Diamond DA 42 NG, Maintenance Manual

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AIRCRAFT
Flight Controls
DA 42 NG AMM
Page 6
15 Mar 2018
27-20-00
Doc # 7.02.15
Rev. 4
Two cable assemblies (fuselage cables) attach to the rear of the yoke. Each cable has a short front
cable and a longer rear cable. All cables go through Teflon tubes. Turnbuckles connect the front cable
to the rear cable. The turnbuckles can adjust the tension in the fuselage cables and the neutral position
of the rudder.
The two fuselage cables go through Teflon tubes in the rear fuselage. The cables attach to the rudder
lower mounting bracket. The cables cross over each other in the rear fuselage.
The rudder stop which limits the rudder deflection to the left side is located left of the lower rudder
hinge (Figure 4). The rudder stop which limits the ruder deflection to the right side is located right of
the rudder lower hinge. Each rudder stop consists of a nut which is welded to the rudder lower
mounting-bracket and a bolt which is held tight in the nut by a jam nut.
3. Operation
If you move the left rudder pedal forward:
)
The top of the “S” shaped tube moves forward.
)
The “S” shaped tube pulls the left cockpit cable.
)
The left cockpit cable moves the yoke counterclockwise (seen from above).
)
The yoke pulls the fuselage cable attached to its right arm forward. This cable connects to the left
of the rudder.
)
The fuselage cable deflects the rudder to the left.
)
The rudder movement pulls the other fuselage cable aft. This cable connects to the left of the yoke.
)
The fuselage cable moves aft with the left side of the yoke.
)
The left side of the yoke pulls both of the right cockpit cables aft. And the cables pull the “S” shaped
tube on the right rudder pedals aft.
If you move the right rudder pedal forward each part moves in the opposite sense. The rudder moves
to the right and pulls the left cables aft.