24-21-71
 APU GENERATOR FEEDER CABLES  ú ú 03 Page 403 ú Mar 15/91
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A

737-300/400/500
MAINTENANCE MANUAL

APU GENERATOR
SEE B
GENERATOR AC GENERATOR TERMINALS
B1
GROUND BUS
B2
BAR ANGLE
B3
CURRENT TRANSFORMER T2
GROUND
LEAD
CURRENT TRANSFORMER CONNECTOR
NOTE:  COOLING AIR CROSSOVER
B
DUCT OMITTED.
Current Transformer Component Location Figure 401 (Sheet 3)
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 24-21-71
 GENERATOR FEEDER CABLES  ú ú 03 Page 404 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

CURRENT  CURRENT  CURRENT 
TRANSFORMER  TRANSFORMER  TRANSFORMER 
T7  T9  T8 

ABOVE RIGHT FORWARD CEILING NOSE W/W ELECTRONIC COMPARTMENT STA 285, RBL 50

CURRENT CURRENT TRANSFORMER TRANSFORMER T5 T4
P6-12 AND P6-11 SEE C
C
FLIGHT COMPARTMENT LOOKING AFT
Current Transformer Component Location Figure 401 (Sheet 4)
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 ALL  ú ú 02 Page 405 ú Mar 15/91
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737-300/400/500MAINTENANCE MANUAL
 (b)  For T2, remove the APU lower shroud: 1) Open the latches for the APU cowl door. 2) Open the APU cowl door. 3) Connect the door support rods.
 CAUTION:_______BE CAREFUL WHEN YOU MOVE THE LOWER SHROUD. DAMAGE TO THE SHROUD DRAIN LINES CAN OCCUR.
 4) Hold the lower shroud and open the shroud latches. 5) Remove the lower shroud.
 (c)  
For T4, loosen the two screws on the inboard edge of panel P6-11 and move the panel forward.

 (d)  
For T5, loosen the two screws on the inboard edge of panel P6-12 and move the panel forward.

 (e)  
For T7, T8, or T9, get access to the electronic compartment through the access door on the right forward ceiling of the nose wheel well.

 S 034-005
 (3)
Disconnect the electrical connector from the current transformer.

 S 034-008

 (4)  
Remove the wires that go through the current transformer:

 (a)  
Put an identification tag on each wire with this data: 1) The name and equipment number of the component where you will remove the wire 2) The terminal on the component where you will remove the wire

 3)  The hole in the current transformer where the wire goes (left, right, or center).

 (b)  
Remove the wires from the component that they attach to.

 (c)  
Remove the wires from the current transformer.

 S 024-016
 (5)  Remove the current transformer.
 (a)  
Remove the mounting fasteners from the current transformer.

 (b)  
Remove the current transformer.

 TASK 24-21-71-404-015
 3.  Current Transformer Installation (Fig. 401)________________________________
 A.  References
 (1)  
24-21-00/501, AC Generation

 (2)  
71-11-02/201, Fan Cowl Panels

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 ALL  ú ú 03 Page 406 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 B. Access
 (1)  
Location Zone
 102 Control Cabin - Right
 205 Electronic Compartment
 502 LH Fan Cowl, Left Nacelle
 602 LH Fan Cowl, Right Nacelle
 703 APU Compartment

 (2)  
Access Panel
 1201L Electronic Equipment Access Door
　
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