Seems a dumb question but we have not used the machine as of yet and just got to looking at the coolant system to get things setup for this spring. You can easily see where the electrical plugs in but all I have on the pump is a barbed fitting. There is one hose in the back of the machine that goes into the turret and has a quick couple connection on it. It is very near the hydraulic system and I thought it might be an auxiliary hydro hose and not coolant.

I do NOT want to make that mistake! Nothing is marked and of course the manual says nothing about it. Can someone clarify? The machine is of the 1990 vintage. thanks