(b)
Put the APU master control switch on the overhead panel, P5, to the ON position.
(c)
Listen and make sure the APU DC fuel pump operates.
(d)
Put the APU master control switch on the P5 panel to the OFF position.
(e)
Remove the DO-NOT-CLOSE tag and close this P6 panel circuit breaker: 1) 6H23, L FWD FUEL BOOST PUMP
S 094-035
WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(12)
Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
(13)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 864-051
TASK 28-25-01-004-001
4. Remove the Housing of the APU DC Fuel Pump (View A, Fig. 401)
__________________________________________
A. Equipment
(1) Container - 1 gallon capacity, to hold fuel.
Commercially available
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
28-25-01
ALL ú ú 01 Page 405 ú May 28/99
A
757
MAINTENANCE MANUAL
B. 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 28-11-02/401, Center Tank Access Door
(4)
AMM 28-25-05/401, APU Fuel Line and Shroud
(5)
AMM 28-26-00/201, Defueling
C.
Access
(1)
Location Zones
133 Wing Center Section (Left)
134 Wing Center Section (Right)
(2)
Access Panels
134AZ Center Tank Access Door (Right)
134BZ Baffle Door
134CZ Baffle Door
134DZ Baffle Door
D.
Procedure
S 034-012
(1)
Do the Remove the Motor Impeller of the APU DC Fuel Pump procedure.
S 654-013
(2)
Defuel the center fuel tank and the left main fuel tank
(AMM 28-26-00/201).
S 654-014
(3)
Drain and purge the center fuel tank (AMM 28-11-00/201).
S 014-036
(4)
Remove the center tank access door, 134AZ (AMM 28-11-02/401).
S 944-016
WARNING:_______OBEY THE FUEL TANK ENTRY PRECAUTIONS AMM 28-11-00/201. FAILURE TO OBEY THE FUEL TANK ENTRY PRECAUTIONS COULD CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
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