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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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  SHROUD UPPER 
UPPER SHROUD 
TURBINE EXHAUST PORT 
ELECTRICAL CONNECTOR BLEED LOAD CONTROL AIR LINE FOR THE  CONNECTOR ELECTRICAL A 2  VALVE SOLENOID 3-WAY  FWD 
FWD  A  1  VALVE SOLENOID 3-WAY 
1 2 Figure 401 3-Way Solenoid Valve - Installation AIRPLANES WITH THE ETC AIRPLANES WITHOUT THE ETC 

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 49-52-61
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(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.

 S 024-005
 (4)  Remove the solenoid valve:
 (a)  
Disconnect the electrical connector from the solenoid valve.

 (b)  
Disconnect the three air lines from the solenoid valve fittings. 1) Identify the air lines with tags to make sure you install

 them correctly.

 (c)  
Remove the two bolts, the nuts, and the washers that attach the solenoid valve to the bracket.

 (d)  
Remove the solenoid valve.

 S 034-007
 (5)  Remove the fittings and the packings from the solenoid valve.
 (a)  Discard the packings.
 TASK 49-52-61-404-006
 3.  Solenoid Valve Installation (Fig. 401)___________________________
 A. References
 (1)  IPC 49-50-00 Fig. 2
 B. Access
 (1)  
Location Zones
 101 Flight Compartment, LH
 205 Electronic Compartment
 703 APU Compartment

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

 C. Procedure
 S 434-008
 (1)  Install the solenoid valve fittings:
 (a)  
Install the new packings on the fittings.

 (b)  
Install the fittings in the solenoid valve.

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////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
S 424-009
 (2)  Install the solenoid valve:
 (a)  
Attach the solenoid valve to the mounting bracket with the bolts, the nuts, and the washers. 1) Tighten the nuts to 20-25 pound-inches

 (2.3-2.8 newton-meters).

 (b)  
Connect the air lines to the solenoid valve fittings. 1) Remove the identification tags if it is necessary.

 (c)  
Connect the electrical connector to the solenoid valve. 1) Install a lockwire on the connector.

 S 414-010
 CAUTION: KEEP A MINIMUM CLEARANCE OF 0.18 INCHES (5 MM) BETWEEN THE
_______ ENGINE, THE FIRE DETECTOR, THE CLAMPS, AND THE LOWER SHROUD.
 BE CAREFUL WHEN YOU MOVE THE LOWER SHROUD.  DAMAGE TO THE
 SHROUD DRAIN LINES CAN OCCUR.
 (3)  Install the lower shroud: (a) Hold the lower shroud against the upper shroud. (b) Close the shroud latches.
 S 414-011
 (4)  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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