Hartzell HC-D2MV20-3 Series Owner's Manual And Logbook page 76

(h) Verify the installation of both cylinder-to-piston O-rings
in the piston. Refer to Figure 2-2 and Table 3-1 for the
location and part numbers, if required.
(i) Position the piston and jack plate unit over the
cylinder, and clock the piston to the cylinder by
aligning a number stamped on the piston with the
number stamped on the cylinder.
(j) Align the appropriate holes in the piston with the guide
rods in the cylinder.
NOTE:
CAUTION:
(k) Install the jack plate unit and piston assembly into the
cylinder. Use a rubber mallet as necessary to bottom
the piston in the cylinder.
(l) If not already attached, install the hydraulic valve
assembly on the piston, along with a gasket and two
screws (Table 3-1).
(m) Using a No. 51 drill, drill through the side of the valve
housing and through the heads of the two screws
(Table 3-1). Safety with 0.032 inch (0.81 mm) safety
wire.
(n) Clean the engine shaft with and approved solvent.
(o) Oil the engine shaft with engine oil.
(p) Install the spacer(s) and rear cone (Table 3-1).
NOTE:
INSTALLATION AND REMOVAL
Propeller Owner's Manual
Cylinder-to-piston guide rods may bind
in the piston if the cylinder and piston
combination is changed from that originally
supplied.
DO NOT DAMAGE THE PISTON
O-RINGS WHEN INSTALLING THE
PISTON INTO THE CYLINDER.
Install the same number of spacers as
previously installed, if the same propeller
is reinstalled. If a different propeller is
installed, install one spacer. The need for
additional spacers will be determined during
static RPM checks, after the propeller is
installed.
140
61-00-40
Page 3-12
Nov/02