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Case Tractors Discussion Forum
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1070 Flow Divider

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pgarrett

08-26-2011 05:58:41




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I did not find anything obviously wrong with upper check valve.It is hard to say about ball and seat on cold oil relief but it looks ok.(I will get a new ball and try to re seat)The flow divider spool seamed to be dragging hard and hanging up when I slide it back and forth with fingers.I cleaned it up and the bore with fine emery cloth so it moves freely.Found spool spring to be .050 shorter than parts book says.I wonder how accurate the parts book description is?? I will order new spring and compare.

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brokengun

08-26-2011 12:49:38




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 Re: 1070 Flow Divider in reply to pgarrett, 08-26-2011 05:58:41  
.050 shorter is lot for a spring in a relief valve.

Yes replace the spring. i think your on the right track.

For the guy with the IH a flow divider problem. please check the pressure at your hyd outlets and then check that with the recomended pressure.

If the outlet pressure is within 150 psi of recomended pressure then try and reseat the check ball or just replace the ball and spring and seat if the seat is replacable.

if the above doesnt help then Does your tractor have a dual pump. Its possible to have a problem on the power steering side of a dual pump.

If that doesnt get it, then check the relief valve in the steering spool valve.

Steering valves differ but normally there is a dump valve or return pressure valve in the steering system that can cause a low pressure problem/ lack of steering

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Case Nutty 1660

08-26-2011 06:29:30




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 Re: 1070 Flow Divider in reply to pgarrett, 08-26-2011 05:58:41  
sounds like she has been hot and squashed the spring, yes replace it and good job on the polishing the spool, am sure you have but make sure the spool and body is very clean and lube with clean hyd oil upon reassembly, you can check the seat using gas, set the ball in the seat fill with gas ( no smoking or sparks!! ) see if she holds cnt



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Teachingscience

08-26-2011 07:31:44




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 Re: 1070 Flow Divider in reply to Case Nutty 1660, 08-26-2011 06:29:30  
Hi Case Nutty, I asked a question about one of these on the IH board a few months back and couldn't get any help! Would you know anything about the divider on an IH 504 row crop? It divides flow to power steering and I cant get enough pressure to assist steering at all. I and polished the sleeve so it would move freely ( it was stuck) the spring pushed it out easily after that and the check was a kind of stem with a spring and screw inside that slid in behind the connection leading back to the tranny case. It has flow but not enough pressure to help steering. ANY advice would be welcomed.

Thanks
Charlie

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Case Nutty 1660

08-26-2011 10:43:16




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 Re: 1070 Flow Divider in reply to Teachingscience, 08-26-2011 07:31:44  
Charlie, don't think I have worked on a 504 divider valve before but lot of guys here probly have, first is the pump putting out the pressure and flow the system requires? I had a 560 and it had some issues with the suction side of the pump not sure if you have that type or maybe you already have been there, have you checked the free lenth of your spring in the divider? as stated on 1070 prob heat/and or the spool being stuck can cause them to become "soft" and not give you proper flow, also are you sure the steering system is operable?? hope this gives you some areas to check you may not have thought of yet cnt

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teachingscience

08-26-2011 20:06:15




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 Re: 1070 Flow Divider in reply to Case Nutty 1660, 08-26-2011 10:43:16  
Thanks, no, I"m not sure the steering is working. Just hoped that since the spool was stuck that loosening it would solve the problem. I know the pump works because the other side of the divider supplies the aux and they work the baler and cutter fine. However, I have no idea yet if the pressure is up to specs or not. It"s my best friends tractor and he depends on me for mechanic help and this tractor is new to me and I have never worked on a flow divider before.

Thanks you all very much

Charlie

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