S 864-035
 (5)  Set the circuit breaker and the switch:
 (a)  
Remove the DO-NOT-CLOSE tag and close this circuit breaker: 1) E3-3 Electrical Shelf, APU Control Unit

 (b)  
Remove the DO-NOT-OPERATE tag from the APU master switch on the P5 forward overhead panel.

 S 734-036
 (6) Do a test of the APU fire detection system (AMM 26-15-00/501).
 TASK 49-81-31-404-037
 5.  Aft Fairing Assembly Installation (With the APU Removed) (Fig. 401)_________________________________
 A.  Special Tools and Equipment
 (1)  F80207-1 Equipment - APU Heat Shield Installation/Removal; composed of the following:
 (a)  
F80207-13 Assembly - Flange (2 necessary)

 (b)  
F80207-12 Assembly - Flange Retainer (2 necessary)

 (c)  
F80207-2 Assembly - Reaction Plate

 (d)  
F80207-46 Stud - Threaded (10 necessary)

 (e)  
F80207-47 Nut - Lock (10 necessary)

 (f)  
F80207-6 Assembly - Puller Plate

 (g)  
F80207-10 Assembly - Rod Extension

 (h)  
F80207-9 Assembly - Pressure Pad

 (i)  
F80207-11 Rod - Take-Up

 (j)  
F80207-38 Lockpin - Pressure Pad Assembly Ball

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-81-31
 ALL  ú ú 02 Page 411 ú Nov 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
B. Consumable Materials
 (1)  
A00429 Sealant - BMS 5-63

 (2)  
D00237 Compound - Antiseize, MIL-T-5544

 C. References
 (1)  
AMM 26-15-00/501, APU Fire Detection

 (2)  
AMM 49-11-00/401, APU Power Plant

 (3)  
AMM 49-81-11/401, Exhaust Duct Muffler

 D. Access
 (1)  
Location Zones
 101 Control Cabin, LH
 205 Electronic Compartment
 703 APU Compartment
 704 Tail Cone

 (2)  
Access Panels
 1201 Electronic Equipment Access Door
 3801 Tail Cone Access Door
 3802 Tail Cone Access Door
 3803 APU Exhaust Duct
 3804 APU Cowl Door

 E. Procedure
 S 434-039
 (1)  Install the exhaust duct muffler into the heat shield
 (AMM 49-81-11/401):

 S 424-035
 CAUTION: INSTALL THE AFT FAIRING ASSEMBLY SLOWLY WHILE IT GOES THROUGH
_______ THE AIRPLANE TAIL CONE. MAKE SURE THE FIRE DETECTION ELEMENTS DO NOT HIT THE AIRPLANE STRUCTURE. THE FIRE DETECTION ELEMENTS CAN BE DAMAGED.
 (2)  
Put the aft fairing assembly on the airplane tail cone.

 S 494-041

 (3)  
Install the special tools and equipment (Fig. 402):

 (a)  
Install the flange assembly and the reaction plate assembly (Ref par. 3).

 (b)  
Assemble the take-up rod and the rod extension assembly.

 (c)  
Install the take-up rod in the reaction plate assembly.

 (d)  
Install the rod handle which is kept with the reaction plate.

 (e)  
Put the puller plate assembly into the exhaust pipe so that it is against the exhaust duct muffler. The puller plate assembly must also be on the end of the rod extension assembly.

 (f)  
Install the puller plate assembly to the rod extension with the pressure pad assembly and the ball lockpin.

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 49-81-31
 ALL  ú ú 01 Page 412 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 424-042
 (4)  Install the aft fairing assembly: (a) Align the aft fairing assembly with the shroud bellmouth. (b) Turn the take-up rod until the aft fairing assembly engages with the shroud bellmouth. The aft fairing assembly must be tight against the airplane tail cone. (c) Install and tighten the screws that attach the aft fairing to the airplane tail cone (Fig. 401).
　
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