Hartzell HC-E4 3 Series Owner's Manual page 219

CAUTION:
(5) If there is a blockage in the threaded hole where the
lubrication plug was removed (ex. hardened grease),
bend a piece of safety wire and use the bent end to
loosen the blockage.
CAUTION:
(6) A label is normally applied to the propeller to indicate the
type of grease previously used. Refer to Figure 6-2.
(a) This same grease type should be used during
re-lubrication unless the propeller has been
disassembled and the old grease removed.
1 It is not possible to purge old grease through
lubrication fittings.
2 To completely replace one grease with another,
the propeller must be disassembled and cleaned
in accordance with the applicable overhaul
manual.
THIS PROPELLER WAS
LUBRICATED WITH _____________
THIS GREASE MUST BE USED ON
ALL SUBSEQUENT LUBRICATIONS.
MAINTENANCE PRACTICES
Propeller Owner's Manual
USE CARE NOT TO DAMAGE THE
THREADED HOLE WHEN REMOVING A
BLOCKAGE.
USE ONLY HARTZELL PROPELLER INC.
APPROVED GREASE. DO NOT MIX
DIFFERENT SPECIFICATIONS AND/OR
BRANDS OF GREASE EXCEPT AS
NOTED IN THIS SECTION.
Lubrication Label
Figure 6-2
147
LABEL A-3594
61-00-47
Rev. 16 May/20
Page 6-9