Case 770 hydraulic issue

MAH · Aug 29, 2015

Hello, I have question about an issue I am having with my tractor. I am round baling hay with my 3450 softcore baler and when I try to open the baler which is retracting the cylinder it is extremely slow. But, when it is time to close the baler it is strong (like normal) closing the baler. So, what could be causing this for me? Here are some of ideas I have been told that could cause the problem. 1st) I have been told there could be air in the system. 2nd) I have been told there could something plugged like line or filter. If the pump is weak wouldn't it be weak extending the cylinder also? It is very strong extending just weak/slow retracting. Any help would be very much appreciated. I have baled about 122 rolls so far since purchased this tractor a little over a month ago. When I first started baling with it the hydraulics worked great and now it has this issue. It malfunctioned one time the first I used it but it was because the second aux lever would vibrate until it engaged. I fixed that by tying it in place. Then no problems until yesterday.

Adirondack case guy · Aug 30, 2015

You may have a coupler that is not opening properly when coupled. Try switching hoses from side to side and see if problem switches when lever is moved the oposit direction.
Loren

MAH · Aug 30, 2015

I have switched and still the same. So what do you think my next step should be? Try bleeding system? If so, where is the best place to bleed the whole system?

1370rod · Aug 31, 2015

You never have to bleed these systems and if one works good the pump is OK. Those remote valves have check balls and thermal reliefs which I would guess one is leaking. If you could install a 3000 psi gauge on a male coupler and plug into the individual couplings you could determine which ones do not develop pressure and therefore would know which one needs servicing. Rod.

Case 770 hydraulic issue

MAH

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Adirondack case guy

Well-known Member

MAH

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1370rod

Well-known Member

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