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How slow should hydraulics be?

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Mike

01-27-2004 11:21:02

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When it is cold like in Iowa now, 20 degrees F, how does that impact hydraulics?

Last night I went to push snow with my rear blade and I couldn't get my loader arms up, made it kind of hard to steer!!!!

Tractor sat for about 30 minutes idling and hydraulic pump was making sounds, I figured it was trying to push the cold hy-tran through the system. I worked the controls back and forth on loader and 2 point. After awhile it came too and they worked fine, but sluggish.

Normal behavior?

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Nebraska Cowman

01-27-2004 15:36:11

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Re: How slow should hydraulics be? in reply to Mike, 01-27-2004 11:21:02

I have to agree with the others. not normal. I use IH Hytran and don't notice much difference unless it gets below zero.

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Dieselrider

01-27-2004 14:21:28

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Re: How slow should hydraulics be? in reply to Mike, 01-27-2004 11:21:02

I agree with the others that sounds like water in the system. One thing to add, when you do the change either do it in a heated shop or warm the tractor up to get the water thawed. If it's in the lines and froze up it won't all drain out and you still may have the problem. Just my $.02.

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Hugh MacKay

01-27-2004 15:32:44

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Re: Re: How slow should hydraulics be? in reply to Dieselrider, 01-27-2004 14:21:28

Deiselrider: That is an excellent point. I once did my Farmall 300. Had no heated shop in those days, put it right in the warm barn with the cows for three days.

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Hugh MacKay

01-27-2004 13:04:39

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Re: How slow should hydraulics be? in reply to Mike, 01-27-2004 11:21:02

Mike: Sounds to me like water in your hydraulic oil, or wrong type of oil. Moisture in the oil will freeze in the filter. Your best move will be to get new filter and do a hydraulic oil change. From your description it sounded like a 240, 340, 460 or 560. Use nothing but hy tran hydraulic oil from CaseIH or be absolutely sure you have a perfect match for hy tran. I find oil companies are very cavalier on this one, they think close is good enough. I had this one cost me new pumps for 300, 560 and 656 all within two months of the change over. Turns out the oil was no where near hy tran specs.

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Mike

01-27-2004 13:27:54

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Re: Re: How slow should hydraulics be? in reply to Hugh MacKay, 01-27-2004 13:04:39

Thanks Guys,

I have a filter and have been intending to change it since last fall. I also need to change the oil. I was told to only use Case IH Hy-Tran, and thus far that is all I put in it.

I kinda figured some water was in it.

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Ben in KY

01-27-2004 12:15:29

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Re: How slow should hydraulics be? in reply to Mike, 01-27-2004 11:21:02

My 444 does not have any hydralulic problems so far. I have run it down to 0 f. I just let it run for about 5 minutes and it is just slightly slower than in hot weather.

You might have a partially plugged filter or screen. Or maybe need to change the fluid. Also might be sucking air at some fitting on the suction side of the pump. This might only happen when the oil is cold and thick.

Good luck, sounds like it needs some kind of attention.

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RIVERRAT

01-27-2004 11:31:44

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Re: How slow should hydraulics be? in reply to Mike, 01-27-2004 11:21:02

Normal, yes, but not that bad. Sluggish is normal, but not working is a different story. Need to use a lighter weight oil or you need filter changes. Our 966 would always work no matter how cold it got. Even at 10 below. Only thing that wouldn't really work is the 3 pt. wouldn't lower when it's that cold. Bucket worked fine, we just took it easy on it. Could hear the engine work a little moving the thick oil, but that was it. Still had all the power, etc. Only lose hydraulic power when it gets really hot and thins the oil out, thus losing pressure.

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