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Drummond Headstock

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Alan Worland24/07/2011 21:38:39
247 forum posts
21 photos

Today (after clearing the bench again!) I made a start on cleaning up the new lathe
It has surprised me how easily the fixings came apart - no struggling.
When it came to the headstock spindle I made a 'C' spanner to fit and loosen the bearing ends and have removed the end float collar, but the spindle will only move forward a few thou, as though it is being stopped by the backgear - which I am sure it is.
Having no drawings for the assembly and not wishing to damage anything I am seeking advice on the removal process!
The bed I have cleaned with wire wool and parafin and while it appears unworn and undamaged it just doesn't look 'bright'
Is it ok to go over it with some fine wet & dry on a block? or just keep on with the steel wool?
 
Alan
The Merry Miller24/07/2011 21:54:11
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484 forum posts
97 photos
 
 
Have you checked whether there are any grubscrews securing the stepped pulley to the spindle, there certainly was on my old Drummond headstock.
Even if it was keyed on there should be some method of preventing the stepped pulley from sliding on the key.
I'm pretty sure mine wasn't keyed anyway.
ady25/07/2011 01:18:21
612 forum posts
50 photos
I wouldn't bother scrubbing the bed up, it will come up fine after a couple of weeks of use.
Keep it clean and oiled and it will soon sort itself out.
 
I've never needed to remove my spindle.
Take the guards and the backgear off first, strip all the easy stuff off the unit.
These kind of bits fit back on really easily and would appreciate a clean and an oil.
 
The headstock is pretty complicated compared with the rest of the lathe, it's a solid casting with some pretty serious precision parts.
 
There is the bullgear at the front and the engagement pin, which always drives and is always engaged/keyed to the spindle, while the pulleys are locked in/out of engagement via the bullwheel pin.
 
You can undo grubscrews on the pulley but the bullwheel is a bit of a mystery, my guess is it has a keyway and the spindle gets tapped out from the back.
 
Two sources I can think of.
 
These guys will DEFINITELY know what to do.
Sign up and ask them.
 
And of course there's always tony at lathes.co.uk
 
ady25/07/2011 01:28:20
612 forum posts
50 photos
There's a guy who stripped down an old M-series here.
 
 
Alan Worland25/07/2011 22:09:46
247 forum posts
21 photos
Thanks for your replies.
The only grub screw in the pullies that I can see is to be removed for oiling of the bearing within, cant find any other screws.
I hear what you say about needing to dismantle it, but this is really mucky - dirt & dust from the last 40 years and it would definately benefit from a serious clean!!
Looking at the photos from the guy who stripped one down, it looks like the bull gear only drives on a single key? Perhaps it is just tight?
I shall follow through the links you gave.
 
Alan

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