(2)
Access Panels
531CB Center Tank Access Door (Left)
631CB Center Tank Access Door (Right)
C.
Procedure
(1)
Defuel the applicable fuel tanks (AMM 28-26-00/201).
(2)
Drain and purge the applicable fuel tank (AMM 28-11-00/201).
S 014-034
(3)
Remove the center tank access door, 531CB or 631CB
(AMM 28-11-02/401).
S 654-002
S 654-003
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FLOAT-ACTUATED VENT VALVE
SEE A
FUEL VENT FLOAT VALVE
SEE C
1. SCREW
2. WASHER FLOAT-ACTUATED VENT VALVE
3. FLOAT-ACTUATED SEE A
VENT VALVE
4. GASKET SEAL FUEL VENT FLOAT VALVE
SEE C TUBING FLANGE
FLOAT 2. WASHER
5. NUT
TUBING FLANGE
VALVE FLAPPER (4 LOCATIONS)
1. SCREW B
3. FLOAT-ACTUATED
VENT VALVE
TUBING FLANGE
SEE B
5. NUT
VENT STRINGERVENT TUBE 6. BOLT
7. WASHERFLOAT-ACTUATED VENT VALVE
8. NUT
(4 LOCATIONS)
A
FLOAT
10. FUEL VENT FLOAT VALVE
9. O-RING
FUEL VENT FLOAT VALVE
C
Float Valve - Installation Figure 401
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S 944-010
WARNING: OBEY THE FUEL TANK ENTRY PRECAUTIONS (AMM 28-11-00/201).
_______ FAILURE TO OBEY THE FUEL TANK ENTRY PRECAUTIONS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(4)
Obey the fuel tank entry precautions (AMM 28-11-00/201).
S 014-004
(5)
Go into the fuel tank and find the float-actuated vent valve (3).
S 034-005
(6)
Remove the screws (1), washers (2), and nuts (5) from the float-actuated vent valve (3) and the tubing flange.
S 024-006
(7)
Remove the float-actuated vent valve (3).
S 034-007
(8)
Remove the gasket seal (4).
S 494-008
(9)
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