Hello

New member here, i am a fitter/turner by trade , with an interest in all things mechanical. In the shed i have a colchester master 2500 lathe , and just last week i bought a tom senior universal milling machine. This is the final version of the m1 major and mine dates from 1981. This mill came out of a community college and had one owner before me. The machine is in excellent condition , there is no wear and it is still tight.

I connected the machine up to my vfd just to see it running and was alarmed to hear a knocking noise from the shaft that drives the cutter. Would anyone have any experience with these models of machines ? or failing that a manual or an exploded view. I don't want to dismantle anything needlessly.

thanks

I found the problem , it was a loose grub screw in one of the gears on the main spindle which engages with the back gear. A few turns of a wrench and the sound completely disappeared, whew !