"shedfull" wrote in message
oups.com...
Ok I'm stuck, I want to remove the chuck from my lathe,a Colchester
Master Mk 2, Clausing 80000? this has the American taper L0 secured by
a large threaded collar.

I've read the manual, no help, searched the groups, nope.

I don't want to break anything so I thought I'd ask.

People I've spoken to have said use the large c spanner (got that) and
shock the collar loose, but the spindle & chuck just turn, the collar
doesn't loosen. Tried pieces of wood to chock the chuck, bars in chuck,
you name it.

I don't want to put the lahte in gear and heave 'cos it might break the
gear etc.

Ideas ?

TIA

Lee


You should be able to use the lowest gear with no fear, but if you're
concerned, block the chuck with a 2 x 4 end to end, from one of the jaws to
the bed, with the machine in the lowest gear, then knock the spanner with a
*soft* (I recommend a Nupla, they're the best there is) hammer. As I
recall, they're a right hand thread (it's been over 40 years since I last
changed a chuck on an L type mount), so you want to turn the top of the
collar towards the rear of the machine.

Let us know!

Harold