Maintenance Practices - Hartzell HC-D2MV20-3 Owner's Manual And Logbook

HARTZELL PROPELLER OWNER'S MANUAL
MAINTENANCE PRACTICES - CONTENTS
1. Cleaning ................................................................................. 6-3
A. General Cleaning ............................................................... 6-4
B. Spinner Cleaning and Polishing ......................................... 6-5
2. Lubrication .............................................................................. 6-6
A. Lubrication Intervals ........................................................... 6-6
B. Lubrication Procedure ........................................................ 6-8
C. Approved Lubricants ........................................................ 6-12
D. A-38( )Thrust Bearing Lubrication ................................... 6-12
3. Corrosion Inhibitor ................................................................ 6-13
A. Application Intervals ......................................................... 6-13
B. Application Procedure ...................................................... 6-15
4. Aluminum Blades .................................................................. 6-16
A. Important Information ....................................................... 6-16
B. Repair of Nicks and Gouges ............................................ 6-17
C. Repair of Bent Blades ...................................................... 6-20
5. Blade Paint Touch-Up ........................................................... 6-20
A. Important Information ....................................................... 6-20
B. Paint ................................................................................. 6-21
C. Procedure ........................................................................ 6-22
6. Dynamic Balance .................................................................. 6-25
A. Overview .......................................................................... 6-25
B. Inspection Procedures Before Balancing ......................... 6-26
C. Placement of Balance Weights for Dynamic Balance ...... 6-27
7. Maximum RPM Check (On Ground) ..................................... 6-29
A. Overspeed/Underspeed ................................................... 6-29
8. Tachometer Calibration ......................................................... 6-30
A. Important Information ....................................................... 6-30
B. Tachometer Calibration .................................................... 6-31

MAINTENANCE PRACTICES

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Rev. 5 Apr/23