MF 590T hydraulics

[john smith 124]

We’ve got a 590T 4wd from 1981. It has a loader and is operated by the two spool valve levers. I’m wondering what position of the hydraulic controls is the correct position for using the loader. It has the hydraulic quadrant and a selector lever with external 1, neutral external, and external 2 positions, which of these positions should the tractor be in for loader work and does the hydraulic quadrant position effect the loader?

 

[MF-ANDY]

If you're 590 has an auxiliary pump which I'm sure it will have then the spool valves should be fed from that making them independent of the linkage, in which case just leave the selector valve lever in linkage, the position lever in the transport position and the draft lever in the up position.

 

[john smith 124]

Thanks, what about the selector lever?

 

[MF-ANDY]

Leave it in linkage position

 

[john smith 124]

There are only three settings, I’m not sure what they do, they are labelled ext2, ext1, and external neutral.

 

[MF-ANDY]

External neutral (the middle position) is linkage. But as said if your spools are piped from the auxiliary pump it dosent matter

 

[john smith 124]

Thanks

 

[john smith 124]

Which position would allow me to use the spools without actuating the loader because they use the same control lever

 

[MF-ANDY]

You will need to unplug the loaderpipes or fit taps in the loader pipes