Piper PA-24 Comanche, Service Manual

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PIPER COMANCHE SERVICE MANUAL
04/01/09 XII - ELECTRONICS
3H7
12-7.
Piper A.F.C.S. Equipment.
In early model airplanes, Piper AutoPilot equipment is branded with the Piper name. Refer to the
appropriate Piper AutoPilot / Flight Director Service Manual for service information.
NOTE: If a Roll Axis-only AutoPilot is installed, or if no AutoPilot is installed, consult the Piper Pitch
Trim Service Manual, P/N 753-771, for manual electric pitch trim service information
The following is a complete listing of Piper A.F.C.S. equipment service literature. It is imperative to
correctly identify the AutoPilot system by "faceplate" model name, in order to consult the appropriate
service manual. Consult the aircraft parts catalog for replacement parts
Name P/N
AutoControl I II & AltiMatic I II 753-798
AutoControl Ill and AlttMatic III and IIIB 753-723
AutoControl IIIB and AltiMatic IIIB-I 761-502
AltiMatic IIIC 761-602
AltiMatic V and V-I 761-525
AltiMatic V F Dand V F D-l 761-526
AltiMatic X F.D. A.P., & X A.P 761-668
AutoFlite 753-720
AutoFlite II
761-481
12-7a.
100 Hour AutoControl III / Altimatic III Autopilot Inspection.
In PA-24-260 S/N’s 24-4567 and up, for airplanes equipped with Piper AutoControl III, AltiMatic III,
AltiMatic IIIB, or AltiMatic IIIB-1 autopilots,
each 100 hours time-in-service or annually, whichever
comes first, inspect the servo and bridle cable installations for the following:
NOTE: Refer to a current copy of the appropriate Automated Flight Control System service manual per
paragraph 12-7. Verify current revision by referring to Piper Customer Service Information File.
A. Loose bridle cables.
B. Damaged bridle cables or frayed bridle cable strands, particularly at the bridle cable pin where
bridle cable attaches to capstan.
C. Bridle cable clamp screw torquie. (See A.F.C.S. Service Manual.)
D. Safety sleeves replaced (if required). (See A.F.C.S. Service Manual.)
E. Cable guard positioning and clearance.
F. Primary control system cables and bridle cable tension settings. (See A.F.C.S. Service Manual.)
G. Perform clutch override test. (See A.F.C.S. Service Manual.)