Propeller Owner’s Manual
139
INSTALLATION AND REMOVAL
61-00-39
Page 3-37
Rev. 17 Apr/20
CAUTION:
ID CHAMFER OF THE WASHER MUST
BE FACING TOWARD THE BOLT HEAD.
WASHERS WITHOUT CHAMFER MUST
BE INSTALLED WITH ROLLED EDGES
TOWARD THE BOLT HEAD (FIGURE 3-3).
(11) Install the mounting bolts with washers through the
engine flange and into the propeller hub flange. Refer to
Figure 3-4.
(12) Use a torque wrench and the specified torque wrench
adaptor (Refer to the section, “Tooling” in this chapter)
to torque all mounting bolts in sequences and steps
shown in Figure 3-2. Refer to Table 3-2 and Figure 3-1 to
determine the proper torque value.
(13) Safety all mounting bolts with 0.032 inch (0.81 mm)
minimum diameter stainless steel wire or equivalent
aircraft safety cable and associated hardware (two bolts
per safety.)
(14) Remove the heavy wire from the start lock housings to
free the start lock pins.
(15) Refer to the airframe manufacturer’s instructions to seat
the start lock plates on the start locks.
NOTE: The start lock plates interface with the start
lock pins and are attached to the inboard
surface of each blade clamp.
CAUTION:
TO FACILITATE BOXING AND SHIPPING
OF PROPELLERS, THE PISTON NUT
(A-880-2) ON -5 STEEL HUB TURBINE
PROPELLERS MAY HAVE BEEN
REMOVED TO ALLOW ROTATING OF THE
BLADES BEFORE PACKAGING.
(16) Procedure for reinstallation of piston nut, if applicable.
(a) Following the installation of the propeller, use a
breaker bar and a one inch deep well socket to hold
the pitch change rod.
