Propeller Installation - Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual

PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
GENERAL
Description
The propeller is a Hartzell model number HC-E4N-3Q/E8501K-3.5, 82.5 inch diameter, four blade, metal,
constant speed unit with reversing and full feathering capabilities. The propeller is deiced with electrically
heated boots (See 30-60-00).
The propeller governor pressurizes and regulates the flow of the propeller gearbox oil to a piston in the
propeller dome. The piston is linked by a sliding rod and fork arrangement to the propeller blades.
Governor oil pressure against the piston works to decrease propeller blade pitch. Centrifugal twisting
moments on the propeller blades work to decrease propeller blade pitch and increase rpm. Governing of
the interaction of these and other forces to maintain constant rpm is provided by the propeller governor.
The propeller governor maintains a constant propeller speed and is not pilot controlled, but rather fixed
at a maximum propeller speed of 2000 RPM. Propeller feather is selected by moving the condition lever
to the cutoff position. Beta and reverse blade angles are controlled by power lever movement. Movement
of the power lever into the beta and reverse range of operation is only possible on the ground via a squat
switch controlled solenoid. An additional overspeed governor is also provided to protect against propeller
and power turbine overspeed.

Propeller Installation

Figure 1
61-00-00
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7C7 Apr 15/07