757 MAINTENANCE MANUAL
 F. Put the Airplane Back to Its Usual Condition
 S 864-041
 (1)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:

 (a)  
11B19, STAB TRIM CONT ALT (IF INSTALLED)

 (b)  
11C12, STAB TRIM SHUTOFF LEFT

 (c)  
11C13, STAB TRIM SHUTOFF RIGHT

 (d)  
11H11 or 11C05, STAB TRIM CONT L

 (e)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 (f)  
11H18, FLT CONT SHUTOFF TAIL CTR

 (g)  
11H20, STAB TRIM CONT R

 (h)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 S 214-042
 (2)  
Make sure the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, are at the NORM position.

 S 214-043

 (3)  
Make sure the L, R and C FLT CONTROL SHUTOFF switches on the right side panel, P61, are at the ON position.

 S 864-044

 (4)
Remove electrical power if it is not necessary (Ref 24-22-00).

 S 414-045

 (5)  
Close the access door for the forward stabilizer compartment, 311AL (Ref 06-42-00).

 (6)
Close the access door for the aft quadrants, 313AL (Ref 06-42-00).

 S 414-046
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A

757
MAINTENANCE MANUAL

 ELEVATOR CONTROL AFT MECHANISM TORQUE BOX - REMOVAL/INSTALLATION
________________________________________________________________
 1.  General
_______
 A.  This procedure contains steps to remove and install the torque box for the aft mechanism of the elevator control system.
 TASK 27-31-16-024-001
 2.  Remove the Torque Box
_____________________
 A.  Equipment
 (1)  
Gage Assembly - B27039-3, Part of the Elevator
 and Stabilizer Rigging Equipment, B27039-1

 B.  
References

 (1)  
06-42-00/201, Empennage Access Doors and Panels

 (2)  
22-12-01/401, Autopilot Pitch Control Servo

 (3)  
24-22-00/201, Electrical Power - Control

 (4)  
27-00-01/201, Flight Control Cables

 (5)  
27-31-15/401, Elevator Aft Quadrants

 (6)  
27-31-17/201, Elevator Feel Unit

 (7)  
27-31-21/401, Neutral Shift and Override Mechanism

 (8)  
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 C.  
Access

 (1)  
Location Zones 211/212 Control Cabin 311/312 Area Aft of Pressure Bulkhead to BS 1787.45 313/314 Stabilizer Center Section Compartment

 (2)  
Access Panels
 311AL Forward Stabilizer Compartment
 313AL Elevator Aft Quadrants

 D.  
Prepare for the Removal (Fig. 401)

 S 864-002
 (1)  Supply electrical power (Ref 24-22-00).
 S 014-003
 WARNING: STAY OFF THE SERVICE ACCESS DOOR, 311AL AND THE ELEVATOR
_______ CONTROL ACCESS DOOR, 313AL. YOUR WEIGHT CAN RELEASE THE SPRING-LOADED LATCHES ON THE DOOR. IF YOU FALL THROUGH THE DOOR, INJURIES CAN OCCUR.
 (2)  
Open the access door for the forward stabilizer compartment, 311AL (Ref 06-42-00).

 S 014-004

 (3)  
Open the access door for the aft quadrants, 313AL, and remove the auxiliary access panel (Ref 06-42-00).

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A

757
MAINTENANCE MANUAL

15.89 |0.01 INCHES (403.60 |0.25 mm), DO THE STEPS THAT FOLLOW:
1.
 PUT THE GAGE ASSEMBLY AGAINST THE BALLSCREW SO THAT THE BOLT HEADS ARE ON THE SHOULDERS OF THE UPPER AND LOWER STOPS
　
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