1 Attachment(s)
AL 320G Lead screw DOR gears
Having just spent ages cleaning the gear head up, I turned my attention to the gears that control the lead screw DOR, listed in parts manual as Left Trestle. Apart from the usual contamination etc, the first thing I discovered was there were no oiling points for three of the shaft bearings. There are four oil point for two gears and two bearings, but I guess the others just run dry untill the grind themselves out.
There is no way to get oil to the points by drill holes etc (that's possibly why they didn't bother) and the only solution I could come up with, is when I reassemble the unit to seal the back cover (and any other leaky points) drill a hole through the top of the casting and add a small bath of oil for the lower gear to run in and hope it can splash a bit of oil around the box and hopefully into the bearings.
There is also a small thrust race that I assume should have grease in it, but it too was dry as a *******
So whats the opinions and is the oil bath worth a try?
Bearings, bushes and leaky things
Stuart, you are correct, the ones in question are bushes, and of a grey iron type material, though I'm not sure exactly what it is. The leaks from some areas would be of slight annoyance, but nothing that's going to gush out, cant be wiped up and replaced.
George