Side-power SP55 S bow thruster oil change 2017

It is time to change the gear oil in my Sleipner bow thruster gear leg. If there is water in the oil it will stay in the bottom of the drive and over time destroy the gearsystem, the oil must be changed every 2. years to ensure propper function. 1. suck out the oil of the reservoir 2. let the out the rest by removing the screw in the bow leg 3. fill new oil in the top and check level when the air has drained Oil : EP90 or SAE90 Amount : 300-400 ml.