706 hitch pump didn't fix problem

After a short process of elemination, new filters, new orings, and new hitch pump, an old IH mechanic showed up today and ran a pressure test, load test, flow test, and relief test. Brand new pump 4GPM, pressure 38psi. After the test he assured me of a serious internal leak, and showed me an easy way to find it. On the rear of the tractor where the top link for 3pt pins to the frame, you can take the two left bolts out of the pto housing that holds the pto lever linkage (3/4) socket, then remove the 6 bolts (15/16 socket) that hold the cast toplink plate on, and see inside majority of the rear housing. Started the tractor, pulled remote lever back, and oil blasted from top of housing to the bottom like a water faucet. He told me 9 out of 10 times, that can be done with gasket staying intact to the rear frame, and you can put the cover right back on after you have seen if thats the problem. I wanted to share this because had I known that prior to buying a new pump and a whole lot of hyd oil, I would have more money to fix the ACTUAL problem which will require pulling upper half of rearend housing off. He tells me most of the time the problem is as simple as bolts backed out, or an O-ring blown or gone. Thanks for your intrest and hope this may help someone down the road.......Matt

Two grand to pull the rock shaft housing off, wow i never knew i could have ripped people off so easy . It only takes and hour at most to pull that off and about the same to put it back on IF there is NO CAB.

We were discussing some of my other issues aswell, 540 pto seal leaks like a sieve, brakes and t/a aswell, he may have been including that. I removed that part so it doesn't cause a controversy. He wasn't charging me that either he was just making an estimate as to what CaseIH dealer here would probably charge to fix it. I generaly try to fix my own, we were just chatting about it and that was the number that came up. You have however lifted my hopes if it's not that big of deal to get it off and on......

No it is not that hard of a job . Remove the deck plate and any hyd. lines that may be on your tractor going up to the dash support Myself i always remove the seat . Remove all the bolts and either with a cherry picker or a overhead hoist place a chain around the lift arms and one chain up to the ft. so that it will come straight up . Now i am here to tell ya that the gskt. will be stuck and i mean stuck as to the point that you can darn near lift the back end off the ground. Use a stiff blade putty knife and have it sharp and drive it in around the corners to break the seal. Before you go and lift it off the rear end look into the three point top link bracket hole over on the right side for the arm that comes up from the bottom and see how it sets with the arm hanging down from the top . As the one on top sets behind the one from the bottom and that is how it goes back together, if you mess this up when the tractor starts the hitch will go to the top and stay there. That rock shaft cove is vary heavy so be careful When going back together make sure that you replace the gskt and install a new o/ring. Use two guide bolts to hold the gskt and also to guide the cove back down correctly . When ever i go out on a hyd. problem i always use my flow rater first before i do anything, But 99% of the people do not have the luxury for having that toy to play with. I was lucky enough to buy a old I H dealers shop equipment and i got 95% of everything they had the other 5% i did not want . I have every special service tool From letter series thru the 88 series and the newer stile splitting stand. So i have sorta a leg up on most people. I only went to the sale to buy JUST the flow rater and ended up with it all. Took two trips with a one ton truck with a 9 ft. flat to haul it all out.

Thanks Vet!! If I was gonna be working on these all the time I would try and purchase some specialty equiptment myself, but for now this is the only jewel I have thats red. You were fortunate to be able to buy those tools, and probably at a reasonable price......Thanks again Matt