Bridgeport BOSS tool holding problem

[speedhound]

I have a bridgeport boss that came with a few tool holders, but when i put them in the spindle it dose not hold the tool properally as it turns a small amount and can be moved when pushed on. The collar is missing two opposite screws (which was the same as i saw on someones interact)but i dont know why, could this be the problem? Also the screws in the collar vary in lengh so dont know what i should have.

Thanks

[wundertat]

Hello Speedhound,

Do you have the Ericson QC-30 (30 taper) quick change tool system? If this is the case, see the attached file with instructions how to install and adjust the locknut.

Hope this helps,

wundertat

[speedhound]

Thanks for reply, this seems a bit different to mine as it has more screws, but this method might work so i will have a go as i have nothing to loose.

Thanks

[Southbend Sam]

You might have a Kwik Switch spindle. One way to find out what you have is go to Tools-n-Gizmos: New and Used Surplus Machine Tooling. They have pictures and specifications for many different tool holders including the ones mentioned. They also have repair parts as well as used tooling.