Hartzell HC-D2MV20-3 Series Owner's Manual And Logbook page 77

WARNING:
(q) With a suitable crane hoist and sling, carefully move
the propeller assembly to the aircraft engine shaft.
(r) Install the propeller hub on the engine shaft.
CAUTION 1:
CAUTION 2:
(s) Install a pitch change block on each link screw.
(t) Grip the blade counterweight on each blade clamp
and, at the same time, rotate the blades to high pitch
until the push rods that protrude from the jack plate
unit stop short of the two bushing lugs on the hub.
(u) Rotate the jack plate unit to allow each fork to engage
each pitch change block and to align each push rod
with each hub bushing.
(v) Grip the blade counterweight on each blade clamp,
and at the same time, rotate both blades to low pitch
by hand.
(w) Rotate the blades to install the push rods through the
hub bushings.
CAUTION:
(x) Install the hub on the rear cone.
(y) Install the hub nut on the engine shaft. Make sure the
threads have engaged properly.
(z) Torque the hub nut on the engine shaft using tool
BST-2910. Refer to Table 3-2 and Figure 3-2 to
determine the proper torque value to which the torque
wrench must be set.
INSTALLATION AND REMOVAL
Propeller Owner's Manual
MAKE SURE THE SLING IS SUITABLY
RATED TO SUPPORT THE WEIGHT OF
THE PROPELLER ASSEMBLY DURING
INSTALLATION.
USE THE MARKINGS MADE DURING
BENCH ASSEMBLY TO MATCH THE
FORKS, BLOCKS, AND LINKSCREWS
THAT WERE PREVIOUSLY MATED.
MAINTAIN THE SAME BLOCK
ORIENTATION THAT WAS
ESTABLISHED DURING BENCH
ASSEMBLY AND ADJUSTMENT.
DO NOT USE EXTREME FORCE TO
INSTALL THE HUB ON THE ENGINE
SHAFT AND REAR CONE.
61-00-40
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Page 3-13
Nov/02