(b)  
Remove the 9 o'clock strut fairing.

 S 036-004-C00
 (4)  Disconnect the VBV CLOSED and VBV OPEN tubes from the fuel gear motor (Fig. 601).
 (a)  
Loosen the outer nut.

 (b)  
Move the outer nut and sleeve back along the external tube.

 CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING
_______
 NUTS. IF YOU DO NOT USE TWO WRENCHES, YOU CAN CAUSE
 DAMAGE TO THE TUBES.

 (c)  
Disconnect the connecting nut of the internal tube from the
 nipple.
 1) Use a container to catch the fuel that falls.

 (d)  
Remove and discard the two O-rings from the sliding sleeve and fixed sleeve of the external sleeve.

 S 036-005-C00
 (5)  
Remove the two nipples from the OPEN and CLOSED ports of the fuel gear motor (Fig. 601).

 S 026-006-C00

 (6)  
Remove the two filter screens from the OPEN and CLOSED ports of the fuel gear motor with a 9/32 inch Allen wrench.

 S 216-007-C00

 (7)  
Examine the filters for contamination.

 (a)  If contamination is found, replace the fuel gear motor
 (AMM 75-32-02/401).

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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE  A 
HOUSING GEARBOX TRANSFER  OUTER RING EXTENSION  FAIRING STRUT 9 O'CLOCK  RING EXTENSION INNER  (26 LOCATIONS) SCREW INNER EXTENSION DUCT

APPLY SEALANT HERE
A  DRAIN TUBE GEAR MOTOR VBV FUEL  STRUT 6 O'CLOCK 
Bleed Valve Fuel Gear Motor Inspection Figure 601 (Sheet 1) 

C86192
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE C
SEE B BLEED VALVE FUEL GEAR MOTOR
BOLT (2 LOCATION)
B
DRAIN TUBE
A 
SEE  D 
VBV (OPEN END) FUEL SUPPLY  CENTERING PLATES  A  JUNCTION 
TUBE  PLATE 
VBV (CLOSED END) 
FUEL SUPPLY TUBE 
C  BLEED VALVE FUEL GEAR 
MOTOR  O-RING SEAL 

NIPPLE
CONNECTING NUT
O-RING
OUTER NUT
SLIDING
INTERNAL SLEEVE
TUBE LINE
EXTERNAL TUBE LINE FUEL LINE CONNECTED O-RING SEALS REMOVAL (EXAMPLE) A-A
S-M56-MM-0379-(1)-00-8
Bleed Valve Fuel Gear Motor Inspection
Figure 601 (Sheet 2)

C86184
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
O-RING
NIPPLE
B
FILTER SCREEN
B
FILTER SCREEN INSTALLATION
D
FILTER SCREEN
0.570-0.600 (14.48-15.24)
VBV GEAR
MOTOR HOUSING

B-B
S-M56-MM-00672-00-B
NOTE: DIMENSIONS ARE IN INCHES WITH MILLIMETTERS IN PARENTHESES.
Bleed Valve Fuel Gear Motor Inspection
Figure 601 (Sheet 3)

C86331
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