If we're talking about the fast hitch and not the Touch-Control it reduces the systems that can fail. The fast hitch has a control valve,a check valve and the cylinder. The control valve has no internal o-rings so it should be OK if it doesn't leak. The check valve might be the culprit but it has few internal parts, one o-ring and a check valve that was metal in mine. I think the best bet would be the cylinder. Doesn't take much trash to score the main o-ring in the piston and that can cause it to settle. If you haven't already, you need the check the screen in the touch control unit to see if it is intact. If not or if you changed it already the system might have trash in it.
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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