Re: bridgeport interact II head rotate

Thanks guys. We'd found the pin and pulled it out to what felt like a detente, but alas, we ended up removing the pin to get vertical again.

Thanks, Chuck

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "cnc_joker" wrote:
>
> There is a pin that you can pull out to enable 360 degree rotation
> but the worm gear is not strong enough to rotate it all the way around.
> When the head is to one side it puts a lot of force on the worm
> gear and can break it. You should releve some of the load by
> lifting the head when it is horizontal. I lift with one hand
> and rotate the worm gear with the other hand.
>
> The pin keeps the head within the range where the worm can be used
> alone to adjust the head. Outside of that range you should
> lighten the load by lifting.
>
> Pete.
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Michael Fagan wrote:
> >
> > I don't know about the 4j, but most Bridgeport machines use a worm gear for
> > head rotation, no hoist necessary. They do usually have a safety pin that
> > limits the rotation to 45 degrees each way until you pull the pin.
> >
> > Sent from a mobile device.
> > On Jan 18, 2013 12:40 AM, "ebiz_59" wrote:
> >
> > > **
> > >
> > >
> > > We are feeling pretty dumb. The our interact II bridgeport (4J head) was
> > > shipped to us with the head upside down. We have lowered the table so we
> > > could rotate the head and we get it to move about 30 degrees (in either
> > > direction), but then it seems to come up against a stop. We've lifted with
> > > a cable comealong, but it really seems to come up against something solid.
> > > Surely that unit wasn't built in a way to require us to remove the ?600 lb?
> > > head just to turn it over, was it??
> > >
> > > Any tricks? What are we missing?
> > >
> > > Thanks,
> > >
> > > Chuck
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>