Great comments from a lot of experienced users here.
One comment reflected my thoughts: Rental units often get harder use by inexperienced users. But, not every rental gets hammered. Some are used by experienced operators.
Simple way to tell is the FEL. If you can see play in the joints, its likely been run into things or used for a lot of digging.
I bought a machine (126 hours) from the original owner who abused it mildly and then smashed the hood by dropping a trailer axle off the back of the bucket onto the roof and hood. My buddy thought I was nuts to buy the thing but, after repairing it, its been a great tractor for me. Did I still have a few issues? Sure. It was still under warranty and I bought the three-year extension because of the work I planned to do with it. I made back my warranty costs and essentially broke even. It now has 340 hours on it and I could not have done most of the jobs I did without that capability.
If the machine has a documented service history, that is a big bonus. If it has 200 hours on it, that is a big bonus as opposed to 500. Look the machine over for scrapes and abuse. Nothing speaks louder for internal damage than external damage.
Is a 500 hour tractor a bad thing? Not necessarily. HST tranny's are near bulletproof if the service has been done. The one thing you have going against you is the prices in used machines has remained high of late and you may have competition for these, especially the good ones. Again, that gets you closer to the offers on a new one along with the killer financing (that likely won't be with us in a year or two) and the new-buy offers on implements.
Just because an FEL has been abused, doesn't mean that is a deal breaker. FEL joints can be re-worked and shimmed with oversize pins. And just because all the joints are sloppy, doesn't mean it can't do a lot of work for you with those sloppy joints! Keep it lubed and it could run for 20 years and not get any worse. The cylinders may help you decide (or hammer them down) because they can leak or be worn. I wore out one in 340 hours. I am guessing the other one is nearing the end of its life. You can get them rebuilt or, for not a lot more, just buy a new one and bolt it on yourself. Its not hard.
If they let you drive them, that will tell you a lot. That is rare for auction vehicles but, perhaps equipment auctions are different. It doesn't hurt to ask to preview a day or two before the sale. Even if you can't drive it, simply running it and moving the FEL and 3pt through its limits will expose problems. Shift in and out of range to check for worn or ground teeth. And simply moving forward or backwards a foot or two tells you something about the transmission. The HSTs on Kubotas are loud as hell. If its sounds like high pressure water running under your foot, that is NORMAL. When I test drove mine, I thought it was about to explode! LOL...
If you have a friend who knows Kubotas, take him with you. Nothing makes a weekend like spending another guys money!
