Sounds good. My only problem is that I don't see any obvious way to rotate the ring off...there are no groves or treads that I can exert pressure on to rotate, as a desktop mouse usually has, or any obvious way to get my fingernails or a screwdriver under the ring, without my seeming to risk breaking it...or is this in some documentation I don't know about? It doesn't seem to be in the service manual, that I can tell, or the user manuals.... TIA, > You should just be able to rotate and remove the retaining ring and > trackball. Once those are out of the way you can clean the rollers. > FYI, I had a 280c that exhibited that problem, turns out oneof the > plastic rollers had disappeared so I bought a replacement assembly for > $10. > > ~ Larry, Darn Good Design. > > > On Tuesday, July 22, 2003, at 09:52 AM, Bill Judson wrote: > > [...] > > > > While we're on the subject of trackballs, anybody have any advice on > > how > > to open up the trackball assembly itself? > > > > I have a 270c whose trackball seems to have lost its grip, especially > > when > > moved vertically -- often it will just spin & spin without grabbing > > whatever it is it is supposed to grab. I imagine that it's like a > > desktop > > trackball, in that there are little rollers that occasionally get > > gunked > > up, as with mice. > > > > Maybe I'm wrong; I have the service manual, but there doesn't seem to > > be > > anything specific about how to get into & under the trackball itself > > (as > > opposed to removing the assembly as a whole). Thanks, > > > > -- > > Over, > > > > Jutso > > > > http://pages.ripco.net/~jutso/ -- Over, Jutso http://pages.ripco.net/~jutso/