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Case 2590 tractor hydraulics
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Dave Paasch
Posted 4/18/2010 13:09 (#1166206)
Subject: Case 2590 tractor hydraulics



Dickinson, ND
I have a friend with a new Brandt sprayer that he wants to use a Case 2590 on. The tractor is a 1984 model.

"It's a Brandt SB4000 sprayer... After reading through the sprayer manual and the tractor manual, I've figured most of it out - the tractor has flow control adjustments on each remote that can be used to set pressure on the pump and the speed of the booms folding, etc.

The only thing that I can't figure out is where we can hook up the 3rd hydraulic line coming off the orbit motor - where there is a place to dump oil back into the transmission... Also would like to know for sure what type of hydrualic system the 2590 has - just "closed center" or "pressure compensating" or "load compensating" - - the book says the last two need special valves added on to work."

Can anyone help with this?
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milofarmer1
Posted 4/18/2010 18:10 (#1166458 - in reply to #1166206)
Subject: Re: Case 2590 tractor hydraulics



Farwell, TX/Pleasant Hill, NM
I used a 2390 for several years to run the sprayer. I just made sure the bypass on the orbit motor was closed (if it has one) and used the hydraulic flow control on the tractor to control the pump speed. Seems like I ran it nearly all the way closed. I closed it all the way to the slowest setting then it was about 3-4 'clicks' up from bottom. I also just ran the return on the pump right back to the remote. Never had a problem with heating the oil.

I did have trouble with the remotes not staying locked on when you shifted the power jerk transmission. I had to set the detent a little tighter. That is the screw with the lock nut in the bottom of the remote valve under the cab. It only needed about a 1/4 turn in. Still kicked out sometimes so I had to watch it.

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raider2b
Posted 4/18/2010 18:25 (#1166476 - in reply to #1166206)
Subject: Re: Case 2590 tractor hydraulics


North Dakota
The later 90 series had a 3/4" pipe fitting in the PTO cover that you can run a case drain line into.
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Dave Paasch
Posted 4/18/2010 21:38 (#1166710 - in reply to #1166206)
Subject: RE: Case 2590 tractor hydraulics



Dickinson, ND
Thanks for your replies, I'll see that he gets them. Much appreciated!
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