Hartzell HC-E4 3 Series Owner's Manual page 114

CAUTION 1:
CAUTION 2:
(6) Install self-locking mounting nuts with washers onto the
propeller mounting bolts with the chamfer on the washer
against the mounting nut. Refer to Figure 3-1.
(a) For applicable mounting hardware, refer to Table 3-1.
(b) If the propeller is removed between overhaul
intervals, mounting nuts and washers may be reused
if they are not damaged or corroded.
(7) Using a torque wrench and the specified torque wrench
adapter (refer to the Tooling section in this chapter), torque
all mounting nuts in the sequences and steps shown in
Figure 3-3.
(a) Refer to Table 3-2 and Figure 3-2 to determine the
proper torque value.
(8) 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.
(9) Decompress the external beta system and remove the
beta system puller.
CAUTION:
(10) 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.
INSTALLATION AND REMOVAL
Propeller Owner's Manual
NEW PROPELLER MOUNTING NUTS MUST
BE USED WHEN INITIALLY INSTALLING A
NEW OR OVERHAULED PROPELLER.
THE SIDE OF THE WASHER WITH THE OD
CHAMFER MUST BE AGAINST THE
ENGINE FLANGE. REFER TO FIGURE 3-1.
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. 16 May/20
Page 3-24