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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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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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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