Thread: New / Old Lathe Headstock Issue

[QUOTE=Backyard Shed;2244222]I just got back from pulling the spindle and bearing out again.
Where in Qld are you?
Rgds,
Crocy.

Are you sure it has the right size bearing?
The older teknatools had no locking cir clip but different size bearings and a certain order for removal.
Makes it hard without a manual.
What is the year of manufacturing?

I have contacted a mate in NZ about sourcing a manual or some insight on your problem. If anyone knows it would be him.

Many moons ago I sold Record Power Lathes and the pulleys used a grub screw to lock down on the shaft as in your picture, but there were always two, one which locked down on the shaft and then another which locked down on the the first grub screw, same principle as two nuts locking together on a bolt. This should prevent the pulley from moving on the shaft.

Terry Scott (Timberly Ltd) is well known in NZ wood turning and is a very helpful bloke.

Terry says "The original comet has the same specks as the Nova 3000, apart from the spindle thread."

The Nova 3000 manual is available here - NOVA Discontinued Products : Teknatool International (freshdesk.com)

If you go to page 25 note items 12 & 13 a circlip and a wire form circlip. Now you also have a much better chance of sourcing a solution with a Google search on "Nova 3000."

A further search has located these

Awesome Mobyturns...

Thanks for sourcing this info from someone with the first hand knowledge.

I went to a local bearing place yesterday and discussed with the guy there. I ended up with a 30mm circlip for the spindle end for use even as a temp measure. I didnt want to loctite the old bearings in as I have had them in and out a number of times and I didnt know how long they would last. Didnt want to buy new bearings at this stage as I still thought I may have a large piece of expensive scrap metal. I put a small groove in the spindle with a metal lathe just before the thread starts and put it together this morning.

I now have a lathe that almost works normally. Well enough to turn up a small widget this morning.

I will follow up on the nova 3000 tip and see if I can get the last bit of play out.

Thanks to all for your insights, pictures and similar manuals!

I believe they started manufacture in late 90's

I live on the Sunshine Coast.

I have a shed fairly full of older machines that I have purchased second hand with a view to fixing them up and getting them working as intended. This has been the only one that has caused this much grief. I think I have had a good run!

Great to hear you are up and running. Terry is a great bloke and always helpful.

A couple of things that don't seem to be right with your lathe,

• the "damage" on the shaft from the grub screws that secure the pulley,
• possibility that the bearings are not the original spec, perhaps a wider bearing than original. i.e. closest fit available?

Makes me think that its been "maintained" before.

It does say in the instructions that a puller is required to remove the bearings from the spindle. As your spindle slides through the bearing when you apply pressure with the tailstock the fit is obviously not right. Even if the fit was right you would expect there to be a circlip or some retainer behind the smaller bearing at the pulley end so that everything is locked in place securely and not just relying on the press fit. As your earlier photo shows, there is no provision for such a clip.

Spindle_3.JPG