Propeller Owner’s Manual
147
INSPECTION AND CHECK
61-00-47
Page 5-20
Rev. 17 Sep/20
(c) Grease Leakage - probable causes:
1
Loose/defective lubrication fitting
2 Faulty seal at the blade socket between the
blade and the hub
a
Refer to a certified propeller repair
station with the appropriate rating for seal
replacement.
3 Leakage from the hub and beta rod interface
(if applicable)
a Over-greased hub
(1
) Refer to a certified propeller repair
station with the appropriate rating
for grease removal.
b Faulty seal
(1
) Refer to a certified propeller repair
station with the appropriate rating for
seal replacement.
4 Cracked hub
(d) Oil Leakage - probable causes:
1 Leaks between the hub and cylinder
a Faulty or missing seal between the hub and
the cylinder
(1
) Refer to a certified propeller repair
station with the appropriate rating
for seal replacement.
2 Leaks between the hub halves, beta rods and
hub
a Faulty seal(s) between the hub and the pitch
change rod
(1
) Refer to a certified propeller repair
station with the appropriate rating
for seal replacement.
