-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
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
No specific warning notice
No specific access platform 2.5 m (8 ft. 2 in.)
R 460005835 1 GROUND LOCK SLEEVE
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-52-22-000-001 Removal of the Fan Plenum Chamber 10HM5 (11HM5). 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 28-43-23-000-001 Removal of the Magnetic Level-Indicator Rod 92QM. 28-43-23-000-002 Removal of the Magnetic Level-Indicator Lower-Housing
91QM.
32-12-00-010-001 Open the Main Gear Doors for Access
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-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
57-17-11-000-001 28-43-23-991-003 Removal of the Covers 147AZ (148AZ)Fig. 403
3. Job Set-up__________
(Ref. Fig. 403/TASK 28-43-23-991-003)
Subtask 28-43-23-941-059
A. Safety Precautions
WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK._______
(1) Put the safety barriers in position.
(2) You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(3) Put a warning notice in position to tell persons not to operate the landing gear and the related doors.
Subtask 28-43-23-650-054
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 28-43-23-010-055
C. Get Access
R (1) Open the MLG doors (Ref. TASK 32-12-00-010-001).
R R (2) Make sure that the GROUND LOCK SLEEVE is on the MLG door actuating-cylinders.
R R (3) Put the access platform in position below the access panels 147AZ and 148AZ.
Magnetic Level Indicator 98QM - Upper Assembly Detail.
Figure 403/TASK 28-43-23-991-003
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(4) Remove the centre tank access panels 147AZ and 148AZ (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001).
R (5) Remove the access panels 191JB and 195BB and/or 196BB.
(6) Remove the left-hand fan plenum chamber, 10HM5 (Ref. TASK 21-52-22-000-001).
R R (7) Remove the MLI rod (92QM) from the MLI lower housing (91QM) (Ref. TASK 28-43-23-000-001).
R (8) Remove the MLI lower housing (91QM) (Ref. TASK 28-43-23-000-002).
4. Procedure_________
Subtask 28-43-23-020-057
A. Removal of the Magnetic Level-Indicator Upper-Housing 98QM (Ref. Fig. 403/TASK 28-43-23-991-003)
(1) Remove the screws (3) and the washers (4) and carefully move apart the upper body (5) from the center body assembly (7).
(2) Carefully remove the upper body (5) together with the float (2) from the support bracket (1).
(3) Remove and discard the O-ring (6).
(4) Remove sufficient bolts (15) from the vapor seal reinforcement (11) and the seal (12) to give access to the center body assembly (7).
(5) Remove the nut (14), the washers (10) and (13) and the screw (9), then remove the bonding strap (8) from the vapor seal edge-reinforcement.
(6) Remove the screws (17) and the washers (18) and remove the backing seal plates (16) and (19).
(7) Carefully remove the center body assembly (7) from the vapor seal membrane.
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