I purchased this tractor used but with 350hr's. First time I tested the 3-Point was with a No-Till drill that weights #4,000, the tractor can lift #5,200, it was only able to lift the drill about a foot of the ground. The next week try again but this time it lifted the drill like it was lifting a feather and all the way up fast and down fast. A few months later I am ready to use the drill, ones again the tractor could only lift the drill about a foot of the ground. I decided to go ahead and use it anyway's. About five acres later every time I had to lower the drill it started to lower it extremely slow until it would not lower the drill anymore. A local tractor mechanic (not familiar with electronics) came over and unhook the plug to the 3-point position sensor and hook the sense back up, started and turn off the tractor about ten times and the 3-point started to work again. It's done it two more times and every time I have got it going again using the same technique. Is the 3-point position sensor bad?