(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
1EFF : ALL 1 28-25-44Page 409 1 1 Feb 01/98 1 1 1CES 1
VALVE - PRESSURE RELIEF, CENTER TANK (97QM) - REMOVAL/INSTALLATION
__________________________________________________________________ TASK 28-25-45-000-001 Removal of the Center-Tank Pressure-Relief Valve (97QM) WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
WARNING : MAKE SURE THAT THE "MAN INSIDE" FLAG HANGS FROM THE WING DOOR PANEL
_______ OPENING.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 1.65 m (5 ft. 5 in.) No specific access platform 2.11 m (6 ft. 11 in.) 98D57004014000 1 HOOK-COVER (RIB2-SURGE DOORS)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
28-25-00-650-001 Pressure Defuel
32-12-00-010-001 Open the Main Gear Doors for Access
57-17-11-000-001 Removal of the Covers 147AZ (148AZ)
57-27-11-000-001 Removal of the Access Panel (540AB, 540BB, 540CB,
540DB, 540EB, 540FB, 540GB, 640AB, 640BB, 640CB, 640DB, 640EB, 640FB, 640GB) 28-25-45-991-001 Fig. 401
3. Job Set-up
__________ Subtask 28-25-45-650-050
A. Defuel the center tank and the right wing tank (Ref. TASK 28-25-00-650-001).
1EFF : ALL 1 28-25-45Page 401 1 1 Feb 01/98 1 1 1CES 1 Subtask 28-25-45-010-050
B. Get Access
(1)
Open the main door of the right main gear (Ref. TASK 32-12-00-010-001).
(2)
Put the access platform at zone 142.
(3)
Put the access platform at zone 640.
(4)
Remove the manhole cover 148AZ (Ref. TASK 57-17-11-000-001).
(5)
Remove the manhole cover 640AB (Ref. TASK 57-27-11-000-001).
(6)
Open the surge door 640BZ.
(7)
Install the HOOK-COVER (RIB2-SURGE DOORS) (98D57004014000) (7) at the surge door. (Ref. Fig. 401/TASK 28-25-45-991-001)
4. Procedure
_________
(Ref. Fig. 401/TASK 28-25-45-991-001) Subtask 28-25-45-020-050
A. Removal of the Center Tank Pressure Relief Valve (97QM)
(1)
Remove the nuts (3), the bolts (6) and remove and discard the washers (5).
(2)
Remove the valve (2) and remove and discard the O-ring (4).
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Pressure Relief Valve of Center Tank
Figure 401/TASK 28-25-45-991-001
1EFF : ALL 1 28-25-45 Page 403
1 1 Feb 01/98
1 1
1CES 1
TASK 28-25-45-400-001
Installation of the Center-Tank Pressure-Relief Valve (97QM)
WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
WARNING : MAKE SURE THAT THE "MAN INSIDE" FLAG HANGS FROM THE WING DOOR PANEL
_______
OPENING.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 1.65 m (5 ft. 5 in.)
No specific access platform 2.11 m (6 ft. 11 in.)
98D57004014000 2 HOOK-COVER (RIB2-SURGE DOORS)
B. Consumable Materials
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R Material No. 01-001 USA ASTM-D-1655-93 (JET A-1) FUEL, TURBO (Ref. 20-31-00)
C. Expendable Parts
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