Hartzell HC-E4 3 Series Owner's Manual page 122

(10) U sing a torque wrench and the specified torque wrench
adapter (refer to the section, "Tooling" in this chapter),
torque all mounting nuts in accordance with the
sequences and steps shown in Figure 3-3.
(a) Refer to Table 3-2 and Figure 3-2 to determine the
correct torque value.
(11) Safety all propeller mounting nuts with 0.032 inch
(0.81 mm) minimum diameter stainless steel wire or
equivalent aircraft safety cable, two nuts for each safety.
(12) Decompress the external beta system and remove the
beta system puller.
CAUTION:
(13) Examine the beta feedback collar to make sure that it is
not in contact with any engine components or mounting
bolt safety wire.
(a) If there is contact between the beta feedback collar
and any engine components or mounting bolt
safety wire, contact qualified personnel at a certified
propeller repair station with the appropriate rating.
(14) Install the carbon block into the beta linkage lever,
in accordance with the airframe manufacturer's
instructions.
(a) If the beta linkage lever is not installed correctly, there
may be interference between the beta linkage lever
and Fillet A, as shown in Figure 3-6. Refer to
Figure 3-6 and Figure 3-7.
1 If there is interference at Fillet A, make a chamfer
in the beta linkage lever to clear Fillet A, as
shown in Figure 3-6. The maximum radius in
Fillet A as manufactured is 0.015 inch (0.38 mm).
INSTALLATION AND REMOVAL
Propeller Owner's Manual
THE BETA FEEDBACK COLLAR
MUST NOT CONTACT ANY ENGINE
COMPONENT OR MOUNTING BOLT
SAFETY WIRE. THE BETA FEEDBACK
MECHANISM COULD BE DAMAGED IF
IT CONTACTED ANY STATIC ENGINE
COMPONENT WHILE ROTATING.
147
61-00-47
Rev. 17 Sep/20
Page 3-32