Propeller Owner’s Manual
139
MAINTENANCE PRACTICES
61-00-39
Page 6-7
Rev. 17 Apr/20
B. Spinner Cleaning and Polishing
(1) Clean the spinner using the General Cleaning
procedures in this section.
(2) If an aluminum spinner dome is installed, polish the
dome (if required) with an automotive-type aluminum
polish.
2. Lubrication
(Rev. 4)
CAUTION:
INSTRUCTIONS AND PROCEDURES IN
THIS SECTION MAY INVOLVE PROPELLER
CRITICAL PARTS. REFER TO THE
INTRODUCTION CHAPTER OF THIS
MANUAL FOR INFORMATION ABOUT
PROPELLER CRITICAL PARTS. REFER TO
THE ILLUSTRATED PARTS LIST CHAPTER
OF THE APPLICABLE OVERHAUL MANUAL(S)
FOR THE IDENTIFICATION OF SPECIFIC
PROPELLER CRITICAL PARTS.
A. Lubrication Intervals
(1) The propeller is to be lubricated at intervals not to
exceed 400 hours or at 12 calendar months, whichever
occurs firs
t.
(a) If the aircraft is operated or stored under adverse
atmospheric conditions, e.g., high humidity, salt air,
calendar lubrication intervals should be reduced to
six months.
(b) If the propeller is leaking grease, the lubrication
interval should be reduced to 100 hours until the
grease leak issue is resolved.
