Mastodawn

@latuernich For machine ways, the "correct" oil is usually ISO CGLP ("Bettbahnöl"), of "apropriate" viscosity. ISO HLP ("Hydrauliköl") is a good substitute, with better avaliability (HLP 46 can be found in regular home improvement stores).

On such a small machine I'd recommend fairly thin oil. Probably ISO CGLP 32 for the slides. Again, HLP 32 might be easier to get and is perfectly adequete.

For grease, i don't know as much, but I'd probably just take regular bearing grease.

@latuernich Also: where it's easy to oil, I would use oil, anywhere else, grease.

So, the ways, definetly oil. The Quill, oil. The leadscrews? probably grease, depending on whether you have oil ports or not. The spindle? definetly grease.

@la according to the manual, everything except the spindle should be oiled so i will probably just do that.

Laura -> 39c3 DECT: 6011

@latuernich yea, that seems like a good idea. Tearing apart (or rather properly putting back together) spindles is a difficult topic. I'm probably gonna yolo it on my lathe (It's already apart), but those bearings have 40 years of horrible abuse behind them, and I will put them back in. If I'm ever getting new ones I'll take my time and do my best to do it right.

@la wait, i think i worded it ambiguously. i definitively plan on also greasing the spindle, i just meant that i will oil everything else. i don't know when it has been greased for the last time but it's not impossible it was more than a decade ago... i doubt it will work properly in the current condition so i would rather put some new grease in it.

@latuernich I guess it being specified as yearly means the spindle is decently serviceable... in most machines of that size I know the spindles are designed in a way where lubricating the bearings requires completely tearing the spindle apart (and that usually involves a mallet and some anger to acomplish, which isn't great for the bearings either.)

@la well, not sure if this is considered decently serviceable... i will see

@latuernich Thaaaat is exactly what I didn't meant by decently servicable...

It's doable, but if I were you I'd try figuring out whether you could get replacement bearings beforehand

@la looking around on the internet the only thing i could find was a video of an italian taking apart the spindle in an effort to restore their hobbymat. they seem to be single row tapered roller bearings, but other than that i was unable to find any information on them. also, buying new bearings for a *precision* lathe spindle sounds like not a fun time for my bank account :/

might just clean the rest and see how it runs tbh

@latuernich Those aren't too bad. For "serious" machines it gets pricey, think 200€+ per bearing. On my own small lathe the bearings cost 40€ as a pair (from the same manufacurer as the original ones)

@la oh, that sounds manageable. i think i will decide whether to touch the spindle after i did the rest.

btw, do you happen to know how important it is for such small lathes to be bolted down to a solid table? afaik we don't have one for it and don't have the space for one either. the manual only tells me *how* to bolt it down, but doesn't tell me if i *have* to.

@latuernich Eh. I wouldn't run one for more than a test without it being fixed to something. Maybe try to figure a way to temporarily clamp it to a table?