I've got a US built 1969 4500 industrial deisel (3 cyl) with a 740 loader and a 753 backhoe. Thanks to Oak's site, I've de-mystified the D5011K model number down into several things I knew and one I suspected (that it _was_ a 4500 - but it doesn't have a "4500" on it anywhere).A couple of questions: it came with no manuals at all, I assume that I should shell out $7 each for operators & service manuals for the hoe and the loader plus $14 & $60 for the operators & service manuals for the tractor itself from New Holland, despite the fact that New Holland doesn't know that a Model D5011K is a 1969 4000 series industrial diesel with no PTO and a 4/6 manual reverse tranny? If these are _not_ worthwhile, I'd like to hear about it... I'd also like to know if an additional outlay for the parts manuals covering hoe, loader, and tractor is worthwhile. In the meantime, a few questions. I've had this rig since August, and since it has worked the way it came to me, I have not tried to "fix" certain oddities, as I don't know where I'm wrong .vs. where it's wrong. The electrical system is set up 12V positive ground, and the charging system is disconnected (procedure is to put the battery on a charger regularly). I'd like to get the charging system working, but I don't know if positive or negative ground is correct for this model, and I'd just as soon not destroy things finding out. I would like to be able to run lights, and not have to drag the battery back & forth so much. Another thing would be proper place & method of adding hydraulic fluid - I'm assuming down the wee breather hole in the very nose (in front of the big, honking hydraulic filter), and that you must have a small-nosed funnel to get into the hole beneath the outer hard-nose skin. What I actually did the last time was add new fluid when I replaced the filter, putting it into the filter compartment. Due to a slow leak in the hoe, I need to top up now, and would rather not mess with the filter compartment. There are other questions, but those are the big ones for the moment, and the manuals will answer most of them, I'd hope.
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