(2)  
21-00-00/201, Air Conditioning

 B. Access
 (1)  
Location Zones
 212 Left Air Conditioning Equipment Bay
 214 Right Air Conditioning Equipment Bay

 (2)  
Access Panels
 3304 Left A/C Access Door
 3404 Right A/C Access Door

 C. Install the Turbofan
 S 424-007
 (1)  Do the steps that follow to install the turbofan:
 (a)  
Make sure the forward V-clamp is on the ram air duct.

 (b)  
Put the turbofan into the correct position.

 (c)  
Install the inboard mounting bolt.

 (d)  
Turn the turbofan up.

 (e)  
Install the outboard mounting bolt.

 (f)  
Make sure the turbofan is aligned correctly with the edge of the duct.

 (g)  
If the turbofan is not aligned correctly, do this step: 1) Adjust the rods if it is necessary.

 (h)  
Install the V-clamp.

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A

737-300/400/500
MAINTENANCE MANUAL

SEE B
SEE  A 
OUTBOARD 
MOUNTING BOLT 
ADJUSTABLE ROD 
FWD 
CLAMP 
A 
TURBINE AIR DUCT 
CLAMP 
V-CLAMP  ELBOW  ADJUSTABLE ROD 
TURBOFAN  TURBOFAN 
INBOARD 
SEE  C DIP STICK  MOUNTING 
BOLT 
FLEXIBLE DUCT 
FWD 
INBD  B 
DRAIN PLUG 
FLEXIBLE DUCT 
FWD 
C 
Turbofan Installation 
Figure 401 

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737-300/400/500MAINTENANCE MANUAL
 (i)  
Make sure the clamps are attached loosely on the turbofan and the elbow.

 (j)  
Install the flexible duct.

 (k)  
Put the clamps in their positions on the flexible duct.

 (l)  
Tighten the clamps.

 (m)  
Install the turbine air duct.

 D. Put the Airplane Back to Its Usual Condition
 S 614-010
 (1)  
Fill the turbofan with oil (Ref 12-13-61/301).

 S 794-008

 (2)  
Do these steps to do a check for leaks in the air conditioning system:

 (a)  
Start the air conditioning system (Ref 21-00-00/201).

 (b)  
Do a check for leaks at all joints and clamps.

 (c)  
Stop the air conditioning system (Ref 21-00-00/201).

 (3)  
Close the applicable A/C access panel 3304 or 3404.

 S 414-009
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 TURBOFAN VALVE - REMOVAL/INSTALLATION
_____________________________________
 1.  General
_______
 A.  The air conditioning access panel will be referred to as the A/C access panel.
 TASK 21-52-71-004-006
 2.  Remove the Turbofan Valve
_________________________
 ú A.  References
 ú  (1) AMM 36-05-00/201, Pneumatic System (Pressurize/Depressurize)
 B.  Access
 (1)  
Location Zones
 212 Left Air Conditioning Equipment Bay
 214 Right Air Conditioning Equipment Bay

 (2)  
Access Panels
 3304 Left A/C Access Door
　
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