Myford ML10

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Myford ML10

This topic has 10 replies, 5 voices, and was last updated 9 May 2020 at 18:07 by William Grayling.

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8 May 2020 at 18:29 #470168
William Grayling
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@williamgrayling54365
I need to replace the right hand oilite bush on the lead screw of my ML10 as it was damaged by the previous owner. However, the Mills pin must be removed first but this has been punched in flush with the casting. Can someone advise me the best way to remove the pin?

Bill
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8 May 2020 at 18:29 #33588
William Grayling
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@williamgrayling54365
Mills pin removal
9 May 2020 at 07:52 #470275
DiogenesII
Participant
@diogenesii
..a tapered pin fitted into a blind hole? ..surely the little end must have access for removal, a bush is a service item..

Hopefully a '10 owner will have an answer, if not a photo or even sketch of the parts would be useful, as it's hard for those not familiar with the machine to envisage how the assembly might be arranged..
9 May 2020 at 08:08 #470282
Clive Hartland
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@clivehartland94829
Item. 3 on the drawing, detailed as a Mills pin.type GPS. 3/16" dia. x 1"

I will have a look later and come back,
9 May 2020 at 09:04 #470289
Redsetter
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@redsetter
I think you will find that the drilling for the pin passes through the bearing housing, and then through the front face of the bed, so that in theory at least, the pin can be punched right through.

My ML10 is certainly like this, but please check yours before trying it.
9 May 2020 at 09:57 #470300
not done it yet
Participant
@notdoneityet
Posted by DiogenesII on 09/05/2020 07:52:44:

..a tapered pin fitted into a blind hole? ..surely the little end must have access for removal, a bush is a service item..

Hopefully a '10 owner will have an answer, if not a photo or even sketch of the parts would be useful, as it's hard for those not familiar with the machine to envisage how the assembly might be arranged..

They are not tapered, surely? Fluted from parallel I would guess. A cheaper production method than precision dowels, I expect.

Not a myford but any positional dowels on my machine can be removed either by tapping out, or through, the hole.
9 May 2020 at 11:27 #470331
William Grayling
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@williamgrayling54365
I am new to ‘Forums’ and am amazed at the kind people who are willing to help me with my problem, so thank you all!

Firstly, the Mills pin is straight sided so should be able to be punched through or at least into the shaft hole. I am reluctant to lift the bed to find out if there is a hole through but it makes good sense to have one. However, the oilite bush is not drilled through so I would need to remove it first. When the bush is out I will be able to see if there is a hole in the other side of the casting. However, removing the bush with the pin still in place will be difficult, I have tried it with a homemade puller without success and the use of a drift with a large hammer fills me with horror in case I damage the casting!
9 May 2020 at 11:50 #470336
Redsetter
Participant
@redsetter
William, if you poke a finger through the rectangular hole at the tailstock end of the bed, you should be able to feel the inner end of the pin hole.

If it is the original pin in the original hole it goes under the bush, not through the centre.

Edited By Redsetter on 09/05/2020 11:50:52
9 May 2020 at 12:20 #470347
DiogenesII
Participant
@diogenesii
Posted by not done it yet on 09/05/2020 09:57:49:

Posted by DiogenesII on 09/05/2020 07:52:44:

..a tapered pin fitted into a blind hole? ..surely the little end must have access for removal, a bush is a service item..

Hopefully a '10 owner will have an answer, if not a photo or even sketch of the parts would be useful, as it's hard for those not familiar with the machine to envisage how the assembly might be arranged..

They are not tapered, surely? Fluted from parallel I would guess. A cheaper production method than precision dowels, I expect.

Not a myford but any positional dowels on my machine can be removed either by tapping out, or through, the hole.

Quite so, NDIY. Apologies…
9 May 2020 at 12:40 #470352
not done it yet
Participant
@notdoneityet
No apols needed. You will have a PM shortly.
9 May 2020 at 18:07 #470412
William Grayling
Participant
@williamgrayling54365
Thanks to the excellent advice I have received, the job was done in a few minutes and the lathe is now ready to be put back together again!
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