INSPECTION AND CHECK
61-00-39
Page 5-6
Rev. 17 Apr/20
Propeller Owner’s Manual
139
3. Operational Checks
(Rev. 1)
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) Following propeller installation
and before flight
, perform
the Initial Run-up procedure in accordance with the
instructions in this section.
(2) Perform engine start and warm-up in accordance with
the Pilot’s Operating Handbook (POH).
CAUTION:
AIR TRAPPED IN THE PROPELLER
HYDRAULIC CYLINDER WILL CAUSE
PITCH CONTROL TO BE IMPRECISE AND
CAN CAUSE PROPELLER SURGING.
(3) Cycle the propeller control through the operating blade
range from low pitch (or reverse), to high pitch (or as
specified in the POH).
(a) Repeat this step at least three times.
NOTE: Cycling the propeller control purges air
from the propeller hydraulic system and
introduces warm oil to the cylinder.
(4) Check the propeller speed control and operation from
low pitch (or reverse) to high pitch using the procedure
specified in th
e POH.
(a) Perform all ground functional, feathering, and
cycling checks with the minimum propeller RPM
drop required to demonstrate the function.
