Standard modifications: Seal modification for biodegadable oil and for under water propeller replacement option
To be able to sail in US terretorial waters, your are obligated to use biodegradable oil in your thruster. Unfortunately it is not possible to just remove the existing oil and fill it up with biodegradable. All seals need to be suitable and completely clean to handle the oil. We supply the standard seal kits to replace the existing ones. If you need our service engineers to perform the work, also no problem.
Some of the HRP thrusters are equipped with deep sea seals. Most of these setups use the propeller to hold the seal in place. This is a nice setup, but unfortunately it is not possible to exchange the propeller under water in this case.
We can modify the seal setup and exchange the deep sea seal with a 3 lip seal configuration