Propeller Owner’s Manual
139
INSTALLATION AND REMOVAL
61-00-39
Page 3-58
Rev. 17 Apr/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
118F (61-10-18) AND 132A (61-10-32).
WARNING 3
: MAKE SURE THE SLING IS RATED UP
TO 800 LBS (363 KG) TO SUPPORT THE
WEIGHT OF THE PROPELLER ASSEMBLY
DURING REMOVAL.
(2) Cut and remove the safety wire on the propeller
mounting bolts.
(3) Support the propeller assembly with a sling.
NOTE 1: Supporting the propeller with the sling may be
delayed until all but two mounting bolts and
washers have been removed to allow rotating
the propeller for ease of bolt removal.
NOTE 2: 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 ensure
proper orientation during re-installation to
prevent dynamic imbalance.
