK 28-25-00-650-003).
Subtask 28-42-43-865-065
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/FQI/CHAN/1 1QT A13 49VU FUEL/XFR VALVE1/WING/R 2QP A11 49VU FUEL/XFR VALVE1/WING/L 1QP A10 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/XFR VALVE2/WING/R 4QP M23 121VU FUEL/XFR VALVE2/WING/L 3QP M22 121VU FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND 32QA R26 121VU FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND 31QA R25
Subtask 28-42-43-010-063
D. Get Access
(Ref. Fig. 401/TASK 28-42-43-991-003)
(1)
Put the access platform in position below the applicable zone 540 (640).
(2)
Remove the applicable access panels (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-001) and (Ref. TASK 57-27-11-000-002): FOR 13QT1
-
remove 540AB, 540BB, 540DB, 540GB, 540JB, 540KB, 574BB - open 540AZ FOR 13QT2
-
remove 640AB, 640BB, 640DB, 640GB, 640JB, 640KB, 674BB - open 640AZ.
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Wing Tank - Access Panel Locations
Figure 401/TASK 28-42-43-991-003
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(3) Install the HOOK-COVER (RIB 2 SURGE DOORS) (98D57004013000) on the door 540AZ (640AZ).
4. Procedure
_________
(Ref. Fig. 401/TASK 28-42-43-991-003, 402/TASK 28-42-43-991-004) **ON A/C 001-049, 051-099, 101-105, 151-199, 201-228,
Subtask 28-42-43-020-091
A. Remove the Wing-Tank Inner-Cell Group A Harness 13QT1 (13QT2)
(Ref. Fig. 403/TASK 28-42-43-991-006)
WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE
_______
LOCKWIRE CAN CUT OR BLIND YOU.
(1) Remove the harness 13QT1 (13QT2) at RIB 1 and RIB 2 as follows:
(a) Get access through the opening 540AB(640AB) and the access door 540AZ(640AZ) to:
-
the fuel probes 21QT1(21QT2), 23QT1(23QT2) and 25QT1(25QT2)
-
the fuel sensors 16QJ1(16QJ2), 29QJ1(29QJ2) and 38QJ1(38QJ2)
-
the sensor cadensicon 19QT1(19QT2).
(b)
Disconnect the terminal connectors (2) from the terminal block of the fuel probes 21QT1(21QT2), 23QT1(23QT2) and 25QT1(25QT2) and the sensor cadensicon 19QT1(19QT2).
(c)
Remove and discard the terminal connectors (2) from the ends of the harness.
(d)
Loosen the clamp screws (21), the connector screws (20) and remove the cables from the fuel sensors 16QJ1(16QJ2), 29QJ1(29QJ2) and 38QJ1(38QJ2).
(e)
Remove and discard the cable-ties (1) from the harness 13QT1(13QT2) and from the fuel probes 21QT1(21QT2), 23QT1(23QT2) and 25QT1(25QT2).
(f)
Remove the bolt (4) to release the P clip (3).
(g)
Remove the harness 13QT1(13QT2) from the P clip (3) and use the bolt (4) to temporarily install the P clip (3).
(h)
Remove the spacer sleeve (6) from the harness 13QT1(13QT2).
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Electrical Harness 13QT1(13QT2) and 14QT1(14QT2) - Cable Routing
Figure 402/TASK 28-42-43-991-004
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Electrical Harness 13QT1(13QT2) at RIBS 1 and 2 - Location and Detail
Figure 403/TASK 28-42-43-991-006
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(2)
Remove the harness 13QT1 (13QT2) at RIB 3, RIB 4 and RIB 5 as follows: (Ref. Fig. 404/TASK 28-42-43-991-007)
(a)
Get access through the opening 540AB (640AB) and the openings in RIB3, RIB4 and RIB5.
(b)
Disconnect the terminal connectors (2) from the terminal block of the fuel probe 27QT1(27QT2).
(c)
Remove and discard the terminal connectors (2) from the ends of the harness.
(d)
Remove and discard the cable-ties (1) from the harness.
(3)
Remove the harness 13QT1 (13QT2) at RIB 6 as follows: (Ref. Fig. 404/TASK 28-42-43-991-007)
(a)
Get access through the opening 574BB(674BB).
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