The 2 blade Varifold folding sailboat propeller is relatively simple to install and simple to service. All folding propellers require the propeller to be built up on the shaft, this is due to the propeller nut being hidden in the folding mechanism. This process is simple to do and full documentation and phone support is available to ease this process. For the yearly service, Varifold requires very little care. The propeller is a greaseless system and like all of our propellers, over-engineered to give an exceptionally long service life. A typical yearly service would involve cleaning the propeller of marine fouling and re-applying any coatings used to protect the propeller, then replace the anodes as needed. The propeller should not require a rebuild during its life, however should any unforeseen issues develop with the propeller we have a full US service center able to handle any repair or re-balance needed. Finally it is important to note that as with all the propellers they will be prone to galvanic corrosion and care must be taken to ensure that they are protected using anodes as mentioned above. The general idea is that the corrosion caused by stray current will be directed to the ”sacrificial” metal rather than the expensive propeller. In combining anodes with a good coating system, not only will you significantly extend the life of the propeller but you will keep it at its lowest drag value possible, making your sailing more enjoyable.