[MillMan97]

I have not been on this forum in quite a while and just re-registered. I have a 1980's Bridgeport BOSS 6 Series II cnc knee mill. The vari-speed pulley on the motor wore so badly I had to replace it. The new unit came in with the spring retainer plate screwed down tight to the hub of the disk. I know this is not going to work like that, but I cannot find any information as to whether I should merely loosen the screws or remove them entirely. I use this machine daily, so fixing it as soon as possible is important. I have usually relied on my favorite Bridgeport CNC technician, but he just had a stroke and is in rehab.
Has anyone changed this pulley? What is the correct installation. Any help will be much appreciated.
Thank you
Fred Howe

[danbeckergb4]

Hi, I'm a retired EE with machine tool and servo drive experience. I have a Bridgeport BOSS 10 running machine with a noisy spindle. I'm doing the variable speed pulley bussing update. Have you disassembled your var speed pulleys?