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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
UPPER SHROUD  THE SHUTOFF VALVE PNEUMATIC LINE FOR CLAMP  JUMPER BONDING ENGINE MOUNT) (TO APU  ASSEMBLY BEAM FOR THE APU UPPER SHROUD BOLT 
PNEUMATIC LINE FILTER FOR THE SHUTOFF VALVE  NUT  BONDING JUMPER STRUCTURE) (TO THE AIRPLANE 
FWD  B  BLEED AIR LINE  BLEED AIR DUCT CHECK VALVE FOR THE FUEL SENSING FLOW CONTROL  (4 LOCATIONS) WASHER  INSTALLATION BONDING JUMPER C INBD 
(2 LOCATIONS) WASHER 
NUT 
UPPER SHROUD  FWD 
CLAMP 
BONDING JUMPER  SHROUD FUEL LINE
SCREW (6 LOCATIONS)  SCREW 
BONDING JUMPER INSTALLATION D 
Upper Shroud Installation Figure 401 (Sheet 2) 

E55221
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////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////
APU 
COMPARTMENT 
STRUCTURE 
SEE  E  AIRPLANE 
MOUNTING 
AIRPLANE  BRACKET 
MOUNTING 
BRACKET  RING MOUNT 
STRUT 
SEE  F  (VERTICAL) 

SEE G RING MOUNT
RING MOUNT
STRUT (AXIAL)
AIRPLANE
MOUNTING UPPER
BRACKET SHROUD
SEE I
SEE H RING MOUNT
E
STRUT (LATERAL)
APU COMPARTMENT STRUCTURE
AIRPLANE MOUNTING
RIGHT AFT MOUNT
BRACKET
F
RING MOUNT STRUT (VERTICAL)
AIRPLANERING MOUNT MOUNTING
BRACKET
RING MOUNT
STRUT
(LATERAL)
FWD UPPER SHROUD BONDING JUMPER
SEE C
RIGHT FORWARD MOUNT
G
Upper Shroud Installation Figure 401 (Sheet 3)
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MOUNTING AIRPLANE BRACKET APU COMPARTMENT STRUCTURE 
RING MOUNT STRUT (VERTICAL) 
RING MOUNT 
SHROUD UPPER 
FWD 
LEFT FORWARD MOUNT H 
MOUNTING AIRPLANE BRACKET 
RING MOUNT RING MOUNT STRUT (VERTICAL)  STRUT (AXIAL) RING MOUNT 
SHROUD UPPER  FWD 
I LEFT AFT MOUNT 
Figure 401 (Sheet 4) Upper Shroud Installation 

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////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
S 034-006
 (3)  
Remove the APU power plant (AMM 49-11-00/401).

 S 014-016

 (4)  
Open the access door, 3701, for the stabilizer trim.

 S 034-043

 (5)  
Disconnect the pressure line:

 (a)  Disconnect the pressure line to the pneumatic actuator for the shutoff valve for the cooling air.
 NOTE: To get to the pressure line, go through the access door
____
 for the stabilizer trim.

 (b)  
Install a cap on the pressure line.

 (c)  
Install a plug on the pneumatic actuator.

 S 034-008
 (6)  In the APU compartment, disconnect the electrical receptacles from the upper shroud:
 (a)  
AIRPLANES WITH THE ETC; Disconnect the receptacle for the ETC, D10140, from the fitting on the upper shroud.

 (b)  
Disconnect the receptacle for the APU harness, D452, from the fitting on the upper shroud.

 (c)  
Disconnect the receptacle for the starter motor, D4802J, from the fitting on the upper shroud.
　
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