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 CAUTION: KEEP A MINIMUM CLEARANCE OF 0.18 INCHES (5 MM) BETWEEN THE
_______ ENGINE, FIRE DETECTOR, CLAMPS AND LOWER SHROUD.
 BE CAREFUL WHEN YOU MOVE THE LOWER SHROUD. DAMAGE TO THE SHROUD DRAIN LINES CAN OCCUR.
 (11) Install the lower shroud:
 (a)  
Hold the lower shroud against the upper shroud.

 (b)  
Close the shroud latches.

 S 414-020-002
 (12) Close the APU cowl door:
 (a)  
Disconnect the door support rods.

 (b)  
Put the door support rods in the clips on the APU cowl door.

 (c)  
Close the APU cowl door.

 (d)  
Close the latches for the APU cowl door.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE TAFCU ú

 49-31-11
 ú CONFIG 2 ú 01 Page 406 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 864-021-002
 (13) Remove the DO-NOT-OPERATE tag from the APU master switch on the P5 forward overhead panel.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE TAFCU ú

 49-31-11
 ú CONFIG 2 ú 01 Page 407 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL CONTROL UNIT GEAR SHAFT SEAL - REMOVAL/INSTALLATION
________________________________________________________
 1.  General
_______
 A.  This procedure gives the tasks to remove and to install the gear shaft seal on the fuel control unit.
 B.  You must remove the fuel control unit to replace the seal.
 C.  The fuel control unit is on the forward left side of the APU engine. You can get access to the APU through the APU cowl door.
 TASK 49-31-12-004-001
 2.  Fuel Control Unit Gear Shaft Seal Removal (Fig. 401)
_________________________________________
 A.  References
 (1)  AMM 49-31-11/401, Fuel Control Unit
 B.  Access
 (1)  
Location Zones
 703 APU Compartment

 (2)  
Access Panels
 3804 APU Cowl Door

 

 C.  Procedure
 S 014-002
 (1)  
Remove the fuel control unit (AMM 49-31-11/401).

 S 024-003

 (2)  
Remove the gear shaft seal:

 (a)  
Remove the retainer from the accessory drive housing. 1) Discard the packing.

 (b)  
Remove the snap ring and the seal from the retainer. 1) Discard the seal.

 

 TASK 49-31-12-404-006
 3.  Fuel Control Unit Gear Shaft Seal Installation (Fig. 401)
______________________________________________
 A.  References
 (1)  AMM 49-31-11/401, Fuel Control Unit
 B.  Access
 (1)  Location Zones
 703 APU Compartment

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-31-12
 ALL  ú ú 01 Page 401 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////
GEAR SHAFT SEAL FOR THE FUEL CONTROL UNIT
SEE B
SEE A
HOUSING ASSEMBLY
A
SEAL
SNAP RING
GEAR SHAFT
RETAINER
FWD
A-A A
PACKING  ACCESSORY DRIVE HOUSING
RETAINER
A
SEAL
SNAP RING
B

Fuel Control Unit Gear Shaft Seal Installation Figure 401
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 49-31-12
 ALL  ú ú 02 Page 402 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
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