Propeller Owner’s Manual
139
INSTALLATION AND REMOVAL
61-00-39
Page 3-25
Rev. 17 Apr/20
WARNING
:
MAKE SURE THE SLING IS RATED UP
TO 800 LBS (363 KG) TO SUPPORT THE
WEIGHT OF THE PROPELLER ASSEMBLY
DURING INSTALLATION.
CAUTION:
WHEN INSTALLING THE PROPELLER
ON THE AIRCRAFT, DO NOT DAMAGE
THE ICE PROTECTION SYSTEM
COMPONENTS, IF APPLICABLE.
(2) With a suitable crane hoist and sling, carefully move
the propeller assembly to the aircraft engine mounting
flange.
CAUTION:
IF THE PROPELLER IS REMOVED
BETWEEN OVERHAUL INTERVALS, A
TORQUE CHECK OF THE MOUNTING
STUDS MUST BE PERFORMED.
(3) Unless this is the first installation of a new, or newly
overhauled propeller, perform a torque check of the
propeller mounting studs as follows:
(a) Thread the torque check tool AST-2968-1 onto each
propeller mounting stud and torque to 35 ft-lbs
(47.6 N•m).
(b) Visually inspect each stud for evidence of
movement.
(c) Remove the torque check tool AST-2968-1 while
visually inspecting each stud for evidence of
movement.
(d) If any stud rotates due to either the tightening or
removal of the torque check tool, all studs must be
replaced. Refer to Hartzell Propeller Inc. Standard
Practices Manual 202A (ATA 61-01-02) for stud
replacement procedures.
(4) Make sure the propeller hub flange and the engine
flange mating surfaces are clean.
(5) Install the specified O-ring on the engine flange. Refer to
Table 3-1.
(6) If the C-7364-2 spacer is attached to the propeller hub
with screws, proceed to step 3.D.(8).
