I assume by your statement that it has a switch inside the cab and that your unit is a belt driven electric clutch unit.We used Muncie units on Tow truck applications before hotshift pto's for automatic transmisssion beacame common.I have never heard of the 3 pressure lines myself (which means nothing)I would suggest to find the nearest Muncie dealer or distribotur and send a photo and ask for their help.I am from Ontario Canada and we have a pretty good distriubutor here called Drive Products i Missasauga Ont.If I can help let me know.Ron
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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