Colt ( Myford Copy) Lathe Conundrum. Oil or Grease For Back Gear Shaft?

dimanche 12 avril 2015

G'day



I'm pulling apart a 2ndhand Colt lathe that I bought. It had a couple of issues when I got it that I knew about and one issue that I didn't know about. When I first ran it (high range) it was fine, select low range by engaging the back gears and whoops we've wound off a pulley on the motor side of things. The back gears seemed a little slow but I'd squirted oil on everything that didn't need grease, so I had hopes. But no. So, now it's all apart and cleanish, does anybody know what to lubricate that spindle with?

It has what looked like a grease nipple near it on the handle that engages the gears and the last person to maintain the lathe thought it was a grease nipple too so there was grease in it. But it's lubricating a plain shaft that the gears run on, there's no ball bearings. So, oil, right? Anybody want to make a good guess as to what sort of oil?



Not sure how the Myfords are lubricated in this area but the big difference between them and this copy is that this one has tapered bearings and grease nipples on the headstock so no oil to drip down further.





This is the end that's normally surrounded by a handle.The hole is 10mm in diameter and contains (if you squint) what looks like a grease nipple. The hole in the center is from a center drill. Sorry about the fuzz from the camera phone.











This shows the hole for whatever lubricates the back gears.







Thanks, any answers welcome.




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