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Ml2

Spindle removal

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David Herrington06/05/2021 19:22:00
3 forum posts

Hi I have just bought a ml2 for a restoration project and I want to strip down the headstock, I have removed the grub screws from the pulley and bull gear and removed the threaded collar on the left hand side and undone the top clamp screws, with a soft mallet I tapped the left hand end to drive out the spindle , it moved about 5 mm that’s all, any ideas please

roy entwistle06/05/2021 20:04:03
1716 forum posts

Is there by any chance another grub screw in either of the holes that you have removed one from ?

David Herrington06/05/2021 21:01:52
3 forum posts

Roy

i have checked and there are no more grub screws in the holes, the large gear wheel spins freely but the pulley and small gear does not spin

Lee Rogers06/05/2021 21:07:44
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203 forum posts
Posted by roy entwistle on 06/05/2021 20:04:03:

Is there by any chance another grub screw in either of the holes that you have removed one from ?

Spot on from Roy . On any old machine always check for a second grubscrew. Clean anything that may conceal a taper pin and touch it over with a marker pen, wipe the ink off and look for a tell tale mark is another regular check(not your problem here though I guess).

Robert Atkinson 206/05/2021 21:19:37
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1891 forum posts
37 photos

I had problems removing the spindle from my ML2. The issue turned out to be somone had tightened the pointed grub screw in the bullgear away from the intended recess and raised burrs on the spindle. not much you can do about it other than brute force or miving the spindle / gear positions back to where they were and using some kind of long end cutting tool down the grubscrew hole to remove the burrs.
Mine scored the front bearing on the way out.

Robert G8RPI.

David Herrington06/05/2021 21:44:41
3 forum posts

Hi it looks like the same thing has happed here, the pointed grub screw has damaged the shaft. I will have to remove the damage before proceeding, can you tell me is the small gear part of the pulley assembly

Georgineer07/05/2021 11:24:34
652 forum posts
33 photos
Posted by Robert Atkinson 2 on 06/05/2021 21:19:37:

I had problems removing the spindle from my ML2. The issue turned out to be somone had tightened the pointed grub screw in the bullgear away from the intended recess and raised burrs on the spindle. not much you can do about it other than brute force or miving the spindle / gear positions back to where they were and using some kind of long end cutting tool down the grubscrew hole to remove the burrs.
Mine scored the front bearing on the way out.

Robert G8RPI.

Exactly this. I had the same on my ML4.

George B.

Robert Atkinson 207/05/2021 18:47:53
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1891 forum posts
37 photos
Posted by David Herrington on 06/05/2021 21:44:41:

Hi it looks like the same thing has happed here, the pointed grub screw has damaged the shaft. I will have to remove the damage before proceeding, can you tell me is the small gear part of the pulley assembly

Yes it is.

pulley.jpg

That is a replacement for my original fibre one which has split.

HTH,

Robert.

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