NOTE: The same washers and dimensions must be used to install the
____
clevis assembly.
S 022-047
(3)
Remove the springs and clevises.
S 022-048
(4)
Disconnect the control rods for the neutral shift mechanism from the feel unit (2 locations).
S 022-049
(5)
Remove the two springs from the bracket assembly.
S 022-050
(6)
Remove the bracket assembly.
S 022-051
(7)
Carefully rotate and hold the feel unit until you can get access to the roller bearing.
S 022-052
(8)
Remove the roller bearing from the arm assembly.
TASK 27-31-17-402-053
5. Install the Feel Unit Roller Bearing
____________________________________
A. Consumable Materials
(1)
D00153 Fluid - Hydraulic BMS 3-11
B.
References
(1)
06-42-00/201, Empennage Access Doors and Panels
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A
757 MAINTENANCE MANUAL
(2)
FIM 22-00-04/101, Autoflight BITE MCDP Ground Tests - Support
(3)
27-31-00/501, Elevator Control System
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.
Install the Feel Unit Roller Bearing
S 422-054
(1)
Install the bolt, washer, and nuts that attach the roller bearing to the arm assembly.
(a)
Tighten the nuts as follow: 1) Tighten the inner nut to 85 - 100 pound-inches
(9.6-11.3 newton-meters). 2) Tighten the outer nut to 30 - 35 pound-inches (133-155 Nm)
NOTE: Do not change the torque value for the inner nut.
____
S 422-055
(2)
Install the bracket assembly.
S 422-056
(3)
Install the two springs to the bracket assembly.
S 422-057
(4)
Install the nuts, washers and bolts to connect the control rods on the neutral shift mechanism to the feel unit.
NOTE: If the adjustment rod is not in tolerance limits, you must do
____ the adjustment for the adjustable rods (AMM 27-31-00/501).
S 422-058
(5)
Install the bolts, washers, and nuts to connect the springs and clevis to the housing assembly.
(a)
Tighten the nuts as follows: 1) Tighten the inner nut to 85 - 100 pound-inches (9.6-11.3 Nm).
2) Tighten the outer nut to 30 - 35 pound-inches (3.38-3.95 Newton-meters).
NOTE: Do not change the torque value for the inner nut.
____
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MAINTENANCE MANUAL
S 862-059
(6) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the
overhead panel, P11:
(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
S 732-060
(7) Do the Control Column Breakout Test in the Elevator Control System -
System Test (AMM 27-31-00/501).
S 732-061
(8) Do these steps to check for elevator feel system forces:
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