Hartzell HC-E3YR-7 Owner's Manual page 194

WARNING:
CAUTION:
(6) Aeroshell greases 5 and 6 both have a mineral oil base
and have the same thickening agent; therefore, mixing of
these two greases is acceptable in Hartzell Propeller Inc.
propellers.
(7) A label (Hartzell Propeller Inc. P/N A-3594) is normally
applied to the propeller to indicate the type of grease
previously used. Refer to Figure 6-3.
(a) This grease type should be used during
re-lubrication unless the propeller has been
disassembled and the old grease removed.
(b) It is not possible to purge old grease through
lubrication fittings.
(c) To completely replace one grease with another, the
propeller must be disassembled in accordance with
the applicable overhaul manual.
MAINTENANCE PRACTICES
Propeller Owner's Manual
WHEN MIXING AEROSHELL GREASES 5
AND 6, AEROSHELL GREASE 5 MUST BE
INDICATED ON THE LABEL (HARTZELL
PROPELLER INC. P/N A-3594) AND THE
AIRCRAFT MUST BE PLACARDED TO
INDICATE THAT FLIGHT IS PROHIBITED IF
THE OUTSIDE AIR TEMPERATURE IS LESS
THAN -40°F (-40°C).
USE HARTZELL PROPELLER INC.
APPROVED GREASE ONLY. EXCEPT IN
THE CASE OF AEROSHELL GREASES
5 AND 6, DO NOT MIX DIFFERENT
SPECIFICATIONS AND/OR BRANDS OF
GREASE.
Lubrication Label
Figure 6-3
61-00-36
136
Rev. 2 Feb/17
Page 6-10