I won't forget that little screw valve.
In 2018 the little dealer I worked at for 26 1/2 years was bought out by a larger conglomerate of investors. They own several dealers in the area. Well one afternoon one of the other dealers' service trucks shows up with an L3600 identical to the one I used to own, which my brother now has. Great tractor. Anyway, it has an LA680 loader on it. Service manager comes out to my work bay and says hey we got a tractor out here that the other dealer cant' figure out. Says the loader only works when you advance the throttle, and even then it's slow and won't always work right. Ok, drop it off and I'll get to it tomorrow or the next day. 4 days later (we were busy at the time) I go out there and look at the little screw valve. Yep half off. Turned it on, works perfect. I didn't say a word to the service manager, I just let it sit there until the service coordinator of the whole company showed up. So he asks me if I'd looked at it and of course I said yep there it is I see it and I'm looking at right now. He went on to say that the other 2 stores in the area have rebuilt the pump, replaced a couple of valves, a position control valve and a power steering valve, of course the filters and fluid, the one store deemed the GST valve to be bad so they replaced that, and guess what? Customer's tractor now has about $4700 worth of work done to it. They gave up and bought it to our shop and said fix it. I walk out there with a screwdriver and fixed it. Problem solved. Showed the service coordinator what I did and he turned around and walked off without saying a word. My thought there was that he was trying to conjure up a way to call the customer & explain to him what the problems were WITHOUT telling him about the little screw valve. And that....is one of many reasons, I left that dealer group. They weren't 100% truthful with me, nor the customer--and I don't and won't work like that.