Hartzell HC-B3-2 Series Owner's Manual And Logbook page 121

CAUTION:
(8) Install mounting bolts with washers through the engine
flange and into the propeller hub flange. Refer to
Figure 3-4.
(9) 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.
(10) 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).
(11) Decompress the external beta system and remove the
beta system puller.
CAUTION:
(12) Examine the beta ring to make sure that it is not in
contact with any engine component or mounting bolt
safety wire.
(a) If there is contact between the beta ring and any
engine component or mounting bolt safety wire,
consult qualified personnel at an appropriately
licensed propeller repair facility.
(13) Install the carbon block into the beta linkage lever
in accordance with the airframe manufacturer's
instructions.
INSTALLATION AND REMOVAL
Propeller Owner's Manual
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. (REFER TO
FIGURE 3-3).
THE BETA RING MUST NOT CONTACT ANY
ENGINE COMPONENT OR MOUNTING BOLT
SAFETY WIRE. THE BETA SYSTEM COULD
BE DAMAGED IF IT CONTACTS ANY STATIC
ENGINE COMPONENT WHILE ROTATING.
139
61-00-39
Rev. 17 Apr/20
Page 3-21