Attach the coarse abrasive to the sanding machine. If the machine has variable pressure, set it to high pressure. Make sure the sanding drum is raised from the floor before starting the machine. Start the motor. Slowly release the sanding drum towards the surface.
Tip: Move softly. It’s important that the sanding drum is always lowered and raised while the machine is moving. Imagine an airplane softly landing and lifting.
Start to the left of the room and sand diagonally in the direction of the wood. Walk slowly forward and lift the drum gently as you reach the wall. Lower the drum again and return in the same path that you sanded. Lift the drum and create a new path to the right. Overlap about 5-10 cm on the previous path.
Once the whole section has been sanded, turn the machine around and sand the other end of the room. Repeat this process until the floor is flat and all residues from the old coating have been removed. Always empty your dust bag before it is completely full to ensure the most optimal dust collection.