Propeller Owner's Manual
136
TESTING AND TROUBLESHOOTING
61-00-36
Page 4-1
Rev. 2 Feb/17
TESTING AND TROUBLESHOOTING - CONTENTS
1. Operational Tests .......................................................................4-3
A. General ..............................................................................4-3
B. Initial Run-Up to Purge Trapped Air ...................................4-3
C. Beta Range Operation Check ............................................4-4
D. Governor Operation Check ................................................4-4
E. Static RPM Check .............................................................4-5
F. Oil Leakage Check ............................................................4-6
2. Propeller Ice Protection Systems ...............................................4-6
3. Troubleshooting ..........................................................................4-7
A. Hunting and Surging ..........................................................4-7
B. Engine/Propeller Speed Varies with Airspeed ...................4-8
C. Engine/Propeller Speed Increases With Increasing
Engine Power And Decreases With Decreasing
Engine Power ....................................................................4-9
D. Governor RPM Control of Engine/Propeller Speed Has
Little or No Effect ...............................................................4-9
E. Propeller Underspeed ......................................................4-10
F. Propeller Overspeed ........................................................4-11
G. Beta Range Operation .....................................................4-12
H. Vibration ..........................................................................4-13
I. Oil or Grease Leakage ....................................................4-15
