Turbine Exhaust Plug Installation
Figure 401

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 044-004-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (5)  
Do this task: "Thrust Reverser Deactivation for Ground Maintenance" (AMM 78-31-00/201).

 S 014-005-N00

 (6)  
Remove the turbine exhaust sleeve (AMM 78-11-01/401).

 S 024-018-N00

 (7)  
Remove the turbine exhaust plug.

 (a)  
Remove the bolts (3) and the washers (4) from the lower half of the plug (2).

 CAUTION:_______MAKE SURE TO HOLD THE WEIGHT OF THE EXHAUST PLUG. DAMAGE COULD OCCUR IF THE PLUG FALLS.

 (b)  
Hold the plug and remove the remaining bolts (3) and the washers (4).

 (c)  
Move the plug (2) aft and remove it from the engine.

 TASK 78-11-02-404-009-N00
 3. Turbine Exhaust Plug Installation (Fig. 401)
_________________________________
 A. Consumable Materials
 (1)
Antiseize Compound - Bostik Never-seize Pure Nickel Special.

 B.
Parts

 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 2 | Exhaust Plug | 78-11-01 | 01 | 90 | | | 3 | Bolt | | | 95 | | | 4 | Washer | | | 100 | 2.....….........…...................................…..........…......…........1
 C. References
 (1)  
AMM 27-62-00/201, Speed Brake Control System

 (2)  
AMM 78-11-01/401, Turbine Exhaust Sleeve

 (3)  
AMM 78-31-00/201, Thrust Reverser System

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
D. Access
 (1)  
Location Zone
 419 Engine 1 - Exhaust Sleeve
 429 Engine 2 - Exhaust Sleeve
 439 Engine 3 - Exhaust Sleeve
 449 Engine 4 - Exhaust Sleeve

 E.
Procedure

 S 424-019-N00
 (1)  Install the turbine exhaust plug.
 (a)  
Set the plug (2) on the engine flange.

 (b)  
Lubricate threads and shank of bolts (3) with anti-seize compound and install the top washers (4) and the top bolts (3). 1) Tighten the bolts with your hands.

 (c)  
Lubricate threads and shank of bolts (3) with anti-seize compound and install the top washers (4) and the top bolts (3). 1) Tighten the bolts with your hands.

 (d)  
Tighten all of the bolts (3) to the correct torque as follows: 1) Tighten the dry bolt to 85-95 pound-inches (9.6-10.7 N.m). 2) Tighten the lubricated bolt to 65-75 pound-inches (7.3-8.5

 N.m).
 S 414-013-N00
 (2)  
Install the turbine exhaust sleeve (AMM 78-11-01/401).

 S 444-014-N00

 (3)  
Do this task: "Thrust Reverser Activation Following Ground
 Maintenance" (AMM 78-31-00/201).

 S 444-015-N00

 (4)  
Do this task: "Automatic Speed Brake System Activation"
 (AMM 27-62-00/201).

 (5)  
Remove the DO-NOT-OPERATE tags from the thrust levers.

 S 034-016-N00
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