Case 801b hydraulics

Daniel waldner · Jun 10, 2019

I was cutting hay last week with my case 801b and nh 492 and after about 3 hours the hydraulics got slow lifting the mower and then wouldn't lift it at all and the pump is too hot to hold your hand on. Called John Saeli and he told my to add two qt of gear oil. and then I mowed for about 2.5 hours and it started to get slow but i finished before it quit. Any thoughts about what next to do? I thought about trying synthetic oil, Would that help?
Thanks

John Saeli · Jun 10, 2019

Daniel: I get a lot of calls and it is hard to remember, but if you had told me the pump was too hot to put your hand on, we would have talked about it. Should never get that hot, unless you are running a hydraulic motor, and it WILL burn up your pump, or one of the valves is not returning to neutral.

jon f mn · Jun 10, 2019

Make sure both valves are in
neutral, to get that hot
something is bypassing. Or you
could be low on oil.

Daniel waldner · Jun 10, 2019

Yes John you said to make sure the hydraulic levers are it neutral Which they are. I have the hydraulic swing on the mower hooked to the auxiliary hydraulics and to lift the mower I put a coupler on the hose that lifts the 3pt. The return on the lift cylinder does not return to the tractor. Does it need to? It works fine the way it is until it gets hot. Also when I was raking with out hydraulics the pump gets warm but not near as hot as when the hydraulics are hooked up.

John Saeli · Jun 10, 2019

I never hook a 1 way cyl. up to the CASE system. Yes, by all means, run a 2nd line to the lift cylinder. If for no other reason than to rotate oil around more, hopefully keeping it cooler.

Daniel waldner · Jun 10, 2019

Ok will do, and report!
thanks
Daniel

jon f mn · Jun 10, 2019

If he hooked to the eagle hitch lift side the other is already plumbed to return to the reservoir, at least mine are.

Daniel waldner · Jun 10, 2019

Yes but I did not hook the return on the mower to the return on the eagle hitch.

John Saeli · Jun 10, 2019

Yeah, but it is not a circuit.

rfdmn · Jun 11, 2019

I run a haybine with a single action lift cylinder on an eagle hitch 830 with no problems. I hook it up to the lift side of the 3 point and use the float position with the flow control device. I lower the head by putting the control valve in the float position and the flow control allows for a slow smooth drop. I operate the adjustable tongue with the other the 2 way remotes.

John Saeli · Jun 11, 2019

Most likely on your 830, the oil for the tranny, diff. & hyd.'s are all 1 sump, 17 gallons, whereas the 800 hyd. reservoir is only 9 qts.

rfdmn · Jun 11, 2019

Nope, this is the single stick 830 the transmission and hyd are separate resovers.

jon f mn · Jun 12, 2019

Do you leave it in float all
the time?

Daniel waldner · Jun 12, 2019

Well what I do is push the lever all the way back to lower it then push it quickly all the way forward and pop it back into neutral.

rfdmn · Jun 12, 2019

I usually leave it in float. It also works to put it in the center position. If you engage the control to lift and let the detent hold it in that position doesn't the control kick back to center when the relief valve releases?

Daniel waldner · Jun 12, 2019

Pretty sure it does but i'l check.

ron pann · Jun 20, 2019

Using right and left pairs of outlets for hose connections and
not over and under pairs correct?

Case 801b hydraulics

Daniel waldner

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John Saeli

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jon f mn

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Daniel waldner

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John Saeli

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Daniel waldner

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jon f mn

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Daniel waldner

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John Saeli

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rfdmn

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John Saeli

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jon f mn

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Daniel waldner

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rfdmn

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Daniel waldner

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ron pann

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