Hartzell HC-D2MV20-3 Series Owner's Manual And Logbook page 110

B-120 outer Ring
Tab
Some outer rings have a tab as shown in the illustration.
Align the tab with the valve assembly mounting surface on the cylinder (if present).
B-120 outer Ring
Chamfered side of the outer
ring against the diaphragm.
B-113-2 Inner Ring
B-119-2 Diaphragm
C-111-( ) Cylinder
INSTALLATION AND REMOVAL
Propeller Owner's Manual
Valve Assembly
Mounting Surface
(if present)
Installation of the outer Ring
Figure 3-8.2
140
B-119-2 Diaphragm
(installed on cylinder)
61-00-40
Diaphragm
Tab
Page 3-46
Rev. 3 Feb/14