Thread: Help with an old Teknatool TL1000

I have an old TL1000 lathe and needed to replace the bearings. Teknatool advice then was to remove the headstock, cut a spacer to fit accurately in the headstock and press the spindle out in a hydraulic press. Refitting was also done in the press, just remember to insert the belt while replacing the spindle. The bearings were a standard SKF bearing.

The operation was a complete success and the lathe is still working.
Jim

Not sure if this is any help, but I have a similar lathe and it is slightly different. I think yours might have already been modified but I am happy to be corrected on this.
For a start the switch on yours is a two part switch, where mine is a simple red rocker switch with a light that comes on when active. Yours doesn't look original to me.
Also the pulleys on mine are not of the V belt type but of the ribbed type with a ribbed belt.
Perhaps your lathe has already had some modifications and this is the problem.
It will be interesting to see if others have a lathe like yours. BTW I bought mine in the early 1990's.
Cheers
SG

Avery you'd thing the shaft would just slide out after undoing all the pulley locking screws etc


Edited Avery I think I have just noticed one bearing is sealed the other older type roller am I correct?

PP Jim in cutting a spacer is this placed between the pulley ends? (as you know young Dave has one)

Powderpost,

You have confirmed our theory. Bracing the casting will be a primary concern. I can't believe that this was standard procedure to replace the belt.

Thanks for your help.

Scribbly Gum

The power switch was replaced by our "in house" sparky as part of the refurb. of the machine. Anything else was done before we got to it. I don't know how old this beast is , but I would guess it is more like '70s than '90s

Wheelinround

That is what we all though too, until I suggested that under normal use of the lathe, with pressure from the tailstock over time, it would just push the headstock shaft through the bearings. There are no physical barriers to the lateral movement of the shaft. A more experienced man than me (an aircraft engineer, we let anyone into our shed) has suggested that the shaft might even be a "freeze fit" into the bearings.

It all seems just too hard to replace the damn drive belt.

A look at the Vicmarc site shows a similar setup, but they just suggest the tapered roller bearings tap out from the inside and the shaft slides out..

Thank you all for your advice.

I sold plenty of the TL1000 in the early 80's. I can't remember which way the shaft was pushed from the tailstock end or from the outer side. Your machine is one of the early models. Mine also has a "V" type belt.
Ray, the spacer is accurately cut to fit between the castings. I found it easier to cut the spacer a tad short and use a wedge to firm it up.
Jim

Originally Posted by powderpost

I sold plenty of the TL1000 in the early 80's.
Jim

If Pat had known that at your GtG and or Dave I know who'd have been assembling it pity Pat decided he'd get there early.

Jim is absolutely right.

A spacer is fitted and the shaft pressed out from the outboard end towards the t/stock end if I remember rightly.

To confirm this email, or phone John Ewart here: woodturninglessons.com.au

Remember when assembling to put an extra belt in, although I never had to replace mine but had to repair a few others that I sold.

Avery, just went down to the shed and found an old spindle and one of the old bearings. Attached is a photo of the shaft and bearing. It would appear it doesn't matter which way you press the shaft out. As you can see the centre part of the shaft is stepped up in diameter. The number of the bearing is written on the paper.
Hope this helps you.

Jim

Originally Posted by wheelinround

Avery you'd thing the shaft would just slide out after undoing all the pulley locking screws etc


Edited Avery I think I have just noticed one bearing is sealed the other older type roller am I correct?

PP Jim in cutting a spacer is this placed between the pulley ends? (as you know young Dave has one)

The bearing on the inboard side had the seal ripped out of it - one of the reasons we decided to replace the bearings. Both bearings appear to be the same , both ball bearings, not rollers,but of we have not , as yet, been able to measure them.

Originally Posted by

Jim is absolutely right.

A spacer is fitted and the shaft pressed out from the outboard end towards the t/stock end if I remember rightly.

To confirm this email, or phone John Ewart here: woodturninglessons.com.au

Remember when assembling to put an extra belt in, although I never had to replace mine but had to repair a few others that I sold.

Thank you ,

I will take your advice and that of Powderpost as definitive.

Thanks for the help.

Gees this place is good!

Originally Posted by powderpost

Avery, just went down to the shed and found an old spindle and one of the old bearings. Attached is a photo of the shaft and bearing. It would appear it doesn't matter which way you press the shaft out. As you can see the centre part of the shaft is stepped up in diameter. The number of the bearing is written on the paper.
Hope this helps you.

Jim

Hmmm,

we measured the shaft inside the headstock to be about 1mm less than the outer shaft. We could be wrong of course.

Nevertheless , it seems that bracing up the casting and pressing it out is the only way to go.

Thanks again for your help.

Gee this place solves some problems!

Thanks Jim I know Pat had work done on it before passing it onto young Dave we can hope it lasts.

HI Jim, I noticed that you have a head stock shaft for a Teknatool 1000. Am wondering if you will part with it and if you will how much would you want for it. If you can contact me on 0448 733 357 it would be greatly appreciated. Cheers Max

Hi Max,
Would you believe I sold the old TL1000 and all the bits that go with it only yesterday. Sorry mate.
Jim