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Myford quick change gearbox bush wear !

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C J07/03/2018 18:56:03
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113 forum posts
86 photos

Bush from the right of the box.

Is this normal ?c0b9b22e-dbdf-4107-b25a-1a4d20d0b868.jpeg

KWIL07/03/2018 19:07:43
3681 forum posts
70 photos

Looks worn out, identify from Myford Parts List?

**LINK**

David George 107/03/2018 23:11:04
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2110 forum posts
565 photos

Looks like wrong material it looks like brass not phosphor bronze.

David

Neil Lickfold08/03/2018 01:12:53
1025 forum posts
204 photos

That can happen if the box does not have oil in it.

C J10/03/2018 18:54:12
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113 forum posts
86 photos

I've now bought a replacement and the worn bush on the left is definitely a different colour to the Myford bush on the right?

What might have some bearing on the wear (no pun intended) is that when I got the lathe home I noticed the lead screw was going tight and loose when rotated, and when I undid the bracket near the tailstock the lead screw sprung down about 5mm and became free rotating, and I think this misalignment was caused by the quadrant which sticks out underneath the end of the quick change gearbox getting a nudge upwards at some time.

How long it has been like that I don't know but I think the misalignment could have been a factor in the wear on the bush.

img_5814.jpg

 

Edited By C J on 10/03/2018 18:56:52

Edited By C J on 10/03/2018 18:58:18

Edited By C J on 10/03/2018 19:01:28

Edited By C J on 10/03/2018 19:01:54

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