Help! > Mistakes, muckups, and dangerous behaviour
An anxious afternoon
Charles Lamont:
I do have a reproduction manual, from www.lathes.co.uk. Everything is as original, so the bearing speeds and lubrication method are fine. The originally specified Shell Alvania 2 is nothing special, and I am using the Morris's equivalent. I have had the spindle assembly apart again this morning and removed the grease from the labyrinth seal and its vicinity. I also cleaned and re-greased the top bearing more thoroughly than before, as it had darkened some of the grease. The bearings are Timken taper rollers, and, as far as I know, the cage and rollers do not disassemble from the inner race, so it is not easy to clean. This time it got blown through (but not spun) with the air jet as well as paraffin washes.
On reassembly I ran it until it got pretty warm and then let it cool down. After lunch, I was able to run it for half an hour at 1400 rpm. The temperature of the quill stabilised at about bathwater temperature, cooler than the normal running temperature of the motor.
The machine is now back in use. Thanks, people, for your support.
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