My 2011 - Sk170 has 2800 hrs and started a hydraulic pulsing this morning. I checked the tank and it was way over full and had a green tint to the fluid. This started explaining the coolant loss ive been experiencing for a year or so with no explanation, puddles, or smell in the exhaust. Has anyone with a similiar kobelco had an issue with a radiator which i assume cools hydro fluid as well, and can tell me how they remedied the issue of coolant getting the hydro system? I appreciate any help or advice. Thank you.
can you get pictures of what you are seeing. the cooling system for the engine and hydraulics are completely separate.
serial #YM07U1937 Ive got an over filled hydro tank that has a green tint that i can see. Im assuming it was antifreeze because ive been losing it as well. also the hydro system was pulsating as if it were trying to move water through the system instead of hydraulic fluid. If youhave a min perhaps we could talk- Dan 774-535-2104
follow your hydraulic hoses to the oil cooler, identify if its a oil/coolant cooler if so u most likely have a internal failure. you cam pressure test the radiator and see if u get bubbles in the hydraulic resovoir or remove the bung from the hydraulic tank after its sat for a day or so to see if there water. the oil will sit on top of the water.