Hydraulic lesson

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Hydraulic lesson

Postby slingblade » Sun May 21, 2006 3:30 pm

Can someone give ma quick hydraulic lesson. After using my tractor for awhile Saturday pulling a landscape rake the rear lift started getting slower, and slower to lift and sometime would not lift at all or would require almost full throttle. I remember a farmer at the lcoal dealership cussing the fluid. Like he didn't think too much of the type of fluid or something. (F-130)
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Postby jostev » Sun May 21, 2006 6:56 pm

most likely you have somewhat of a slow leak depending on how long it takes to leak out, but you might just need to put more fluid in, i use hy-tran or regular hydraulic oil in ours, works great, ifn the lift pistons or hydro pump doesn't leak :oops:

good luck

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Re: Hydraulic lesson

Postby George Willer » Sun May 21, 2006 7:18 pm

slingblade wrote:Can someone give ma quick hydraulic lesson. After using my tractor for awhile Saturday pulling a landscape rake the rear lift started getting slower, and slower to lift and sometime would not lift at all or would require almost full throttle. I remember a farmer at the lcoal dealership cussing the fluid. Like he didn't think too much of the type of fluid or something. (F-130)


Did you find out whether the expert farmer thought one fluid was more compressible than another?

Your problem is most likely related to a low fluid problem. :(
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Fluid

Postby Ron Thomas » Sun May 21, 2006 8:04 pm

Way to go, George!
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Postby Virginia Mike » Mon May 22, 2006 7:53 am

If operation returns to normal after it cools down You may have pump or valve wear that shows up when the oil is hot and thin.
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Postby Matt Kirsch » Mon May 22, 2006 8:08 am

Not to insult any of the resident "old farmers" on this site, but you usually cannot put much stock in what they say when they "curse" something. This goes for people in general, actually. Usually, they're speaking in vague generalizations about subjects they know little or nothing about... They had one problem, one time, that was probably due to their own complacency or neglect of proper maintenance, but it's the hydraulic fluid's fault, therefore all hydraulic fluid is junk.

If you don't discover a low fluid problem, then you likely have a weak hydraulic pump. The pump works okay when the oil is cold and thick, but as it thins out, the pump is worn just enough that it can't develop pressure.

Be aware that if you have a fluid level problem, that fluid has to be going somewhere. If it's not dribbling out on the ground, then it's probably running into the crankcase.
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Postby slingblade » Mon May 22, 2006 8:48 am

Are these pumps rebuildable by the owner? Also I remember the PO told me that he had put a new gear in the pump so it may be just low. I just returned from NAPA and they sold R&O hydraulic oil, but somewhere I heard that you use 10/30 engine oil. Which is correct??
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HY-Tran

Postby Charles (49) Mo » Mon May 22, 2006 5:20 pm

Use hy-tran...
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Postby slingblade » Mon May 22, 2006 6:29 pm

Sorry I don't know what Hytran is?
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Postby Bigdog » Mon May 22, 2006 6:35 pm

Hy-tran is IH hydraulic fluid. You can use hy-tran or it's equivalent in the touch control system. I believe the standard is MS 1209. If you opt to use motor oil, it must be non-detergent oil. Detergent oil will foam.
If you go to a store such as TSC and look for hydraulic fluid that is MS 1209 compliant, you will be ok.
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Postby slingblade » Mon May 22, 2006 8:50 pm

Thanks B-D
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Postby Matt Kirsch » Tue May 23, 2006 8:32 am

R&O is the absolute wrong stuff.

Even WalMart, at least the one close to home for me, has two types of hydraulic fluid on the shelves. One is the MS1209, I think it's called "Hydraulic/Transmission fluid" (i.e. HyTran) and even lists IH on the back, and the other is just labeled "Hydraulic Oil" (I believe it's the R&O stuff). Comes in 2-gallon jugs.
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Postby slingblade » Tue May 23, 2006 1:58 pm

It states on the label for farm equipment and other hydraulic systems, but does not state MS1209
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Postby George Willer » Tue May 23, 2006 3:26 pm

slingblade wrote:It states on the label for farm equipment and other hydraulic systems, but does not state MS1209


It's probably more compressible. :D
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