Hartzell HC-E3YR-7 Owner's Manual page 52

Retaining Ring
Engine Shaft
Stop
Collar
Beta
Pitch
Lockout
Adjust
Flyweight
Spacers
Oil
Pressure
Gauge
Pressure Control Reversing Propeller System
DESCRIPTION AND OPERATION
Propeller Owner's Manual
Hub
Reversing
Spring
Beta
Lockout
Assembly
Pressure Control Unit
Governor
Engine
Figure 2-2
136
Pitch Change Knob
Blade
Pitch Change Rod
Oil
Fork
Piston
Counterweight
Higher Oil
Pressure
Relief
Valve
Pressure
Relief
Compression
Spring
61-00-36
Cylinder
Spring
Pilot
Control
Lower Oil
Pressure
Plunger
Minimum
Pressure
Adjustment
Page 2-4
Rev. 2 Feb/17