A friend of mine has a john deere tractor with a front end loader. We have been using it to load logs into a truck. I think we picked up a few logs that were too heavy, as the loader will no longer stay up on its own. I drifts down even without a load. I don't know much (or anything) about tractor hydraulics, so I just need a place to start looking for problems. I'm guessing this may be a relatively easy diagnosis for people who know these things. Any help would be appreciated. Thanks, Mike