TDS 1/1 G.B.L Lathe cross slide feedscrew replacement.

All info relating to Viceroy machines - Lathes, sharpedge, drills etc...

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LesT
CNC Expert
CNC Expert
Posts: 117
Joined: Wed 11 Aug , 2010 14:17 pm
Hardware/Software: An old Viceroy with a half installed invertor drive,(when I can decide where to put the control pushbuttons I will wire it up properly)
A WMD25V mini mill.
Tractor, Bobcat 320, and Dumper truck.
7 sheds, about 5 (?) mowers. etc, etc.
Location: Scotland !

TDS 1/1 G.B.L Lathe cross slide feedscrew replacement.

Post by LesT » Tue 18 Apr , 2017 21:17 pm

I had a go at replacing the feedscrew on my Viceroy last weekend, it all went pretty well. The cross slide play is now about .005" maximum, fore and aft, but it takes a fair amount of pressure to get that figure.
I made a new collar to retain the screw, and put two 4mm grub screws in it, that made assembly a lot easier. I was worried about getting the locking pin in straight, I needn't have worried, the original one wasn't in straight anyway.
You have to lower the apron to get the new screw in because the thrust collar won't pass by the cross slide drive gear, with the apron screws removed and the apron casting moved a fraction off line the screw slides in easily.
I noticed the new thrust bearing was slightly thicker than the original because there is a slightly larger gap between the setting dial and the saddle body. Perhaps the old bearing was worn ?
I took some pictures to help anybody else doing the same job.
Attachments
IMG_0128_1.JPG
New screw in position.
IMG_0128_1.JPG (64.63 KiB) Viewed 3328 times
IMG_0125_1.JPG
original collar,not drilled straight anyway.
IMG_0125_1.JPG (91.86 KiB) Viewed 3328 times
IMG_0123_1.JPG
old and new, side by side.
IMG_0123_1.JPG (112.31 KiB) Viewed 3328 times
IMG_0116_1.JPG
New collar
IMG_0116_1.JPG (91.5 KiB) Viewed 3328 times
IMG_0113_1.JPG
New feedscrew and collar
IMG_0113_1.JPG (83.17 KiB) Viewed 3328 times

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