Propeller Owner’s Manual
147
INSTALLATION AND REMOVAL
61-00-47
Page 3-59
Rev. 17 Sep/20
WARNING 1: DURING ENGINE INSTALLATION OR
REMOVAL, USING THE PROPELLER TO
SUPPORT THE WEIGHT OF THE ENGINE
IS NOT AUTHORIZED. UNAPPROVED
INSTALLATION AND REMOVAL
TECHNIQUES MAY CAUSE DAMAGE TO
THE PROPELLER THAT MAY LEAD TO
FAILURE AND RESULT IN AN AIRCRAFT
ACCIDENT.
WARNING 2: DURING PROPELLER REMOVAL,
AIRFRAME MANUFACTURER’S MANUALS
AND PROCEDURES MUST BE
FOLLOWED BECAUSE THEY MAY
CONTAIN ISSUES VITAL TO AIRCRAFT
SAFETY THAT ARE NOT CONTAINED IN
THIS MANUAL OR THE HARTZELL
PROPELLER INC. OVERHAUL
MANUALS 143A (61-10-43), 156A (61-10-56),
157 (61-10-57), OR 158A (61-10-58).
WARNING 3: MAKE SURE THE SLING IS RATED UP TO
800 LBS (363 KG) TO SUPPORT THE
WEIGHT OF THE PROPELLER ASSEMBLY
DURING REMOVAL.
(6) Cut and remove the safety wire or safety cable on the
propeller mounting bolts.
(7) Support the propeller assembly with a sling.
(a) Supporting the propeller with a sling may be delayed
until all but two mounting bolts and washers have
been removed to permit rotating the propeller for
ease of bolt removal.
(b) If the propeller will be reinstalled and it has
been dynamically balanced, make an identifying
mark on the propeller hub and a matching mark on
the engine flange to make sure of proper orientation
during re-installation to prevent dynamic imbalance.
