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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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2-105, changed pump, couple questions.

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alranchNE

12-13-2006 16:03:38




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Got the pump changed finally. I only ran it while sitting a very short time, I'll try it out more tomorrow, I'm letting the remaining little air bubbles float out before I do much, oil was cold so it will take a while, not too many in there though. Hopefully it will work. I ran it long enough to know that it is at least not getting the oil hot like the old pump, the other one did in no time, but we'll see what happens tomorrow, might blow up with my luck. So far, just while sitting, seems like everything "works". Steering is good, 3 point raises noticeably faster (cat 3). Steering and 3 point work at the same time at idle. I have a stackmover on the back, raised and lowered it, it seemed slow, was before I changed the pump. Wondered about the restrictor screw on the valves, but I took off the pressure from the lines and could not turn the screws on either valve, at least not with the big screwdriver I had. Both are the detent/automatic kick out valves, not float. Does the other restrictor screw that is next to the valves, closer to the tractor, control the 3 point?

Also another question, I had to jury rig the little return line on the top of the pump, it would not bend or anything to line up with the newer pump, had no adapters or anything and didn't want to run 30 miles to town to get any. Should hold just to try it, but I was wondering just out of curiosity if the oil in that line just goes up into the reservoir where it screws into the tractor, or if it would happen to lube something else (in case it doesn't work I could fix it temporarily another way until I get something right). Also wondering if it should have much pressure in the line while running, doesn't seem to yet, just wondering.

Thanks.

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J Schwiebert

12-13-2006 17:29:09




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 Re: 2-105, changed pump, couple questions. in reply to alranchNE, 12-13-2006 16:03:38  
I have not looked at a Cat 3 hitch in years, but if I read the first part of the question the answer is "No". To answer the second part of the question that line is the drain that collects the internal leakage from the pump and returns that oil to the reservoir. It should be low flow, low pressure and it will be the hotest oil in the system. Your turn now: I think you are describing the rate of flow to the remote valves in part one of your question, BUT at this point I am not a 100% sure. Do you have an operators manual? If not get in contact with themuseum and get yourself one. J.

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alranchNE

12-14-2006 15:25:59




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 Re: 2-105, changed pump, couple questions. in reply to J Schwiebert, 12-13-2006 17:29:09  
Got the restrictor valve to turn, loosened the lock nut and had to put a wrench on the screwdriver to turn it the first time. Now the valves work faster, looks about right. New problem, I don"t know if it will quit with time, if I set that restrictor anywhere except where the dealer left it, whenever I use the remote it gets tiny air bubbles in the system. It does not get any bubbles AT ALL when either steering, or when raising and lowering the three point several times (put some weight on to try working it too), brakes, engine running fast or slow. The cylinder on my stackmover is basically new, and I see no leaks at all anywhere, with anything I touched. The hydraulic hose to the mover holds pressure at least several hours with the tractor off. In fact when parked over the day I see no drips where it was sitting. The oil level is the same as when I started, and the oil does not get too hot with hours of use. Checked the filter area, and the whole intake side thoroughly. Try to figure it out I suppose.

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J Schwiebert

12-14-2006 19:17:27




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 Re: 2-105, changed pump, couple questions. in reply to alranchNE, 12-14-2006 15:25:59  
Your cylinder(s) is caviataing. In theory you need to force the cylinder down with hydraulic pressure. Yoy need to adjust the rate of lower on your valves. More details a little later Gotta run. J.



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alranchNE

12-15-2006 20:09:51




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 Re: 2-105, changed pump, couple questions. in reply to J Schwiebert, 12-14-2006 19:17:27  
Seem to be getting better with the other problem but the way things go I never get any time to work on it during daylight. One other thing, hopefully last one, the pump (I think) seems loud. It made noise on the old tractor, sounds like that, the pump that was out made the same sort of noise, I am assuming they make some noise because it always did, original pump on the other tractor and any I've heard, just seems louder. Sort of whining, doesn't get worse, seems to get a little better under load, again oil does not get hot very fast. I can't tell for sure where it is, it is not as loud standing next to the pump, it is louder behind the tractor, and through the floor of the cab, but either the pump or right behind it vibrating. Pump flow and working pressure seem to be ok, seems strong. The pump seemed to be adjusted "right" on the 1855.

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alranchNE

12-13-2006 18:38:31




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 Re: 2-105, changed pump, couple questions. in reply to J Schwiebert, 12-13-2006 17:29:09  
Flow rate, yes. The valve that I thought might be 3 point adjustment is not when I think about it, I think that is probably the flow rate restrictor for the valves, probably what I should try adjusting, I did not touch it yet. Should the restrictor screws turn fairly easily? Never touched the adjustments on my 1855 so I don't know about them.

Thanks for the response J.



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