[Andrew Rowe]

The flat bladed screw driver either side ,pops it off, works every time. To reinstall press on with a finger to the centre, making sure you have it pointing at the right location. Also be careful handling the numbers on the barrel as they tend to flake off if touched, greese all the little worm gears to, as they are nearly always seized, other wise you will end up breaking the speedo cable if you miss doing these gears.