|
Posted by Emimec on January 21, 2008, 11:32 am
Please log in for more thread options
>
>>mark@ems-fife.co.uk wrote:
>>
>>> > Hi All
>>> >
>>> > I've just bought a secondhand Meddings Drilltru pillar drill which
>>> > looked OK and and has no detectable slop at the chuck.
>>> >
>>> > When I got it home on the floor I tried it on all the speeds and
>>> > discovered a problem. On the highest speed I needed to put my foot on
>>> > the base plate to keep it still and it was quite noisy.
>>> >
>>> > On closer inspection I found that the quill pulley has been sleeved,
>>> > and
>>> > there appeared to be some runout. On dismantling I discovered that
>>> > the
>>> > shaft appears scored as though the pulley has been spinning (even
>>> > though
>>> > it is keyed).
>>> >
>>> > Can anyone suggest a way to refit the pulley and be sure it'll run
>>> > true.
>>> > I'd be grateful for any suggestions.
>>> >
>>> > Russell
>>>
>>> Mount the pulley on a mandril and recut the grooves true or press the
>>> sleeve out and rebore the pulley true and fit new sleeve.
>>
>>The problem is that the shaft is a mess. I've been thinking about
>>skimming the shaft but there's not a lot of meat on it as it's tubular
>>and it doesn't look as though there'd be much keyway left. I've been
>>wondering about building up the surface of the shaft but welding or
>>brazing seem likely to cause distortion of the splines on the inside.
>>
>>Russell
>
> Does the pulley need to slide on the shaft?
> If not, then maybe Loctite retainer will do the job, one of the
> gap-filling varieties. If the pulley is really sloppy, you'll need to
> find a way to secure it square to the shaft while the Loctite goes
> off.
> Metal spray or chroming the shaft might be another way, but might cost
> more than the machine is worth by the time it's been ground back to
> size?
>
> Tim
Couldn't you contact Meddings and buy new parts?
Bob
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
>
> I've just bought a secondhand Meddings Drilltru pillar drill which
> looked OK and and has no detectable slop at the chuck.
>
> When I got it home on the floor I tried it on all the speeds and
> discovered a problem. =A0On the highest speed I needed to put my foot on
> the base plate to keep it still and it was quite noisy.
>
> On closer inspection I found that the quill pulley has been sleeved, and
> there appeared to be some runout. =A0On dismantling I discovered that the
> shaft appears scored as though the pulley has been spinning (even though
> it is keyed).
>
> Can anyone suggest a way to refit the pulley and be sure it'll run true.
> I'd be grateful for any suggestions.
>
> Russell