(d)  
Install the parts.

 S 426-003
 (3)  Do this task: "Elevator Output Torque Tube Installation"
 (Ref 27-31-74/401).

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A
737-300/400/500MAINTENANCE MANUAL
 ELEVATOR INDEX PLATES - REMOVAL/INSTALLATION
____________________________________________
 1.  General_______
 A.  This procedure has two tasks, one for the removal and one for the installation of the elevator index plates. The procedure has these parts:
 (1)
The removal of the elevator index plate

 (2)
The installation of the elevator index plate

 (3)
An adjustment of the elevator index plate.

 B.  
The removal and installation procedure is the same for the left or the right index plate.

 C.  
You must do this procedure when the tail cone is removed and the
 replacement is a new or different tail cone.

 TASK 27-31-81-004-001
 2.  Elevator Index Plates Removal_____________________________
 A.  References
 (1)
53-53-00/401, Tail Cone

 B.  
Access

 (1)  
Location Zone
 704 Tail Cone
 711 Elevator and Tab, LH
 712 Elevator and Tab, RH

 (2)  
Access Panels
 3701 Stabilizer Trim Access Door
 3801 Tail Cone Access Door, LH
 3802 Tail Cone Access Door, RH

 C.  
Procedure

 (1)
Remove the tail cone from the airplane (Ref 53-53-00/401).

 S 024-003

 (2)
Remove the elevator index plates (Fig. 403):

 (a)
Remove the two nuts, washers, and screws from each index plate.

 S 434-002
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737-300/400/500MAINTENANCE MANUAL
 (b) Remove the index plates from the tail cone.
 TASK 27-31-81-404-004
 3.  Elevator Index Plates Installation__________________________________
 A. Special Tools and Equipment
 (1)
F80055-1 - Trammel Bar

 (2)
F80230-1 - Elevator Index Plate Rigging Beam

 B.
Standard Tools and Equipment

 (1)
Drill bits - 0.187/0.190 - 0.263/0.266

 (2)
Drill centering guide

 C.
References

 (1)
27-31-00/201, Elevator and Tab Control System

 (2)
27-31-00/501, Elevator and Tab Control System

 (3)
53-53-00/401, Tail Cone

 D.
Access

 (1)  
Location Zone
 704 Tail Cone
 711 Elevator and Tab, LH
 712 Elevator and Tab, RH

 (2)  
Access Panels
 3701 Stabilizer Trim Access Door
 3801 Tail Cone Access Door, LH
 3802 Tail Cone Access Door, RH

 E.
Procedure

 (1)
Install the replacement tail cone (Ref 53-53-00/401).

 (2)
Open the access door 3701.

 (3)
Remove the access panel 3802.

 S 864-007

 (4)
Use the trammel bar to set the horizontal stabilizer B dimension at

 S 434-019
 S 014-006
 S 014-005
 41.57 |0.01 inches (Fig. 401).
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A 737-300/400/500MAINTENANCE MANUAL
 (5)  S 864-008Set the mach trim actuator at the null position (Ref 27-31-00/201).
　
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