TM 1-1500-204-23-5
a. Propeller hub and dome assembly. The
propeller hub and dome assembly of propellers provided
with internal oil controls requires no preservation other
than that received during engine run when engine is being
preserved. When removing a propeller at a time other
than engine preservation, internal portions of hub and
dome will be coated with a mixture consisting of 25
percent corrosion preventive, MIL-C6529, type II, and 75
percent engine lubricating oil, MIL-L-6082, grade 1100.
Excess oil will be drained from hub and dome, and all
openings sealed with greaseproof barrier material, MIL-B-
121.
b. Propeller blades. Prepare metal propeller
blades for storage by coating all surfaces except rubber
parts with a soft film compound such as MIL-C-16173,
grade II. Blades shall then be wrapped in waterproof
barrier material, MIL-B-131, Class 2. A suitable wooden
container that provides sufficient protection from handling
and for securing blades in a fixed position shall be used to
contain blades.
Figure 2-13. Typical Electrical Deicing System
2-20
