S 416-006-C00
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 75-31-01
 ALL  ú ú C01 Page 601 ú Nov 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A 
CAP END  SHROUD ROD END  SHROUD HEAD END 

VSV ACTUATOR 
TUBE DRAIN  FWD 
RIGHT VSV ACTUATOR 
1  LEFT SIDE SIMILAR RIGHT SIDE SHOWN,  A  1 
Varible Stator Vane (VSV) Actuator Inspection Figure 601 

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 75-31-01
 ALL  ú ú C01 Page 602 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
VARIABLE STATOR VANE FEEDBACK CABLE - REMOVAL/INSTALLATION
__________________________________________________________
 1.  General_______
 A.  This procedure contains two tasks. The first task is to remove the variable stator vane (VSV) feedback cable. The second task is to install the VSV feedback cable.
 B.  The cable is connected to the VSV feedback arm on the aft end of the main engine control (MEC).
 C.  It goes up through the forward part of the 6 o'clock strut area and
 connects to the left VSV bellcrank lever arm at the 7:30 o'clock
 position.

 TASK 75-31-02-004-001-C00
 2.  Remove the Variable Stator Vane (VSV) Feedback Cable____________________________________________________
 A.  References
 (1)  AMM 78-31-00/201, Thrust Reverser
 B.  Access
 (1)  
Location Zones 506 Engine No. 1 - attached to the forward stator case of the HPC at the 1:30 and 7:30 o'clock positions

 606  Engine No. 2 - attached to the forward stator case of the HPC at the 1:30 and 7:30 positions

 (2)  
Access Panels
 5739L/5783L Engine No. 1 - Thrust Reverser Half
 5839R/5838R Engine No. 2 - Thrust Reverser Half

 C.  Procedure (Fig. 401)
 S 014-055-C00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSER. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (1)  
Open the thrust reverser halves (AMM 78-31-00/201).

 S 034-003-C00

 (2)  
Disconnect the end of the VSV feedback cable from the lever arm of the VSV bellcrank assembly.

 (a)  
The VSV bellcrank assembly is found on the forward case of the high pressure compressor (HPC) at the 7:30 o'clock position.

 (b)  
Remove the cotter pin from the nut.
 1) Discard the cotter pin.

 (c)  
Remove the bolt, nut and washer.

 S 034-004-C00
 (3)  Move the inner part of the cable to the fully retracted position at the compressor bellcrank end.
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 75-31-02
 ALL  ú ú C02 Page 401 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
BELLCRANK
LEVER ARM

SEEA  SEEB
WASHER BOLT
VSV ACTUATOR MOUNTING
NUT VSV FEEDBACK BRACKET CABLE ROD END BEARINGCOTTER PIN BELLCRANK VSV
LEVER ARM FEEDBACK CABLE
B
SEE C
WASHER BOLT
NUT
VSV FEEDBACK
CABLE ROD END
BEARING

COTTER PIN
MEC
FEEDBACK ARM SEE D

C
MAIN ENGINE CONTROL (MEC)
MEC SLOTTED
FEEDBACK  A BRACKET
ARM NOSE CAP
ROD END BEARING  CONDUIT CAP
SUPPORT TUBE
JAM NUT
　
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