Hartzell HC-D2MV20-3 Series Owner's Manual And Logbook page 94

(6) If there is interference, continue with the following steps:
(a) Identify a dimension required to space the clamp
assembly and valve assembly apart and reestablish
positive clearance.
(b) Increase the thickness of the reverse stop with the
dimension required to reestablish positive clearance
between the clamp assembly and the valve assembly.
1 Refer to Figure 3-3 for a listing of reverse stop
thicknesses.
2 Select a single stop with the required thickness.
(c) Remove the nuts and washers, if applicable, from the
ends of the three push rods protruding from the jack
assembly.
NOTE:
(d) Twist the counterweights toward high pitch to move
the push rods and sleeve toward the engine are far as
they will travel.
(e) Loosen and unthread the hub nut from the engine
shaft.
NOTE:
(f) Allow the jack assembly push rods to completely slide
out of the guide collar.
(g) Turn the jack plate unit until the pitch change forks
disengage from the pitch change blocks.
(h) Install the reverse stop with the new dimension
thickness onto hub.
(i) Position the jack plate unit and the hub to engage the
pitch change blocks.
(j) Position the blades so the forks can slide onto the
pitch change blocks.
INSTALLATION AND REMOVAL
Propeller Owner's Manual
Keep the nuts and washers with the
propeller and jack assembly.
This will pull the propeller away from the
engine and allow the push rods and sleeves
to slide out of the guide collar on the engine
side of the guide collar.
140
61-00-40
Page 3-30
Nov/02