Posted by Andrew Psencik on March 25, 2012 at 11:41:20 from (166.205.11.146):
1975 1566 doing weird things with hydraulics. Sometimes the work well with engine about 1000 rpm or above. Then after about 5 mins of runtime, the steering quits altogether (not even manually. The wheel won't even turn. ) front blade won't raise or lower, three point acts funny, and ta quits working. If I shut it down and wait 5 mins, it will work but the cycle repeats itself. When it works, blade will lift tractor off the ground and will not leak down. Ta works fine when the issue is not happening. So does the three point. Hyd fluid is very milky, but full. Thanks. A.P.
Upon fiddling with it a little more, I raised the blade, shut off engine, then lowered blade slowly. When blade was going down, I could hear fluid rushing through the lines with slot of air in them. Then I could hear air pressure bleeding through trans dip stick. Then I pulled dipstick and air blew out under pressure. Where is this air coming from......?
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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