737-300 400 500 AMM 飞机维护手册 AIRBORNE AUXILIARY POWER 2(20)

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 S 414-019-001
 CAUTION: KEEP A MINIMUM CLEARANCE OF 0.18 INCHES (5 MM) BETWEEN THE
_______ ENGINE, FIRE DETECTOR, CLAMPS AND LOWER SHROUD.
 BE CAREFUL WHEN YOU MOVE THE LOWER SHROUD. DAMAGE TO THE SHROUD DRAIN LINES CAN OCCUR.
 (11) Install the lower shroud:
 (a)  
Hold the lower shroud against the upper shroud.

 (b)  
Close the shroud latches.

 S 414-020-001
 (12) Close the APU cowl door:
 (a)  
Disconnect the door support rods.

 (b)  
Put the door support rods in the clips on the APU cowl door.

 (c)  
Close the APU cowl door.

 (d)  
Close the latches for the APU cowl door.

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 49-31-11
 ú CONFIG 1 ú 01 Page 406 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 864-021-001
 (13) Remove the DO-NOT-OPERATE tag from the APU master switch on the P5 forward overhead panel.
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 49-31-11
 ú CONFIG 1 ú 01 Page 407 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL CONTROL UNIT - REMOVAL/INSTALLATION
________________________________________
 1.  General
_______
 A.  This procedure gives the tasks to remove and to install the fuel control unit. The fuel control unit is on the forward left side of the APU. The fuel control unit has a timed acceleration. Some fuel control units have primer pushbuttons. These pushbuttons are not necessary. Fuel control units with and without the pushbuttons are interchangeable.
 B.  You get access to the fuel control unit through the APU cowl door and the lower shroud.
 TASK 49-31-11-004-001-002
 2.  Fuel Control Unit Removal (Fig. 401)
_________________________
 A.  Standard Tools and Equipment
 (1)  Container - 1 U.S. Gallon (4 Liter) capacity, for fuel
 B.  References
 (1)  
AMM 49-31-21/401, Low Pressure Fuel Filter

 (2)  
AMM 49-31-31/401, Fuel Solenoid Valve

 (3)  
AMM 49-31-81/301, High Pressure Fuel Filter

 C.  Access
 (1)  
Location Zones
 101 Control Cabin (Left)
 205 Electronic Compartment
 703 APU Compartment

 (2)  
Access Panels
 1201 Electronic Equipment Access Door
 3804 APU Cowl Door

 

 D.  Procedure
 S 864-002-002
 (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 014-003-002
 (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.

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 49-31-11
 ú CONFIG 2 ú 01 Page 401 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE B
SEE A
TIMED ACCELERATION
FUEL FUEL CONTROL UNIT

CONTROL AIR LINE
HOSE (COMPRESSOR DISCHARGE AIR) FWD
ELBOW
A
TEE FITTING
NUT WASHER
SEEC 1 STUD
HALF SHAFT
PIN
DRIVE THREADED DRAIN MOUNTING SEAL
SHAFT COUPLING OUTLET PAD
LOW PRESSURE HALF SHAFT FUEL FILTER SPIDER SPLINED
NUT
　
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