The two concentric jog wheel plastic caps on the 2480 appear to be a bit harder than the single one on the 2000 to remove from the spindle pot. I need to replace the board it sits on. Is there a trick, or just use a little force to remove it? There's no clip, trick or similar that needs to be released? I looked at the Service Manual but only a detached cap was displayed on the exploded view, so not really helpful.