I have a 2000 M9000 that recently had the hydraulic fluid and filters replaced. It would work sporadically, but now I can't get it to budge. I've read about the transmission vent being clogged and there are mud daubers, but I can't find a vent anywhere. I've searched the service manual. Front end and 3 point work. Clutch has about 300 hours on it. I'm at a loss and Kubota Service near me has failed me in every previous issue since, so I'm very skeptical to take it 80 miles for them to look at it. Based on my experience, I've had to fix every issue myself because they just rack up a bill through trial and error of parts. Any thoughts?