Posted by Gene Davis (Ga.) on January 07, 2008 at 02:30:03 from (75.104.46.36):
Hey guy, some of you hydrostat guys like Allen in Ne or some of the rest of you, I need to ask a question. I have a 198 series Dig-It,(really is the name),made by Yazoo/Pug Power Corp in Misissippi TLB backhoe and loader with a 2 cyl 18 hp opposed Kohler engine and hydrostatic transmission. The question I have is every time it travels in forward or reverse direction I get a loud squalling sound like a relief valve bypassing. It does it in forward or reverse and it seems to have equal power either way, not sure if it has all the power it is supposed to as it has been doing this since I got it. Do hydrostats always make a noise like this as they are used? If not, any suggestions? Changed oil and filter in the transmission soon after I got it. The hydraulics are a seperate system, and use 15-40 engine oil instead of the Dexeron II ATF that the hydrostat uses.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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