B.  Access
 (1)  Location Zone
 300 Horizontal Stabilizer

 C.  Procedure
 S 864-024
 WARNING: APPLY ELECTRICAL POWER TO OPEN THE STABILIZER TRIM SHUTOFF AND
_______ PREVENT HYDRAULIC OPERATION OF THE HORIZONTAL STABILIZER. IF ELECTRICAL POWER IS NOT AVAILABLE, ATTACH A PLACARD TO THE MANUAL CONTROL LEVERS FOR THE HORIZONTAL STABILIZER. ACCIDENTAL OPERATION OF THE HORIZONTAL STABILIZER CAN CAUSE INJURY T O PERSONS OR DAMAGE TO EQUIPMENT.
 (1) Connect the electrical power (Ref 24-22-00/201).
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MAINTENANCE MANUAL

LOWER SKIN PANEL A-A
Stabilizer-to-Fuselage Seal Installation Figure 401
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 S 864-003
 (2)  
Put the STAB TRIM NO. 2 and NO. 3 HYD switches on the control stand in the CUTOUT position.

 S 864-004

 (3)
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  P7 Overhead Circuit Breaker Panel.
 1) 7E7 STAB TRIM L S/O VALVE
 2) 7E20 STAB TRIM R S/O VALVE

 S 864-005
 (4)  
Remove the electrical power if it is not necessary (Ref 24-22-00/201).

 S 024-006

 (5)  
Remove the upper, leading edge, and lower seals.

 (a)  
Remove the sealant from the fasteners and skin clearances.

 (b)  
Remove the fasteners that attach the skin panel and leading edge cap to the structure.

 (c)  
Remove the seal from the seal support and the horizontal stabilizer.

 S 024-007
 (6)  Remove the vertical seal.
 (a)  
Remove the sealant from the fasteners and skin clearances.

 (b)  
Remove the fasteners that attach the skin panels to the structure.

 (c)  
Remove the screws that attach the vertical seal and seal retainer to the outrigger No. 3.

 TASK 55-10-03-404-008
 3.  Install the Seals (Fig. 401)_________________
 A. Consumable Materials
 (1)  
A00247 Sealant - BMS 5-95

 (2)  
A00957 Adhesive - BAC5010

 (3)  
C00048 Primer - RTV 1200

 B. References
 (1)  
24-22-00/201, Manual Control

 (2)  
51-31-01/201, Seals and Sealing

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MAINTENANCE MANUAL

 (3)  IPC 55-10-02 Fig. 1
 C. Access
 (1)  Location Zone
 300 Horizontal Stabilizer

 D. Procedure
 S 424-014
 (1)  Install the upper, leading edge, and lower seals.
 (a)  
Examine the nutplates and fasteners which attach the skin panels and leading edge cap to the ribs. 1) Replace the nuts or screws if it is necessary. 2) Attach the nutplates with rivets if the nutplates are

 loose.

 (b)  
Put the seal in the seal support.

 NOTE: Make sure the seal does not buckle or wrinkle.
____
 (c)  Adjust the upper and lower seals to keep a tight fit with the leading edge seal.
 S 344-015
 (2)  Bond the upper and lower seals to the leading edge seal.
 (a)  
Apply primer to all of the surfaces that will be bonded. Let the primer dry for 30 minutes (minimum) to 4 hours (maximum).
　
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