[modeleng] Re: Damaged 4 jaw chuck
- From: "R.L. Roebuck" <rlr20@xxxxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Fri, 17 Dec 2004 08:26:16 +0000 (GMT)
Hi there Dennis,
Just to confirm - has use of the allen key caused the screws to split so
that their sides are being forced outwards and are jamming in the threads?
Yours,
Rich.
On Thu, 16 Dec 2004, Dennis Rayner wrote:
> Hi all,
>
> I have damaged the 4 jaw chuck which came with my very secondhand, very
> old ML7. The chuck didn't have a key - only an allen key and (I know I
> shouldn't have) I put a 12" length of copper tube over the key to make sure
> that the item being held wouldn't move.
>
> Now all 4 adjusting screws are very tight to turn, making it very difficult
> to feel just how much I am tightening the grip. If I remove the jaws, the
> screws are still quite stiff to turn so it seems I have damaged them rather
> than the jaws. I have spoken to the (very helpful) spares dept at Myford
> quoting all the ID I can get off the chuck and backplate in the forlorn hope
> that I might still get the screws but to no avail.
>
> The only thing I can now think of is to run the screws in and out using
> my cordless drill with some Valve Grinding Paste on the threads. Drastic I
> know but I wonder if anyone can think of a better approach?
>
> Christmas greetings to the group.
>
> It's fun to belong!
>
> Dennis
>
>
>
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