Hydraulic jerks

[musamike]

I own a refurbished ford 7600 tractor. When I bought it the hydraulic was rising up well. We changed oils both hydraulic engine, to include the filters. For the hydraulic we used about 50l ofspirac 80w 90. Soon after it was not lifting the plough well. It takes time to lift and it does this with jerks. What could be the problem.

 

[oldnslo]

hydraulic system does NOT use 80w 90 gear lube. It should be hydraulic oil.

 

[musamike]

Which one should I use?

 

[PILOON]

Which one should I use?

Universal hydraulic oil. Most auto parts stock in 5 gal pails, Walmart even carries some.

 

[wagne223]

The problem is the 80w-90.
Get that out of there and install some hydraulic oil.
That souls smooth it back out.

 

[Spanner]

Universal hydraulic oil. Most auto parts stock in 5 gal pails, Walmart even carries some.

LOL. I don't know if they have a Walmart in Zimbabwe?

Yes, the 80/90 is your problem. 50L is a lot. Don't waste it. Drain into clean containers and save for use in mower/implement gearboxes or the front (4wd) axle of another tractor if your 7600 is only 2WD. Land Rovers there would use the 80/90 also.

Any hydraulic oil you can get there?