C.
Procedure

 S 014-014
 (1)  
Get access to the BIT module (AMM 71-11-02/201).

 S 024-015

 (2)  
Remove the screws from the instruction plate to get to the connector.

 S 024-016

 (3)  
Remove the screws from the top of the BIT module.

 S 024-017

 (4)  
Loosen the jackscrews with 5/64 allen wrench.

 NOTE: Loosen the jackscrews evenly.
____
 S 024-018
 (5)  Disconnect the connector and remove the BIT module.
 TASK 24-11-71-404-013
 3.  VSCF BIT Module Installation (Fig 401)____________________________
 A. Access
 (1)  
Location Zone
 504 Engine No. 1, LH
 604 Engine No. 2, LH

 (2)  
Access Panel
 5738L Thrust Reverser Cowl Assembly
 5739L Thrust Reverser Cowl Assembly

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 VARIABLE SPEED CONSTANT FREQUENCY  ú 24-11-71
 -15 AND -16 GENERATOR/CONVERTER AND  ú
 SUBSEQUENT  ú 01 Page 401 ú Mar 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
BIT MODULE SEE A
VSCF GENERATOR/CONVERTOR
BIT MODULE
SCREWS (9 LOCATIONS)
INSTRUCTION PLATE
CONNECTOR
A
VSCF Generator/Converter Display Module Installation Figure 401 (Sheet 1)
B03428
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH -15 THROUGH -20 VSCF ú

 24-11-71
 ú ú 01 Page 402 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
POWER AND NEUTRAL TERMINALS
EXCITATION LEADS
COOLING 
AIR 
INLET 
SCREWS 
(10 LOCATIONS)  COOLING 
AIR 
EXHAUST 
WASHER 

(10 LOCATIONS)
DISPLAY MODULE
SEE C
CONNECTOR
B
CURRENT TRANSFORMER LEADS
MAIN CONNECTOR
SEE B
CASE
PRESSURE-FILL
VALVE
INPUT SHAFT
LOCK WIRE 
OVERFILL 
DRAIN 
FITTING 
SIGHT GLASS 
SPLINE CAVITY 
PRESSURE-FILL 
CASE  VALVE 
DRAIN  INSTRUCTION 
PLUG  PLATE  IDENTIFICATION 
VSCF  OIL OUT  PLATE 

GENERATOR/ PORT
CONVERTER
VSCF GENERATOR/CONVERTOR
SWITCHES
DISPLAY MODULE DISCONNECT RESET
SELF-TEST FLIGHT MESSAGES LAST VSCF FAULT SYS FAULT RESET LAST SYS FAULT
SINCE RESET
S2S1
INSTRUCTION 
PLATE  LIGHTS 
DISPLAY MODULE 
C 

VSCF Generator/Converter Display Module Installations
Figure 401 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH -23 AND -24 VSCF ú

 24-11-71
 ú ú 02 Page 403 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
L30448
A
737-300/400/500MAINTENANCE MANUAL
 B. Procedure
 S 424-019
 (1)  
Connect the connector and install the BIT module.

 S 424-020

 (2)  
Tighten the jackscrews until it is tight.

 NOTE: Tighten the jackscrews evenly.
____
 S 424-021
 (3)  
Tighten the other screws 7 to 9 pound-inches.

 S 424-022

 (4)  
Install the instruction plate and tighten the screws 7 to 9 pound-inches.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
 VARIABLE SPEED CONSTANT FREQUENCY  ú 24-11-71
　
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