C. Test Procedure
S 215-059
(1)
Make sure the center tank, No. 1 tank and No. 2 tank each have a minimum of 2000 pounds (900 kilograms) of fuel.
S 865-002
(2)
Make sure all the switches for the fuel boost pumps on the overhead panel are in the OFF position.
(3)
Connect the electrical power to the airplane (AMM 24-22-00/201).
S 865-004
(4)
Make sure these circuit breakers are closed:
S 865-003
(a) P6-3 Main Power Distribution Panel
1) CTR TANK BOOST PUMP LEFT
2) CTR TANK BOOST PUMP RIGHT
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A 737-300/400/500MAINTENANCE MANUAL
3) 4) 5) 6) 7) 8) TANK 1 BOOST PUMP - AFTTANK 1 BOOST PUMP - FWDTANK 2 BOOST PUMP - FWDTANK 2 BOOST PUMP - AFTFUEL CONT NO. 1 AFT NO. 2 FWD CTR LFUEL CONT NO. 1 FWD NO. 2 AFT CTR R
(5) S 715-005On the forward overhead panel, make sure these indication lights are on: (a) The LOW PRESSURE light for the forward boost pump for the No. 1 tank (b) The LOW PRESSURE light for the aft boost pump for the No. 1 tank (c) The LOW PRESSURE light for the forward boost pump for the No. 2 tank (d) The LOW PRESSURE light for the aft boost pump for the No. 2 tank.
(6) S 715-006Push these indication lights to make sure they come on:
NOTE:____ The lights are PRESS-TO-TEST.
(a) (b) The LOW PRESSURE light for the left boost pump in the center tankThe LOW PRESSURE light for the right boost pump in the center tank
(7) S 865-007Set the engine fire switches, on the aft electronic panel (P8-1), to the FIRE position to close the engine shutoff valves.
(8) S 865-008Make sure that the APU master switch, on the forward overhead panel, is in the OFF position.
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A
737-300/400/500MAINTENANCE MANUAL
S 865-009
(9)
Make sure the crossfeed valve switch, on the forward overhead panel, is in the CLOSED position.
S 865-010
(10)
Make sure the manual defueling valve is closed.
S 715-011
(11)
Set the switch for the forward boost pump for the No. 1 tank to the ON position.
S 715-012
(12)
When the fuel pressure increases to the correct quantity, make sure the LOW PRESSURE light for the forward boost pump in the No. 1 tank goes off.
S 715-049
(13)
Make sure there is no fuel leakage at the pressure switch.
S 715-013
(14)
When the LOW PRESSURE light goes off, put the switch for the forward boost pump in the No. 1 tank back to the OFF position.
S 715-014
(15)
Set the switch for the aft boost pump for the No. 1 tank to the ON position.
S 715-015
(16)
When the fuel pressure increases to the correct quantity, make sure the LOW PRESSURE light for the aft boost pump in the No. 1 tank goes off.
(17)
Make sure there is no fuel leakage at the pressure switch.
S 715-016
(18)
When the LOW PRESSURE light goes off, put the switch for the aft boost pump in the No. 1 tank back to the OFF position.
S 715-017
(19)
Set the switch for the forward boost pump for the No. 2 tank to the ON position.
S 715-050
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