Air Propeller Blades Substitution Procedure – Composite Carbon Fiber Prop

Contur^® – The intelligent propeller made of Carbon Fiber

	Air Propeller Blades Substitution Procedure
	1. Flange Removal
	Unscrew the bolts Remove the flange


	2. Blades Removal
	Turn the propeller on the opposite side Using a punch, hit in the hole situated near the blade root in order to slide it out If the holes are not present, use a piece of wood and hit near the blades root in order to slide it out.


	Make the same operation for all the blades


	3. New Blades Preparation
	Put the new blade in the correct position without forcing The blade root must be on the same plane of the hub


	If the blade root plane is a different respect to the hub plane, remove the blade and check the contact points (some polishing on the root) Sand the contact point with sanding paper P24 Repeat the above operations in order to find the correct blade position


	Number the blade roots and the corresponding hub slots
	4. Blades and Hub Slots Preparation
	Clean the slots with acetone Spread some grease on the external parts of the hub slots Put a mold release film inside the hub slots Spread some grease on the external sides of the blade root



	5. Filling Mixture Preparation
	Mix the catalyst (VANTICO HY 2404) with the base (VANTICO RENGEL SW 404) using a weight ratio of 1:10 (25:250 g for 5 blades)


	The best room temperature for the application is 20° C. If the room temperature is higher (around 30° C) the application time is reduced
	6. Mixture Application and Blades Fixing Procedure
	Apply the mixture on the hub slot Apply the mixture on the blade root


	Put the blade root in the hub slot (using the correct numbering) Hit the blade root in order to achieve the correct position Remove the mixture from the upper part of the hub Repeat the above operation for all the blades Fix the flange by the bolts


	After 30 minutes, remove the filling mixture excess with a chisel The propeller will be ready after a curing time of 24 hours