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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Running a hydraulic motor off a 1755

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e

12-18-2006 10:35:54




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The pump I put on the sprayer I just finished building is an Ace hydraulically driven pump. The motor uses 4 GPM. I'm looking for any hook-up advice before I start it up for the first time. Is it OK to just hook both lines into a remote or should should I plumb the return line back to the reservoir to minimize backpressure? The manual says the max backpressure should be 200 psi....the only way I can determine the backpressure is to actually run the pump.

Thanks!

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davidgasser

01-08-2007 07:01:58




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
hey cumminsman i was wonder what motor would be the best to put in an 1850 oliver tractor. (or the easiest to install). would i have to change the radiator? i was thinking of putting a industrial cummins in?



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Moline_guy

12-21-2006 10:29:11




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
This is for Donovan from Wisconsin, read your reply, I don't think heat is much of a problem running a spreader because it is only run for tem minutes or so and them off again, but when you run a hydraulic fan or pump all day is when the heat becomes a problem. We have a large New Holland spreader with hydraulic apron and heat is not a problem but we haul manure late in the fall and early spring so temps are cool that time of year. Also on the spreader we don't run the return into the reservoir, just through the tractor valves, I guess we probably should put it back into the resererve but it works fine just running through the valves. We always put the 2255 on the spreader just because it has a heavy drawbar,but the 1955 would probably handle it just fine. If we are hauling heavy type manure I have turned the pump up a bit so there is a little more pressure to work with so your 18 would handle it just fine, might need some weights up front and move your drawbar forward if the pto allows. I have seen your tractors on tractor photos you did a nice job painting them up, keep up the good work.

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fixerupper

12-20-2006 18:43:09




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
Just a thought, if the hyd motor only requires 4 gpm and I assume you have an open center system, and your pump puts out maybe 12 - 15 gpm at max RPM's and I'm just guessing on this, then the tractor hyd system will be bypassing a lot because it won't be able to force all that oil through the motor. Is there a cooler in the hyd system? If so, will it have the capacity to dissipate the heat created from the bypassing if the pump is run for an extended period on a hot day? I don't know much about the hyd system on a 1755 so I'm kind of out of my territory here, but I know a 1086 IHC with an open center system (gear pump) will eventually get hot oil if a spray pump like this is hooked to it for an extended period on a hot day. Congratulations on building your own sprayer! Jim

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Don-Wi

12-21-2006 00:51:40




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 Re: Running a hydraulic motor off a 1755 in reply to fixerupper, 12-20-2006 18:43:09  
The 1755's on up have closed center, so heat is a major problem with them on motors and the like form what I have heard. I've been listening in on all the advise too because we've got an 1855, and if we ever rent a bigger spreader again it'll probably be a hydraulic apron like it was last time before we had the 1855 and rented a tractor to go with it.

Donovan from Wisconsin



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Moline_guy

12-19-2006 18:41:37




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
When we were plumbing our oliver, the neighbor had just put a return line into the reservoir on his new maxxum, and the CaseIh mechanic told him the return has to be below the oil level so that is how we plumbed ours and we have had no problems. We never tried it on top and see if the system would buubble up, those hydraulic pumps are 1200 bucks new so I would suggest avoid cavitation if you can. Let us know if you get everything working and how it works out for you and have a merry xmas.

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Moline_guy

12-18-2006 19:27:56




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
I just reread your question and yes with those pumps you should have a return into the reservoir, I don't know what the back pressure is but it is going to make your pump run more efficiently and proper rpm if you don't have the back pressure found in the normal tractor coupler.



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Moline_guy

12-18-2006 19:03:22




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
There is a plug near the bottom of the reservoir, I guess its the drain plug for the hydraulic reserve on my 1955 thats where I put a female quick coupler for hydraulic return to run our 800 cyclo corn planter. You need to have the return below oil level so it doesn't get airand bubbles in the system, that is what we were told when we bought the planter. It has a hyd driven fan and runs all day with no problems, but the planter has an oil cooler so that maybe something you will have to ad. On my 1466 I also plumbed a return into the belly of the tractor and put a female quick couple on to so all you have to do is unplug the hoses like you always do just make sure you mark the return hose so you don't blow out anything if you hook a hose up wrong, our corn planter has a safety by pass so its not quite so touchy. My brothers air seeder has an oil cooler and fan, looks like a small radiator, and his hydraulics don't heat either on his 9150 4wd. One other thing I would do if the hoses are empty and its the first time you are running it is to put a loop hose in your other hydraulic valve like you do to bleed the system, that way it will get any air out of the system if you hold both levers in Just my 2 cents good luck.

