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    966C caterpillar Hydraulic leak on shutdown.

    I haven't had to add hydraulic fluid for months! In the end of this project I must report that the shop that did a $17,000 rebuild in 2009 did well with the engine and Line boring but failed to complete the proper assembly of the Hydraulic transition from hose to hard line behind the pivot. Only...
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    966C caterpillar Hydraulic leak on shutdown.

    The diagram was helpful once I turned it upside down! Lol I was looking at the overall system upside down in the beginning, that was the only way I could see it all at once. I added 4 very bright LED lights......now I can go into town and crush cars at night! Lol Thanks a lot guys!
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    966C caterpillar Hydraulic leak on shutdown.

    It was a particularly ugly winter here, almost doubling the effort needed to do something like this. I do not have a shop big enough for it so it is frozen fingers one more time. The ice and snow are gone, I have gotten most of the feeling back in my fingers. I'm checking the torque on that in a...
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    966C caterpillar Hydraulic leak on shutdown.

    It's not a return line, forgot it's not my Farmall 966. Been too cold for me to do anything. After 50+ years in the Oilfield, my fingers have been frozen so many times that I have limited feeling in them, have to be careful not to let it go too far. I'm surprised I haven't lost any yet. I drop...
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    966C caterpillar Hydraulic leak on shutdown.

    Finally had a chance to locate the leak. It is at the final connection for the return line from the left lift cylinder. Been too cold for me to do anything about it but at least i know where to start now.
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    966C caterpillar Hydraulic leak on shutdown.

    Now that looks like a manual! I think I will have to ask for a refund, it's worth a try. I will keep the thread going as I find out what the deal is. It is important that the knowledge continues and grows. It is something that each of us can do without interference from Government or outside...
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    966C caterpillar Hydraulic leak on shutdown.

    Thank you Sir! The manual I have is quite a bit different, I suspect that it is a singular Cat Dealers rendition. i greatly appreciate the time and trouble you have taken to put things in order.
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    966C caterpillar Hydraulic leak on shutdown.

    SERIAL#76J2480 1969 966C Looks like the Grandson has been taken back by my Daughter...something about school and wrestling and lord knows what else, she is intentionally vague about those things sometimes, Lol. The manual I have is not the same one you did the copy/paste from. I can see...
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    966C caterpillar Hydraulic leak on shutdown.

    Serial# is 76j2480. the manual I have is not the same, I can tell from the watermarks on the Copy/paste from yours and the illustration.
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    966C caterpillar Hydraulic leak on shutdown.

    The Serial# is 76j2480. I am still having to struggle to get mounted and dismounted, will be this way for at least 3 weeks but barring any more snow storms, I have things in shape for spring run off. The Manual I have ordered should be here soon. I ordered the Hard copy, I function better with a...
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    966C caterpillar Hydraulic leak on shutdown.

    Now there are a couple things at least that the manual neglected to mention. I have operated a 966C many hours but it was a company with quite a few pieces of equipment and there were 3 oiler/mechanics checking most fluid levels and topping off each shift. We just shut down long enough for them...
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    966C caterpillar Hydraulic leak on shutdown.

    When I am able to, I will be putting a wrench to all the fittings and/or tool surfaces. The loader came to me with 21 hours since a fairly extensive engine rebuild and other shop work. It has been my experience during the last 10 or more years that almost anything I have ran, from Motorcycle to...
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    966C caterpillar Hydraulic leak on shutdown.

    Initially when I got the Machine and determined that the hydraulic tank was over full, I drained it and Refilled with 25 Gallons to bring it into the sight window. Since, I add when I see the level at the top of the window, cold before startup, as level as possible. At first the fluid appears to...
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    966C caterpillar Hydraulic leak on shutdown.

    I recently acquired a 1969 966C Cat Loader. The engine and brakes have been rebuilt and multiple Cylinder seals have been replaced. There are a couple of issues but the main concern is upon shutdown, approximately a quart(or so) of Hydraulic fluid leaks onto the center pivot area and then onto...
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