Abstract: An articulated arm assembly adapted to carry machine means comprising a first member, a second member pivotally connected at one end thereof to said first member for pivotal movement thereabout, a third member extending outwardly from another end of said second member, said third member including means for connection to said machine means, means for adjusting the position of said machine means.

Abstract: A brake lathe station has an on-vehicle brake lathe and a lift with support posts for raising a vehicle. A support structure supports the lathe while allowing it to be moved with respect to a horizontal plane about the vehicle to assist the lathe operator in positioning the lathe with respect to wheel hubs of the vehicle. The lathe is preferably connected to the support structure by an adjustable coupling which allows vertically tilting a lathe rotation axis of the lathe, as well as allowing rotation of the lathe substantially about its lathe rotation axis. The lathe can also be moved with respect to a vertical plane. The lathe can be floated with respect to the support structure while the lathe is mounted on the wheel hub. The coupling can be designed to allow attaching a dolly to the lathe while it is still supported by the support structure.