(2)
Access Panels
1201 Electronic Equipment Access Door
3804 APU Cowl Door
C. Procedure
S 864-002
(1) Set the switch and the circuit breaker:
(a)
Set the APU master switch on the P5 forward overhead panel to the OFF position and attach a DO-NOT-OPERATE tag.
(b)
Open this circuit breaker and attach a DO-NOT-CLOSE tag: 1) E3-3 Electrical Shelf, APU Control Unit
S 014-003
(2) Open the APU cowl door:
(a)
Open the latches for the APU cowl door.
(b)
Open the APU cowl door.
(c)
Connect the door support rods.
S 014-004
CAUTION:_______BE CAREFUL WHEN YOU MOVE THE LOWER SHROUD. DAMAGE TO THE SHROUD DRAIN LINES CAN OCCUR.
(3) Remove the lower shroud:
(a)
Hold the lower shroud and open the shroud latches.
(b)
Remove the lower shroud.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
FUEL SOLENOID VALVE
ELECTRICAL CONNECTOR
FWD
INBD
SEE B
A
HIGH PRESSURE
ATTACHMENT FUEL LINE
SCREW
HIGH PRESSURE
ATTACHMENT FUEL LINE
SCREW
ELECTRICAL
CONNECTOR
FUEL CONTROL FUEL
UNIT (TO ATOMIZER) FUEL LINE HIGH PRESSURE VALVE SOLENOID UNIT CONTROL FUEL
HIGH PRESSURE
B 1 FUEL LINE
(TO ATOMIZER)
B 2
1 AIRPLANES WITHOUT THE TAFCU
2 AIRPLANES WITH THE TAFCU
Fuel Solenoid Valve Installation
Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 024-005
(4) Remove the fuel solenoid valve from the APU:
(a)
Put the container below the fuel solenoid valve.
(b)
Remove the lockwire from the electrical connector for the fuel solenoid valve.
(c)
Disconnect the electrical connector from the fuel solenoid valve.
(d)
Disconnect the high pressure fuel line from the fitting on the fuel control unit.
(e)
Permit the fuel from the fuel control unit and the high pressure fuel line to drain into the container.
(f)
Disconnect the high pressure fuel line from the fitting on the fuel solenoid valve.
(g)
Remove the lockwire from the screws that attach the fuel solenoid valve to the APU.
(h)
Remove the screws and washers that attach the fuel solenoid valve to the APU.
(i)
Remove the fuel solenoid from the APU.
(j)
Install the caps, covers and plugs on all the disconnected lines, electrical connector and ports to prevent contamination.
(k)
Remove the container with the fuel from below the fuel solenoid valve.
TASK 49-31-31-404-006
3. Fuel Solenoid Valve Installation (Fig. 401)
________________________________
A. References
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737-300 400 500 AMM 飞机维护手册 AIRBORNE AUXILIARY POWER 2(28)
