3 Control Cable Verification
The SkyView HDX Autopilot system for the Piper PA-34 Seneca series of airplanes is designed
to attach to the airplane's original 1/8" diameter control cables. It is important for installers to
verify the diameter of the control cables before starting installation activities. The diameter of
control cables should be measured in the vicinity where the autopilot servos will be installed (see
Figure 1).
To gain access to this area, installers will need to remove the second row seats, carpeting, and
the floor in accordance with the Piper PA-34 Seneca Service Manual. The servos will be located
beneath the cabin floor between the main spar and the rear spar carry-through structures. The
roll servo will be on the left-hand side of the cabin (see Figure 1); the pitch servo will be located
on the right-hand side of the cabin (see Figure 1).
Control Cable Specification:
The airplane's control cables must meet the requirements for 1/8" wire rope as specified by
MIL-DTL-83420.
If the airplane's original control cables are outside this specification, contact
Dynon Technical Support for a resolution.
Out-of-specification control cables can cause cable clamps to slip under load,
causing the bridle cable to loosen and come off the capstan.
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