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Case Tractors Discussion Forum
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SC hydraulic spec's

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Don NY

09-23-2007 13:40:51




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I have a late model (1953?) SC with eagle hitch, etc. Does anyone know the hydraulic pump output pressure and GPM's? I want to size a hydraulic motor to use with it. Can the pressure be adjusted up safely at all?




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fixerupper

09-24-2007 08:42:45




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 Re: SC hydraulic spec's in reply to Don NY, 09-23-2007 13:40:51  
I took a peek at a IT manual and it stated a pressure of 980 - 1130 PSI. but it did not give flow data. The SC I have seems to have a fairly fast pump for a tractor it's size. Yes, you will overheat the oil if you run an orbit motor constantly for more than five or ten minutes, but it will work for short periods. The SC has a pilot operated relief valve, meaning when the relief hits it's opening pressure and cracks open, it dumps almost all of the pressure and doesn't re-seat until you return the hyd control lever to neutral to reset it. If your hyd motor hits enough of a load to cause the relief to pop, the motor will stop until you recycle the lever. Jim

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bradley martin

09-23-2007 18:35:24




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 Re: SC hydraulic spec's in reply to Don NY, 09-23-2007 13:40:51  
You can NOT run a hydraulic motor off the SC for any length of time as the oil rewevoir is too small and will rapidly overheat!!!.



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fixerupper

09-23-2007 15:00:40




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 Re: SC hydraulic spec's in reply to Don NY, 09-23-2007 13:40:51  
Can't help you as far as the GPM's go, someone else on the forum should know something about that, but I do know you DO NOT want to up the pressure. I shimmed the relief valve just a little bit on an SC and the pump split open. Ouch! Jim



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