FES Propeller Manual Version 1.11
November 2016
Page 10 of 10
9. Maintenance and repair
Note:
Fine cracks in center section of the propeller blade usually originate from the
inside of the blade, and extending through the paint and so are visible from
outside. These cracks might be radial or tangential. They should be
considered as serious issue.
1. Clean propeller if necessary with water.
2. Usually small stone nicks are unimportant as long as there is not obvious structural
damage. Scratches and nicks should be filled and protected during routine maintenance
with a coating of acrylic paint. Acceptable minor damages are described in section 8 of this
document.
3. Broken central section of the blades are not reparable and have to be replaced. Small
damages on the trailing edge or tips of the blades can be repaired by manufacturer or
qualified service.
10. Shipping and storage
1. If storage is required, it is recommended to use the original packing. If original
packaging is not available, store it in a horizontal position on a soft padding.
The propeller should not be stored close to heat source or in rooms with extreme changes
in temperature or humidity.
2. Careful packing is the best protection against damage during shipment. Especially the
blade tips and trailing edge should be sufficiently protected.
11. Revision history
March 2015
Initial release of manual, Version 1.0
November 2016
Updated version of manual, Version 1.1
November 2016
Information added, Version 1.11
