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Farmall & IHC Tractors Discussion Forum
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hot hydraulics

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Don Benson

04-19-2007 09:36:09




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The Hydraulics on my 300u are running very warm, hotter than I care to touch after running an hour or so, system is full, vent is good. It works great no noises ect just very warm, is this considered normal for an engine driven pump




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Don Benson

04-20-2007 06:19:06




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
I would agree the utilities dont hold enough fluid, I am only using a lift on the unit, I was just concerned, THANKS for the info it runs below 160 degrees so i think it is ok , in dont want to ruin the pump!!!



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georgeky

04-19-2007 19:02:37




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
Hugh is exactly right, they simply do not have enough resivoir on them. I have ran my Super C while mowing in tight places with a cycle mower and had hydraulic oil boiling in it. Once it cools it is fine. It is normal for them to get fairly hot when used a lot.



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Hugh MacKay

04-19-2007 15:17:39




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
Don: Most of the IH live hydraulic systems from the early to mid 50s ran quite hot especially if your operating a loader. IH reservoirs back then were just too small. If your doing a lot of hydraulic work, it's best to add more reservoir. I've seen 300 hydraulic lines to the pump so hot they would burn flesh, and this was when the tractors were new.



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JayWalt

04-19-2007 11:25:37




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
still havent said what is all on the hydraulic system. If just the fasthitch is on the hydraulic system, then the hardlines will be warm, but not hot. If you have power steering, it will add some heat, and a loader as well. If the hardlines are just plain warm, there is nothing wrong, You should be able to hold your hand on the lines for a decent time before it becomes uncomfortable. I would say anything above 150-175 degrees would be a cause for concern. Compressing hydraulic fluid generates heat, so heat is expected. If all of your hydraulic devices are working good, then you should be good.

Let's put it this way, when my pump was deadhead cycling, the hardlines got so hot i couldnt even touch them for more then a few seconds. If they are just warm, they are fine.

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Don Benson

04-19-2007 10:17:36




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
The hard lines and the tank it self get warm, engine is fine no laboring



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Don Benson

04-19-2007 10:17:30




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
The hard lines and the tank it self get warm, engine is fine no laboring



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yWalt

04-19-2007 10:10:29




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 Re: hot hydraulics in reply to Don Benson, 04-19-2007 09:36:09  
do u mean the pump itself, or the hardlines to the resevoir? If you are not constantly using the hydraulics in some way, the system should stay relatively cool. They should be warm to the touch, but not hot, as the hydraulic pressure on the system with no load is 30-60psi, which isnt much to generate heat. Does the engine seemed to be labored? what all is on the hydraulic system? If the system is in constant use, the lines will get fairly warm, maybe even a little hott, but if they are seldon used, and still are hot, something is wrong with the system and should be addressed promptly.

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