The other day while we had our 43 putz pumping wide open for most of the 800+ yards we had. While we had it z'ed together and getting close to finishing the pour, I noticed hydraulic fluid squirting out of the overflow just a bit. My first thoughts were that the fluid had been topped off to full at the shop, but the next morning when I looked at it, the fluid was just above the add line. Also, after the truck was completely folded up after the pour, the fluid was just below the hot full mark. Anyone have any answers for this one? Could it have been to hot, but cooled off just enough while folding the truck up. The fans are also both working on the cooler. 

Hydraulic oil expands a little when its hot i always keep mine just under full...

I had this happen , was you by any chance out of level ? I had it happen due to it being overfilled , after pouring 350 yards , when I folded up made one hell of a mess.

Oil gets hot start spraying you oil tank with cold water or do what I done put a heat exchanger on pipe water from your water bov its not supposed to get over 220 degrees.