Hello again everyone,
My machine "has" TSC and came with a crusty un-installed Deublin rotary union. It spins freely but I am skeptical of the condition of the seals due to the fact that it is no longer installed. I would like to re-install it to use the spindle air blast, at least. What is the worst-case scenario if the seals are bad and I try to run through-spindle coolant? Is the spindle cartridge water-tight from the top? Or will I bathe my spindle bearings in coolant?

I found the edge protector and plate I need on the MAG site, but I sure won't be shelling out $750-$1,500 for another Deublin any time soon.