Burning hyd oil?

hoosierhog · Apr 24, 2012

Is it possible to be burning hyd fluid in a Oliver 1850. It docent smoke when running and there haven't been any drop in fluid level. Just hyd system is hot to the touch. And I was told I was told I could be burning oil but I don't see how. Any advice?

JOHNNYfromMI · Apr 24, 2012

Hot? Normal.
Is the oil turning black from heat?

Mike (WA) · Apr 24, 2012

Burning hydraulic oil? There's no connection between hydraulic system and the engine on your tractor, so no way for it to get into the engine to be burned there.

Hydraulic system will run "hot to the touch" normally (and the more you are using the hydraulics, the hotter it will run), but could be too hot if you have some blockages causing a relief valve to be activated. About the only way to check is to have a shop with the proper equipment check pressures in the system.

Don't take it to the guy who suggested its burning the fluid.

David G · Apr 24, 2012

Hydraulics will get hot to the touch when running. Someone might be able to post a normal operating temperature.

Gun guru · Apr 24, 2012

Normal operating temps for hydraulic systems are between 120F and 140F, in the winter it would be colder obivously.

rustred · Apr 24, 2012

if its running over relief you will create heat.as suggested normal is 120-140 degrees. but it may be getting to 180 which is not good as then you will be getting o-rings brittle. also if its hot to the touch its too hot.you also should be able to hear if there is a function on and its squeeling.

rrlund · Apr 24, 2012

Those do seem quite hot what with being right there between your feet and all. Did you check the free travel of the 3 point like JS suggested? There's a little turnbuckle in the linkage that needs to be adjusted to make that right.

farmer boy · Apr 24, 2012

Not exactly on Trans hydraulic oil, but I know ATF can safely be heated to about 210F before the oil is fatally damaged. Transmission life suffers if taken past 175F. I don"t think hydraulic fluid is quite as tough. I"ve heard before that oil life is cut in half for every 10F above 140F.

Jerry He · Apr 24, 2012

Not to be a smart arse but years ago I was around an 1850 that was loseing hyraulic oil with no leaks anywhere. The tractor always used some oil but stopped about time the hydraulic started getting rid of oil. The line going to the power steering ran by the dipstick tube and a hole was worn in both letting hyd. oil into engine.

Mike (WA) · Apr 24, 2012

Wow, that's obscure. Glad I wasn't the guy trying to figure that one out.

One of my first tractor repair projects was a JD 420 that was "making oil"- Neighbor looked it over, smelled the oil and it didn't smell like gas, so opined that the block mounted power steering pump was the culprit. Quite a project to get at it, but that turned out to be the problem.

pete 23 · Apr 24, 2012

IH always said normal hyd temp was l00 degrees plus ambient temp. I personally find that too high but it is not high enough to harm o-rings but too hot to take hold of. A gauge plugged into system between pump and valves will quickly show if pressure is being created causing excess heat.

mkirsch · Apr 24, 2012

You understand "burned the toast" or "burned the rice" or "burned the steaks" or "burned the pie" right?

"Burned the oil" is no different. You're not actually consuming the oil like a piece of firewood or charcoal. It's simply gotten too hot.

ldj · Apr 24, 2012

(quoted from post at 07:30:09 04/24/12) Is it possible to be burning hyd fluid in a Oliver 1850. It docent smoke when running and there haven't been any drop in fluid level. Just hyd system is hot to the touch. And I was told I was told I could be burning oil but I don't see how. Any advice?

That is a very strange question to me. Why would you or the other person think it was burning the oil when it doesn't smoke or oil level isn't going down? Even if it was possible to burn the oil, yours isn't. How could you burn oil without smoke or oil level going down?

Jerry/MT · Apr 24, 2012

Hydraulic fluid will get hot just by running through the pump. If the pump is 70% efficient, that means 30% (100%-70%) of the input work will be converted into heat and the fluid will get hot. The same is true of the transmission and rear axle oil even when they have separate reserviors.

greygoat · Apr 24, 2012

SAE rated O-rings (automotive and heavy equipment
rated--NOT Plumbing- or Hardware store O-rings)
Should be rated for at least 300 degrees.
If you need O-rings get them from an Auto or
equipment dealer. Most hardware store carry
plumbing type O-rings..sizes may be similar, but
specifacations (material they"re made from) are
different,(usually not petroleum rated)

jm. · Apr 24, 2012

Dealer service permissible for transmission and loader on new KUBOTA,s is 100 deg over the ambient temp so on a 80 degree day you could see 180 deg operating temp. Untill it exceeds that it is assumed to be normal. That is not to say we see a lot of that kind of temps. I would say you have a relief valve stuck or some orfice causing you fluid to heat up but no fire or you are not burning fluid. Pretty simple to get a themoter and take a good reading see excatly what temp you are running.

OliverGuy · Apr 24, 2012

My 1850 and 2255 were always hot. The light even came on in the 2255. I was also running the cheapo hydraulic fluid. Changed to case ih fluid and the 2255 never got that hot again. They will get somewhat hot though, reservoir is small.

casecollectorsc · Apr 24, 2012

Thin weight oil will actually stay cool longer. Easier to remove heat from thin oil when going thru cooler.

was Jdtractor · Apr 24, 2012

quick rule of thumb concerning temp is "you can hold for 5 seconds at 140 degrees in bare hands"worked on a lot of hydraulic equip and thatwas what the manufactres said

Burning hyd oil?

hoosierhog

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