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outboard control cable goes inboard through 2 guide pulleys on the forward control bulkhead. The
cables connect each outer pedal to the yoke in the center fuselage.
Each inboard control cable goes through teflon tubes in the forward control bulkhead. The cables
connect each inner pedal to the yoke in the center fuselage.
Two cables (‘Aft Fuselage cables’) attach to the rear of the yoke in the center fuselage. The two
cables have turnbuckles which can adjust the rudder control system.
The two aft fuselage cables go through teflon tubes in the rear fuselage. The cables attach to the
rudder mount on the rudder mounting bracket.
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Figure 2: Rudder Pedal Assembly
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3. Operation
If you move the left rudder pedal forwards:
− The top of the “S” shaped tube moves forward.
− The “S” shaped tube pulls the left cockpit cable.
− The left cockpit cable moves the left side of the yoke forwards.
− The yoke pulls the left aft fuselage cable forwards.
− The left aft fuselage cable moves the rudder to the left.
− The rudder movement pulls the right aft fuselage cable aft.
− The right aft fuselage cable moves aft with the right side of the yoke.
− The right side of the yoke pulls the right cockpit cables aft. And the cables pull the “S”
shaped tubes on the right rudder pedals aft.
If you move the right rudder pedal forward:
− The right cockpit and aft fuselage cables move forward.
− The rudder moves to the right.
− The left cables moves aft.
− The left cables pull the left rudder pedals aft.
You can adjust the position of the rudder pedals. When you pull on the adjuster handle, the latch
disengages from the bottom sledge tube. If you pull further, the pedal assembly moves along the
sledge tube towards you. Release the handle, then push with your feet on both pedals. The latch
will lock.
If you push with both feet while you pull the handle, the pedal assembly moves along the sledge
tubes away from you. . Release the handle, then push with your feet on both pedals. The latch will
lock.
When you adjust the position of the pedals, the control cables move through the “S” shaped tubes.
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TROUBLE SHOOTING
1. General
The table below lists the defects you could have in the rudder control system. If you have the
trouble detailed in the Trouble column read across to the Possible Cause column. Then do the
repair in the Repair column.
Trouble Possible Cause Repair
Aircraft moves about its yaw
axis.
Rudder cables out of
adjustment.
Fixed trim tab out of adjustment.
Adjust the rudder cables.
Adjust the fixed trim tab.
Rudder controls stiff/catch. Bearings defective. Replace the defective
bearings.
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MAINTENANCE PRACTICES
1. General
These maintenance practices tell you how to do test procedures on the rudder control system. And
they tell you how to adjust the rudder control system. Refer to Chapter 55-40 to remove/install the
rudder.
WARNING: WHEN YOU DO WORK ON THE AIRPLANE CONTROLS. YOU MUST
MAKE SURE THAT THE AREAS AROUND THE
CONTROLS/CONTROL SURFACES ARE CLEAR OF
PERSONS/EQUIPMENT. IF YOU DO NOT DO THIS, INJURY TO
PERSONS AND DAMAGE TO CONTROL SURFACES CAN OCCUR.
WARNING: WHEN YOU COMPLETE WORK ON THE CONTROLS, MAKE SURE
THAT YOU REMOVE ALL LOOSE ITEMS/TOOLS FROM THAT AREA.
LOOSE ITEMS/TOOLS CAN PREVENT FULL MOVEMENT OF THE
AIPLANE CONTROLS. THIS CAN CAUSE DEATH OR INJURY TO
PERSONS.
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2. Rudder Control System Test For Correct Range Of Movement
A. Rudder Control Test Procedure
Detail Steps/Work Items Key Items
(1) Make a copy of the Control Adjustment
Report.
− Use it to record the measurements.
Refer to Chapter 06-00.
(2) Set both rudder pedals fully forward.
(3) Set the rudder pedals central:
　
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本文鏈接地址：鉆石20系列AMM 1(99)