Propeller Owner's Manual
140
TESTING AND TROUBLESHOOTING
61-00-40
Page 4-3
Rev. 2 Jun/12
1. Operational Tests
Following propeller installation, and before the first flight of the day,
the propeller system must be purged of air and proper operation
verified.
WARNING:
REFER TO THE AIRCRAFT MAINTENANCE
MANUAL OR THE STC FOR ADDITIONAL
PROCEDURES THAT MAY BE REQUIRED
AFTER PROPELLER INSTALLATION.
CAUTION:
INSTRUCTIONS AND PROCEDURES IN
THIS SECTION MAY INVOLVE PROPELLER
CRITICAL PARTS. REFER TO THE
INTRODUCTION CHAPTER OF THIS MANUAL
FOR INFORMATION ABOUT PROPELLER
CRITICAL PARTS. REFER TO THE
ILLUSTRATED PARTS LIST CHAPTER OF THE
APPLICABLE OVERHAUL MANUAL(S) FOR THE
IDENTIFICATION OF SPECIFIC PROPELLER
CRITICAL PARTS.
A. Initial Run-Up
(1) Perform engine start and warm-up per the Pilot's
Operating Handbook (POH).
(2) Cycle the propeller control throughout its operating range
from low to high (or as directed by the POH).
(3) Repeat this procedure at least three times to purge air
from the propeller hydraulic system and to introduce
warmed oil to the cylinder.
NOTE: Pitch change response on the first operation
from low to high blade angle may be slow but
should speed up on the second and third cycles.
(4) Verify proper operation from low pitch to high pitch and
throughout operating range.
(5) Shut down engine in accordance with the POH.
NOTE: Air trapped within the propeller hydraulic cylinder
will cause pitch control to be imprecise and may
result in propeller surging.
B. Static RPM Check (Governing Propeller)
(1) Perform this operational check after installation,
maintenance, or propeller adjustment.
Summary of Contents for HC-D2MV20-3 Series
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