Hi all,
Just a shot in the dark here - can anyone tell me the correct method to remove the Norton gearbox from the front of a 1958 Harrison L5?
Currently I believe I need to remove the changewheels, and quite possibly the lead screw and the feed shaft below it... does this necessitate removing the saddle and apron as well?
The reason I ask is, the lathe is whisper quiet even at nearly 2000rpm (tachometer on spindle) with a polestar 3 phase motor and VFD.... until I engage the lead screw and feed shaft. Then, the usual howl and ringing of the change gears starts up (something I am investigating separately - unless anyone has any tips to tighten up the lash on those gears and quiet the ringing they make?) as well as a nice grumble from the norton gearbox area. Inspecting from underneath, the cone of gears looks like its been bathed in grease by some previous owner and I want to strip it, clean it down and assemble it without all the chips stuck in there.
Many thanks in advance!
Matt
Just a shot in the dark here - can anyone tell me the correct method to remove the Norton gearbox from the front of a 1958 Harrison L5?
Currently I believe I need to remove the changewheels, and quite possibly the lead screw and the feed shaft below it... does this necessitate removing the saddle and apron as well?
The reason I ask is, the lathe is whisper quiet even at nearly 2000rpm (tachometer on spindle) with a polestar 3 phase motor and VFD.... until I engage the lead screw and feed shaft. Then, the usual howl and ringing of the change gears starts up (something I am investigating separately - unless anyone has any tips to tighten up the lash on those gears and quiet the ringing they make?) as well as a nice grumble from the norton gearbox area. Inspecting from underneath, the cone of gears looks like its been bathed in grease by some previous owner and I want to strip it, clean it down and assemble it without all the chips stuck in there.
Many thanks in advance!
Matt