Propeller Owner’s Manual
139
TESTING AND TROUBLESHOOTING
61-00-39
Page 4-7
Rev. 17 Apr/20
F. Start Lock Units Fail to Latch
(-2, -5 and some -3 Models)
(1) Propeller was feathered before shutdown.
(2) Shutdown occurred at high RPM with propeller control
off the low pitch stop.
(a) The problem may be solved by restarting the engine,
placing the propeller control in the proper shut down
position, and then shutting down the engine.
(b) For HC-B(3,4,5)( )( )-5( ), the problem may be solved
by using the engine auxiliary pump to reposition the
propeller on the start lock units.
(3) Excessive governor pump leakage.
The problem should be referred to an appropriately
licensed propeller repair facility.
(4) Broken start lock unit(s).
The problem should be referred to an appropriately
licensed propeller repair facility.