After the ride it was time to begin the servicing and pull down. Removed the forks and opened the outer leg and drained the oil.
Very low fluid volumes in the outers (well below the 300ml minimum spec). Only leg had around 225ml where the other had around 235ml. Oil was a bit contaminated. After draining the oil, placed the forks in the vice to undo the 19mm nut that holds the cartridge in the leg.
One the nut is removed the cart will pull straight out the other end, and the spring will also come out at the same time.