Cydrome Leader wrote:
Jim Wilkins wrote:
"Cydrome Leader" wrote in message
news
I've been fussing for way to long to take apart a real Jacobs made
in USA
41BA 3/8" keyed drill chuck. Their website says to close the jaws
1/2 way
and press on the jaws while pressing against the botttom of the
shell with
clearance to allow the inside to pop out.
Tried a 1-1/2 or 2 ton arbor press. No luck. Tried a vise. No luck.
Made a
fixture from steel channel and 2x 7/16x20 bolts torqued as hard as I
can
with wrenches. They bent but the thing won't break free. Tried
heating it,
squirting the insides with pb blaster- no dice.
I've seen some poeople press on the jaws while others press on the
body
part with the key holes that the jaws slide on. Does this matter at
all?
Even bigger chucks see to come apart easier from watching some
youtube
videos. What the heck would be holding this thing together to hard?
Could probably take it to a place with a hydraulic press, just to
see it
break apart, but I'm pretty sure this will cost as much as an exact
replacement.
Any tips?
http://wiki.vintagemachinery.org/Jac...ckRebuild.ashx
Tried this, less the partical board as the force I'me dealing with by far
has to exceed what's going on there.
This thing started to bend, which is why it's shored up on one side by the
jaws. Yup, they're pressing into the steel and leaving marks too.
http://www.panix.com/~presence/jacobs-jig.jpg