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J Schwiebert

12-18-2006 15:35:14




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
This is 30+ years after the fact, but one of the first applications we had with a 1755 and a hydraulic motor was with a guy who had a hydraulic motor driven grain auger and he would use it to fill a semi. (800 to 100 bu. 50 minutes to fill it approximately) If everything was O. K. the hydraulic oil temperature light would come on when he was about 5 minutes from being finished. So additional oil capacity may become an issue. J.

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e

12-19-2006 10:25:34




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 Re: Running a hydraulic motor off a 1755 in reply to J Schwiebert, 12-18-2006 15:35:14  
Thanks guys. After reading the posts, it seems like there is a descrepency as to if the return should be below the oil level or not. My gut says it will be OK to put the return in the upper plug....any additional comments?



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J Schwiebert

12-19-2006 14:41:56




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-19-2006 10:25:34  
They also made a diffuser to fit in the reservoir to keep from having all that aeration. I would somehow slow the return down diffuser and return it below oil level and as from the suction port as possiable. My 2 cents worth. J.



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CumminsMan

12-18-2006 13:59:55




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-18-2006 10:35:54  
I would plumb the return into the reservoir, oil will get hot otherwise. Use the plug behind and under the seat at the top of the reservoir. Then you can set the flow on that remote so that it will stay detented. Works great.



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klf

12-18-2006 15:59:52




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 Re: Running a hydraulic motor off a 1755 in reply to CumminsMan, 12-18-2006 13:59:55  
What if he put a motor flow control on the input side? Would that help?

P.S. Hey CumminsMan, which Cummins do you like?



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CumminsMan

12-19-2006 06:20:37




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 Re: Running a hydraulic motor off a 1755 in reply to klf, 12-18-2006 15:59:52  
Well lets see, between my dad and I, we currently have 3- 5.9's(two pickups and a tractor), 1-300hp 8.3QSC, and 1-N14. We just got rid of an American 80, and that little 3.9 had 5000hrs on it with no problems. All in all I'd have to say the 5.9 is my fav.



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klf

12-19-2006 19:22:03




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 Re: Running a hydraulic motor off a 1755 in reply to CumminsMan, 12-19-2006 06:20:37  
We used to build the N-14. I build the M11 and the Signature 600. They are also known as the ISM (11 liter) and the ISX (15 liter).



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e

12-20-2006 18:47:06




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 Re: Running a hydraulic motor off a 1755 in reply to klf, 12-19-2006 19:22:03  
Do you work at CEP in Columbus?



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klf

12-21-2006 17:55:51




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 Re: Running a hydraulic motor off a 1755 in reply to e, 12-20-2006 18:47:06  
No, I work at JEP in Jamestown.



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e

12-21-2006 20:13:48




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 Re: Running a hydraulic motor off a 1755 in reply to klf, 12-21-2006 17:55:51  
After I sent that response, I realized I made a mistake and should have said JEP. I used to work at Cummins on the DCX engine at Oly. I designed the crankcase emission system for the MY07 engine.



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CumminsMan

12-20-2006 09:23:59




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 Re: Running a hydraulic motor off a 1755 in reply to klf, 12-19-2006 19:22:03  
I wouldn't mind having an ISX in the next truck. I haven't been overly inpressed with this N14 SelectPlus, just nickle and dime stuff. I kinda want to go back to a Yellow motor.



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klf

12-20-2006 14:53:16




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 Re: Running a hydraulic motor off a 1755 in reply to CumminsMan, 12-20-2006 09:23:59  
Try an ISX first. You probably won't be able to get a yellow one for a while.



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