Bought a lightly used (800 hrs) 2013 M7040 with a front three point hitch and PTO, which has so far been an absolute pleasure to use blowing snow on our farm this winter. We're veggie farmers, so the front three point will be used to mow in conjunction with a rear cultivator for permanent beds. In any case, although the front three point seems flawless, and the remotes on the front work fine, the rear three point is behaving very weirdly: regardless of the where the position and draft control levers are, the three point never drops below about halfway down. As well, with the position lever all the way down, putting the draft lever down results in the three point going up (!) until the pump starts labouring. If you then pull the draft lever all the way to the top, the three point will drop, but only to about half way.
Has anyone ever seen anything like this? I bought the tractor used from a dealer, and they've sent me a bunch of diagnostics from the shop manual, but I feel this situation doesn't reflect any possible troubleshooting situations from normal operation. I did pay them to replace two hydraulic hose fittings that were rusty, and I am wondering if they somehow switched them, but they assure me that if that were the case, none of the hydraulics would work at all. See the video of the weird behaviour in action!
