Normal operating temperature is 100 degrees over ambient temperature. Anything above that would be concidered hot. If the system is indeed running hot then the system is staying on high pressure. The unloading valve is suppose to dump oil back to the sump when you are not using your hydraulics to prevent the oil from getting hot. Hot oil is thin and easier to slip by the gears from the high pressure side of the pump to the low pressure side. Does it sound like the engine is laboring all the time like you are constantly using the hydraulic system. Sometimes the tel-a-depth valve spool will hang up in the valve and not return to neutral and keep the system on high pressure. If you have weak hydraulics to the auxillary valve only then you need to check for a blown o ring on the check valve piston. Chuck
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Today's Featured Article - Trailering Your Tractor - by Curtis Von Fange. One of the fun things of summer and fall are the parades and tractor shows that go on across America. Many owners of tractors travel long distances to attend these shows and they usually take their restored iron along with them. Safe trailering practices and inspections will ensure that the event is a fun one. A good habit to develop when using a trailer is to give that �quick look over� before taking it on a trip. Before hooking up to it check the tongue for proper operation. The latche
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