Sergei Slovenija
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Page: 12Ursus | store.lathes.co.uk
store.lathes.co.uk
Page: 12Ursus | store.lathes.co.uk
store.lathes.co.uk
£32 eh ???He knows how to charge.
All the threads appear to use the same set of gears if I understand the chart properly. Is the handle just there to adjust the meshing and/or disconnect the gear box leadscrew and power feed when it is not required?
Just guessing.
Small gear 30 teeth. Three gears with 60 teeth. We have a decrease in drive speed by 2 times. The handle switches the direction of rotation. The apron drive shaft, with a key groove, lies in line with the bottom gear.All the threads appear to use the same set of gears if I understand the chart properly. Is the handle just there to adjust the meshing and/or disconnect the gear box leadscrew and power feed when it is not required?
Just guessing.
Asked manual the manufacturer of the lathe. The company exists and offers new and used spare parts for the Ursus turning line. Let's see what they answer. But I proceed from the assumption that will have to learn and understand everything yourself. Based on the logic of mechanics and similar solutions on other machines.It may be the swap between "Modul." (imperial??) and "Metr." on your gear ratio chart. On the far left it shows that train of gears with a 30 and a 60 gear alongside the corresponding row of gear ratios. There must be more hidden adjustment behind those gears though because that little slot hardly looks like it moves at all. You need a manual!
On my Colchester, it tells me which of the ratios in the gearbox relate to whichever "changewheel" is present.
So yes, I think you have to swap it out to use all of the ratios shown on the panel you posted earlier.
Where? What part of the machine are we talking about?The 2 idlers are on eccentric pins
All the threads appear to use the same set of gears
Lathe chuck (dia 250 mm) attachment. I couldn't find the manufacturer's mark anywhere. The jaws have a noticeable play in the grooves.
Where there are recesses for the key, in German the marking is "Lös <-> Anz"Please, are you aware that you have only removed the chuck from the backplate and not the backplate from the spindle?
From the large nut on the spindle, it has an American L-series spindle nose. See this post (https://www.mig-welding.co.uk/forum/threads/mystery-lathe-carriage.121977/page-2#post-2075917) for a diagram that relates the diameter of the nut to the L-number.