I've got a drill chuck that's sticky, and would like to disassemble it. The chuck has a rubberized adjustment ring, and the usual
3/8"-24 threaded mount. There was no difficulty removing it from the drill (after I realized the retaining screw was Torx-20 and not hexagonal).
It's a 3/8" Jacobs HandTite model, and the Jacobs web site only gives takeapart instructions for other (keyed and precision) models.
Apparently, the body (in addition to the 3/8-24 thread) has a Torx-40 engagement region at the bottom of that thread. Probably the body is held by a Torx wrench while the main ring is removed.
The main base ring apparently cannot be pressed off (it doesn't protrude enough), but it seems to be pressed in place on a knurled body (not threaded).
Could the main ring unthread from the body? Maybe after heating to soften a threadlock compound? That'd explain the Torx feature of the body. Why does it look like the body is knurled, wouldn't that complicate assembly?