28-22-04
ALL ú ú 07 Page 404 ú Sep 20/98
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757 MAINTENANCE MANUAL
CENTER TANK OVERRIDE PUMP - REMOVAL/INSTALLATION
________________________________________________
TASK 28-22-05-964-001
1. Center Tank Override Pump Removal/Installation______________________________________________
A. General
(1)
Two fuel override pumps are installed on the rear spar of the center fuel tank.
(2)
The fuel override pumps move fuel to the engines as necessary.
(3)
The removal and installation procedures for the fuel override pumps are contained in AMM 28-22-03/401.
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28-22-05
ALL ú ú 01 Page 401 ú Sep 20/93
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757 MAINTENANCE MANUAL
AUTOMATIC SUMPING JET PUMP - REMOVAL/INSTALLATION
_________________________________________________
1. General_______
A. There are four automatic sumping jet pumps. There is one in each main fuel tank and two in the center fuel tank. The automatic sumping jet pumps are referred to as jet pumps in this procedure.
B. This procedure contains two tasks. The first task removes the jet pump. The second task installs the jet pump.
TASK 28-22-06-024-023
2. Remove the Jet Pump (Fig. 401)___________________
A. References
(1)
AMM 06-41-00/201, Fuselage (Major Zones 100 and 200) Access Doors and Panels
(2)
AMM 28-11-00/201, Fuel Tanks
(3)
AMM 28-11-01/401, Main Tank Access Door
(4)
AMM 28-11-02/401, Center Tank Access Door
(5)
AMM 28-26-00/201, Defueling
B.
Access
(1)
Location Zones
133 Wing Center Section (Left)
134 Wing Center Section (Right)
541 Main Tank - Rib No. 5 to No. 17 (Left)
641 Main Tank - Rib No. 5 to No. 17 (Right)
(2)
Access Panels
134AZ Center Tank Access Door (Right)
134BZ Baffle Door
134CA Baffle Door
134DZ Baffle Door
541AB Main Tank Access Door (Left)
641AB Main Tank Access Door (Right)
C.
Procedure
(1)
Defuel the applicable fuel tank (AMM 28-26-00/201).
S 654-002
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