Propeller Owner’s Manual
115N
INSPECTION AND CHECK
61-00-15
Page 5-23
Rev. 24 Dec/20
(c) Grease Leakage - Probable Causes
(-1, -2, -4 propellers only):
1
Loose/defective lubrication fitting
2 Damaged blade shank to hub O-ring seal
3 Damaged hub seal (at hub parting line)
4
Damaged hub/engine flange interface O-ring
5 Cracked hub
(d) Grease Leakage - Probable Causes (-5 propellers only)
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