Hartzell HC-B3-2 Series Owner's Manual And Logbook page 151

(c) Pull the spring retainer tight against the split retainer.
(d) Install the ring retention plate.
(e) Install the ring retention plate screws and tighten
until snug.
(f) Safety screws with 0.032 inch (0.81 mm) minimum
diameter stainless steel safety wire or equivalent
aircraft safety cable and associated hardware (two
bolts per safety).
(21) Install the C-3317-012-2 O-ring in the front inside cavity
of the pitch change rod. Refer to Figure 3-14.
(22) Reinstall the piston on the cylinder and pitch change rod
in the same position it was before disassembly. Refer to
Figures 3-14 and 3-16.
(a) Reconnect the link arms to the piston.
(b) Install the link pin units.
(c) Install the link pin unit safety screws.
(d) Safety the link pin screws with 0.032 inch (0.81 mm)
minimum diameter stainless steel safety wire. Refer
to Figure 3-16.
(e) Hand tighten the A-880-1 piston nut on the pitch
change rod.
(f) Position a breaker bar and a 5/8 inch deep well
socket on the pitch change rod.
(g) Use a crowfoot wrench and torque wrench to torque
the A-880-( ) piston nut. Refer to Table 3-2 and
Figure 3-1 for the proper torque value.
NOTE:
(h) Install a socket head screw, washer and jam nut
onto each piston guide rod. Refer to Figure 3-14.
(i) Torque the jam nuts on the piston guide rods as
indicated in Table 3-2.
INSTALLATION AND REMOVAL
Propeller Owner's Manual
The removal and subsequent reinstallation
of the piston nut does not require that the
propeller blade angles be re-checked.
61-00-39
139
Rev. 17 Apr/20
Page 3-51