E.
Access
(1)
Location Zones
311 Aft of Pressure Bulkhead to BS 1787.45 (Left)
324 Vertical Stabilizer - Rear Spar to Trailing Edge
(2)
Access Panels
311AL Control Cables
324AL Body to Fin Seal
324CL Rudder Hinge and PCAs
F.
Install the Aft Quadrant Assembly (Fig. 201)
S 622-018
(1)
Apply the corrosion preventive compound to the bolt assemblies before installation.
S 432-019
(2)
Do these steps to install the aft quadrant assembly on its brackets:
(a)
Align the aft quadrant assembly with the bracket connection points.
(b)
Install the bolt assemblies, bushings, and the washers.
(c)
Install the inner nut and tighten it to 50 - 60 pound-inches (5.7-6.7 newton-meters).
(d)
Install the outer nut and tighten it to 10 pound-inches
(1.1 newton-meters).
NOTE: Do not change the torque value for the inner nut.
____
S 432-020
(3)
Do these steps to connect the rudder trim actuator to the feel, centering, and trim mechanism:
(a)
Install the bolt assembly, bushings, and the washers.
(b)
Install the inner nut and tighten it to 50 - 60 pound-inches (5.7-6.7 newton-meters).
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MAINTENANCE MANUAL
(c) Install the outer nut and tighten it to 10 pound-inches
(1.1 newton-meters).
NOTE: Do not change the torque value for the inner nut.
____
S 862-021
(4)
Remove the DO-NOT-CLOSE tags and close this circuit breaker on the overhead panel, P11:
(a)
11C10, RUD TRIM
S 492-022
(5)
Operate the rudder trim switch on the aft electronic control panel, P8, until rig pin R3 (for the aft quadrant assembly) can be easily installed.
S 822-023
(6)
Do these steps to adjust the feel and centering springs:
(a)
Do these steps to adjust the short feel and centering spring: 1) Install the short spring. 2) Connect the force gage to the top cable guard pin on the
aft quadrant. 3) Loosen the eyebolt for the short spring and use the force gage to turn the quadrant in a clockwise direction. 4) Adjust the shim washers below the eyebolt until the tangential load is 2.20 |0.20 pounds
(9.78 +/- 0.9 newtons).
NOTE: Make sure rig pin R3 is held lightly by the rig pin
____ holes when you measure the force.
5) Connect the force gage to the bottom cable guard on the aft quadrant. 6) Use the force gage to turn the quadrant in a counterclockwise direction. 7) Make sure the tangential load is 2.20 |0.20 pounds
(9.78 +/- 0.9 newtons). If adjustment is necessary, make sure the tangential load at the top cable guard pin does not change.
NOTE: Make sure rig pin R3 is held lightly by the rig pin
____ holes when you measure the force.
8) Tighten the eyebolt for the short spring.
(b) Do these steps to adjust the long feel and centering spring: 1) Install the long spring. 2) Connect the force gage to the top cable guard pin on the
aft quadrant. 3) Use the force gage to turn the quadrant in a clockwise direction.
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MAINTENANCE MANUAL
4) Adjust the shim washers below the eyebolt for the long spring until the tangential load is 4.35 |0.45 pounds
(19.3 +/- 2.0 newtons).
NOTE: Make sure rig pin R3 is held lightly by the rig pin
____ holes when you measure the force.
5) Connect the force gage to the bottom cable guard pin on the aft quadrant. 6) Use the force gage to turn the aft quadrant in a counterclockwise direction. 7) Make sure the tangential load is 4.35 |0.45 pounds
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