Hartzell HC-D2MV20-3 Series Owner's Manual And Logbook page 129

CAUTION:
(j) Grip the blade counterweight on each blade clamp
and, at the same time, rotate the blades to install the
push rods through the hub bushings and install the
hub on the rear cone.
CAUTION:
(k) Install the hub nut on the engine shaft.
(l) 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.
(m) Check the travel of the piston
1 Grip the blade counterweights and, at the same
time, rotate to linearly move the jack plate and
piston.
2 Travel should be 0.375 inch (9.52 mm) or 0.187
inch (4.75 mm) on either side of the neutral
position of the diaphragm.
3 If the distance is not sufficient, remove the
propeller and install or remove shim(s) between
the rear cone and the engine to obtain the desired
travel capability.
(n) Using a hub nut safety pin, safety the hub nut to the
engine shaft. Refer to Table 3-1.
NOTE:
INSTALLATION AND REMOVAL
Propeller Owner's Manual
DO NOT USE EXTREME FORCE TO
INSTALL THE HUB ON THE ENGINE
SHAFT AND REAR CONE.
MAKE SURE THE HUB NUT THREADS
HAVE PROPERLY ENGAGED
The hub nut safety pin is normally supplied
in a bag when the propeller is shipped new
from the factory.
140
61-00-40
Page 3-63
Nov/02