Re: Kitagawa ho-8 chuck

One of my Okumas has an HOS-10 chuck. I measured the jaw movement and
its right on 1/4". When the chuck is open the master jaws are sitting
1/16 below the OD of the chuck body, and when closed with nothing in
the chuck they're 5/16 below the OD. Your 8" chuck might have
slightly less travel, but it should be close to this amount. Check to
make sure the threaded connections between the drawtube and the back
of the chuck are fully engaged and haven't worked their way loose over
time. Unless you have the factory tool, you'll need to make a tool
that looks like a tube with a couple ears on the end to put into the
hole in the chuck and engage the slots of the connector nut to tighten
it. If it has worked loose it can bottom the chuck opening travel in
the chuck itself and then bottom the actuator cylinder itself in the
closed position, and take away part of your jaw travel in the process.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turboking@j..."
<turboking@j...> wrote:

>
> Hi.
>
> I have a ikegai lathe(fx20n) with a kitagawa HO-8 chuck . I

yanked out the control and used gecko drives with stepper motors
from series 1 cnc mills . I have no complaints(must of profiled over
1000 aluminum wheels) with the system. I am upgrading the jaws(from
aluminum to steel). I noticed i only have .125 of jaw movement. Is
this the norm for this chuck?

>
> Carl
>
> Long Island Rim
> http://www.angelfire.com/biz/wheelrepair