Hartzell HC-D2MV20-3 Series, Руководство пользователя и журнал учета

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Propeller Owner’s Manual
140
INSTALLATION AND REMOVAL
61-00-40
Page 3-68
Rev. 2 Jun/12
5. Propeller Removal
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. Removal of the HC-D2(MV,V)20-3 Propeller Assembly
(1) Propeller Removal
(a) Disconnect the reverse pitch control cable from the
hydraulic valve lever on the short end that extends
from the valve spool.
(b) Disconnect the propeller pitch control cable from the
hydraulic valve lever on the long end that extends
from the valve spool.
(c) Remove the hub nut safety pin from the hub nut.
(d) Completely loosen and unthread the hub nut from the
engine shaft threads.
NOTE: Because the hub nut is pulling the propeller
hub off the tapered rear cone, there will be
significant resistance to the loosening of the
shaft nut.
(e) Grip the blade counterweight on each blade clamp
and, at the same time, rotate the blades to high pitch
(f) Rotate the blades until the push rods that protrude
from the jack plate unit slide out of each of the two
hub lug bushings.
(g) Rotate the jack plate unit to allow each fork to
disengage each pitch change block.
(h) Remove the pitch change block from each blade
clamp link screw.