Dealer plugs in whatever diagnostic tools JD supplies, and if it won't "communicate", or whatever it won't do, they are clueless. Believe it or not, the main thing, as I remember now, was someone stuck fuses in most of the slots, we believe were originally empty. After digging right into wire harnesses, we found splices buried in harnesses, where multiple fuses fed one circuit. The whole back of the cab is covered with a bank of fuses, control modules, circuit breakers, relays, etc. Apparently any one model does NOT typically use ALL the fuse slots.
There was also a starting/loss of prime issue. When we discovered the fuel supply and return hoses spliced together at the engine, we were confused. But research at JD parts showed a connector/orifice in the splice. Purchase and installation of that orifice solved that one. However, it still is a good idea to turn the key on, and let the electric lift pump run a bit, before starting.
We obtained some printed service information. We had a stack of paper a foot deep. And we still didn't have all of it. And what we had didn't make much sense.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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