Posted by JDseller on December 07, 2010 at 20:40:35 from (208.126.196.144):
In Reply to: hyd. oil posted by sam in mo on December 07, 2010 at 12:10:02:
Water is not the only thing that will make oil milky looking. A high pressure leak will foam the oil and make it white/milky looking. If you take a sample and heat it up it will separate. I usually take a quart jar and fill it half way with the oil in question. I then put a pan of water on the stove and set the quart jar in the pan. Heat the water and it will heat up the oil in the jar without any fire hazard. Water and air will stay suspended for a long time just setting around. Heating it it will separate in just a few minutes. Then you are not guessing what is in it.
If you have a high pressure leak that would explain your lifting problem. MFs are bad about the pressure relief valve leaking in the internal transmission hydraulic pump. They will foam the oil. Your MF 175 can have two different hydraulic pump setups. One is the transmission one only and the other has an engine driven pump for the selective control valves plus the transmission one for the three point.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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