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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
SEE F
SEE E
SEE  D 
SEE  A 
SEE  C 

BOLT, WASHER, AND NUT (4 LOCATIONS)
SEE B  MAIN SHROUD
GASKET SEAL FLEXIBLE1 SHROUD
BELLOWS 1 MAIN SHROUD FLANGE
COUPLING NUT  FLEXIBLE FUEL LINE DRAINBOLT, WASHER, AND LINENUT (4 LOCATIONS) FLEXIBLE SHROUD
CENTER TANK
FLANGE
FITTING GASKET SEAL
TOP SKIN OF THE CENTER WING SECTION
A1 SHROUD 2 FWD
FLEX FITTING APU FUEL LINE
SNAP RINGCENTER TANK O-RING
FITTING COUPLING NUT
DRAIN LINE
TOP SKIN OF THE WING CENTER SECTION
A2
1
FUEL LINE SHROUD WITH BELLOWS
2
FUEL LINE SHROUD WITHOUT BELLOWS
APU Fuel Feed Line Shroud Installation Figure 401 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
NUT
SPACER
SUPPORT BRACKET
WASHER
SHROUD 
WASHER  SUPPORT 
PRESSURE  CLAMP 
BULKHEAD  BOLT 
(EXAMPLE) 
FWD 
O-RING  B 

FLEXIBLE
FUEL LINEMAIN SHROUD APU SHROUD (SECTION 1)
MOUNTING BOLTS AND WASHERS
SEALING BOLT, WASHERSEALING GASKET AND NUT
GASKET SLIP JOINT AFT SHROUD (SECTION 2)
FWD  C
SHROUD CLAMP CLAMP SHROUD FLEXIBLE
BOLT, WASHER SHROUD
SHROUD CLAMP AND NUT
HOSE CLAMP BONDING JUMPER AFT SHROUD (SECTION 1)
ACCESS DOOR, 3701, FOR THE STABILIZER FLEXIBLETRIMFWD FUEL LINE
D
APU Fuel Feed Line Shroud Installation Figure 401 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

BONDING JUMPER
BOLT, WASHER AND NUT
BOLT
HOSE SHROUD CLAMP CLAMP
WASHER
APU FUEL LINE (THE PART IN THE NUT APU COMPARTMENT)
COUPLING
APU FUEL FLEXIBLE SHROUD
LINE SHROUD
HOSE CLAMP
SPACER
FLEXIBLEFUEL LINE
FWD
AFT SHROUD 
INSTALLATION FOR THE  (SECTION 2) 
APU FUEL FILTER 
E  SHROUD 
CLAMP 
TOP FUEL 
LINE SHROUD 

FUEL LINE COUPLING
ADAPTER FOR THE APU SHROUD
SEALING GASKET
SEALING GASKET
MOUNTING
BOLT
APU FUEL LINE (THE PART IN THE FWD
APU COMPARTMENT)
FUEL
LINE
SHROUD
F
APU Fuel Feed Line Shroud Installation
Figure 401 (Sheet 3)

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A 737-300/400/500MAINTENANCE MANUAL
 (3)  S 434-042Put the main shroud into the slip joint on the pressure bulkhead (View C, Fig. 401).
 (4)  S 434-010Attach the flexible shroud to the main shroud (View A, Fig. 401). (a) Tighten the bolts that attach the main shroud to a torque of 180 pound-inches.
 (5)  S 434-043Install the first clamp for the main shroud. (a) Turn the main shroud until the flexible shroud is aligned with the interconnect fitting. (b) Move the rings that hold the main shroud in the correct position at the first shroud clamp to the aft end of the flexible shroud. (c) Install the clamp.
　
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