(h)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 S 862-033
 (2)
Remove electrical power, if it is not necessary (Ref 24-22-00).

 S 412-034

 (3)  
Close the access door for the forward stabilizer compartment, 311AL (Ref 06-42-00).

 S 412-035

 (4)  
Close the access door for the elevator feel unit, 313AL (Ref 06-42-00).

 TASK 27-31-17-022-036
 4.  Remove the Feel Unit Roller Bearing___________________________________
 A. Equipment
 (1)  
Gage Assembly - B27039-3, Part of the Elevator
 and Stabilizer Rigging Equipment, B27039-1

 (2)  
Test Box, Elevator Control System Hardover - B27071-34, Preferred

 B.
References

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

 (2)  
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 Feel Unit

 D.
Prepare for the Removal

 S 012-037
 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.
 (1)  Open the access door for the forward stabilizer compartment, 311AL (Ref 06-42-00).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-31-17
 ALL  ú ú 02 Page 214 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 862-038
 WARNING:_______ KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
 HYDRAULIC POWER IS SUPPLIED.  AILERONS, ELEVATORS, RUDDER,
 FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED
 SURFACES.  INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR

 WHEN HYDRAULIC POWER IS SUPPLIED.
 (2)  
Pressurize the right and center hydraulic systems (Ref 29-11-00).

 S 862-039

 (3)  
Move the horizontal stabilizer until Dimension B on the stabilizer ballscrew actuator is 15.89 | 0.01 inches

 (403.6 +/- 0.25 mm) (Fig. 201).
 S 862-040
 (4)  
Remove the pressure from the right, left, and center hydraulic systems (Ref 29-11-00).

 S 862-041

 (5)  
Put the L, R, and C FLT CONTROL SHUTOFF switches on the right side panel, P61, to the OFF position.

 S 862-042

 (6)  
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, to the CUTOUT position.

 S 862-043

 (7)  
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:

 (a)  
AIRPLANES WITH ALTERNATE STAB TRIM SWITCHES ON THE CONTROL STAND; 11B19, STAB TRIM ALT

 (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

 (8)  
Open the access door for the feel unit, 313AL (Ref 06-42-00).

 S 012-044
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-31-17
 ALL  ú ú 02 Page 215 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 E. Remove the Feel Unit Roller Bearing (Fig. 205)
 S 022-045
 (1)  
Disconnect the clevis assembly from the housing assembly to relax the spring.

 S 022-046

 (2)  
Keep a record of the number and thickness of the washers, and save the washers.
　
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