(2)
AMM 57-30-11/401, Boost Pump Access Door
(3)
AMM 71-00-00/201, Power Plant
B. Access
(1)
Location Zones
101 Control Cabin Left
102 Control Cabin Right
305 Left Fuel Tank
405 Right Fuel Tank
(2)
Access Panels
7201 Boost Pump Access Door
7401 Boost Pump Access Door
C. Prepare for the Test
S 862-001
(1) Make sure these quantities are in the fuel tanks:
(a)
Tanks No. 1 and 2 1600 |100 pounds (725 |45 kilograms)
(b)
Center Tank No restriction
S 862-005
(2) If the center tank contains some fuel, do these steps:
(a) Remove these access panels for the boost pumps for the center tank (AMM 57-30-11/401): 1) Access panel, 7201L, for the left center tank boost pumps
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737-300/400/500MAINTENANCE MANUAL
2) Access panel, 7401R, for the right center tank boost pumps.
(b) Close the removal valves manually (AMM 28-22-41/401).
D. Procedure
S 712-059
WARNING: CAREFULLY DO ALL OF THE SAFETY PROCEDURES BEFORE YOU START THE
_______ ENGINES. BAD INJURY TO PERSONS AND EQUIPMENT CAN OCCUR.
(1)
Start the two engines (AMM 71-00-00/201).
S 862-079
(2)
Set the engines to idle power (approximately 1200 - 1400 pounds per hour, 544 - 635 kilograms per hour).
S 712-076
(3)
Permit the engines to operate at idle power with boost pumps on for a minimum of two minutes. (This time is referred to as "the warm-up period").
NOTE: With ambient conditions of extreme cold, it can be
____ necessary to permit the engine to warm up for more time.
S 712-077
(4) Carefully note any fast changes in N1, N2 or fuel flow during the warm up period.
(a) At the end of the warm-up period, carefully note and write down the parameters N1, N2, and fuel flow for each engine.
S 862-007
(5)
Make sure the fuel crossfeed valve is closed.
S 712-008
(6)
Stop the operation of the forward boost pump and the aft boost pump for the No. 1 tank.
(7)
Operate the engines at IDLE for a minimum of 5 minutes.
S 712-010
(8)
Monitor N1, N2, and the fuel flow on the No. 1 engine for
deterioration or fast changes.
S 712-009
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737-300/400/500MAINTENANCE MANUAL
S 712-078
(9)
Start the operation of the forward and the aft boost pumps for the No. 1 tank again.
S 712-080
(10)
Stop the operation of the forward boost pump and the aft boost pump for the No. 2 tank.
S 712-081
(11)
Operate the engines at IDLE for a minimum of 5 minutes.
S 712-082
(12)
Monitor N1, N2, and the fuel flow on the No. 2 engine for deterioration or fast changes.
S 862-083
(13)
Start the operation of the forward and the aft boost pumps for the No. 2 tank again.
S 792-011
(14)
If you see deterioration or fast changes, do the task: "Engine Fuel Feed Lines/Coupling Vacuum Test".
S 862-012
(15)
Stop the engines and open the removal valves for the boost pumps for the center tank (if they are closed).
S 862-014
(16)
Open the removal valve for each boost pump for the center tank if you closed it during this procedure.
S 412-013
(17)
Install the access panels for the boost pumps for the center tank, if you removed them during this procedure (AMM 57-30-11/401).
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本文链接地址：737-300 400 500 AMM 飞机维护手册 燃油 FUEL 2(69)
