Hartzell HC-D2MV20-3 Series, Owner'S Manual And Logbook

Page: 111 / 204

Propeller Owner’s Manual
140
INSTALLATION AND REMOVAL
61-00-40
Page 3-47
Rev. 3 Feb/14
(k) Install the outer ring. Refer to Figure 3-8.2
1 Position the chamfered side of the outer ring
flush against the diaphragm.
2 Align the mounting holes in the outer ring with
the holes in the diaphragm and cylinder.
a If the outer ring has a tab, as shown in
Figure 3-8.2, align the tab with the valve
assembly mounting surface (if present),
not the diaphragm tab.
3 Install the lock washers onto the screws
(Table 3-1), then install the screws through the
outer ring and diaphragm into the cylinder.
CAuTIon: The RIng MAy BReAk IF only A
Few SCRewS ARe TIghTeneD In A
loCAlIZeD AReA.
4 using a staggered sequence, tighten all of the
outer ring screws slightly, then repeat until the
diaphragm squeezes out past the edges of
the outer ring 0.062 inches (1.57 mm) and the
proper torque is achieved. Refer to Table 3-2,
Torque Values.
5 After one hour, visually inspect the diaphragm
protrusion around the outside of the outer ring,
and from the inside of the inner ring.
a If the protrusion has receded, retighten all
of the outer ring and/or inner ring screws
evenly to get the 0.062 inch (1.57 mm)
protrusion.