Never beat on the ball, you will ruin the coupler, the slightest hammer mark will make it so it will leak all the time. What you did was unhook the pine with a load on it or heat expanded the oil. Like the other poster said loosen the coupler and let a bit of oil out. That tells me you have the old style Pioner coupling femal tips. and they are not designed for coupling under pressure, There is a version designed for coupling under pressure like you had but expnsive and scarce.If you forget to put the implement lock on or leave the implement set on ground you would have to take jacks to lift the implement enough to release the pressure in the hose. If you cannot do that and try to unscrew the coupler if you unscrew that coupler too far the hose end will take of like a rifle shot and you will be badly hurt. So make sure there is no pressure on the hoses when you unhook the cylinder but if you do have to release a lot of oil to get them hooked up be very carefull in loosing that coupler and only do it just enough to get an oil drip. If you have left the cylinder under load when unhooked it make take quit a while for enough oil to drip out without blowing that coupler a thousand feet. Always make sure all pressure is released and that means shut the tractor off and move the control to release all pressure before pulling the hose. They can be very dangerous if you do not handle them correctly. If it is on a double acting cylinder 2 hoses you may be able to release head build up pressure by hooking up the other line first and with tractor shut off you MAY think mabey will be able to release enough temperature expanded oil to get the coupler to work. But always be sure to with engine off move controll lever in both directions to release all pressure.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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