NH T7050 Spool valve/hydraulic problems

[mtx135]

Ok so my electric spools are playing up. The brown has always been touch and go but now they all do strange things. Sometimes they pump one way then cut out, sometimes if you tip a trailer then put them in neutral the trailer drops and sometimes 2 don't work at all.
I also don't seem to have much pressure at the spools anymore. Is it possible this is all one problem or a coincidence.
Sorry for the long post thanks in advance.

 

[forblue]

Had this on a n/h ts135a suggest you check hyd filters, if starting to get blocked [cut them open to check] brake discs are worn out.......

 

[cosmagedon]

I would hazard a guess that the pump compensator valve is playing up, we've had to change a few on our T7's and on 1 tractor it was always 1 spool playing up trying to lift the mower when hot. Roughly £400 on stock order but a bugger to get to to change.

When you say they pump one way and then cut out, you haven't got timers switched on have you? I've seen that catching people out before when they haven't selected the correct implement in the intelliview.

 

[mtx135]

Thanks for replying.
Is there anyway to check the compensator valve? That someone more farmer than engineer can do.
No I've checked there not on timed it just seems odd they do it completely randomly either hot or cold. When they pump and cut out with a double acting ram in it's like they won't let the oil back and they are struggling. If that makes any sense.

 

[miniconnect]

Ok so my electric spools are playing up. The brown has always been touch and go but now they all do strange things. Sometimes they pump one way then cut out, sometimes if you tip a trailer then put them in neutral the trailer drops and sometimes 2 don't work at all.
I also don't seem to have much pressure at the spools anymore. Is it possible this is all one problem or a coincidence.
Sorry for the long post thanks in advance.

Our case was doing similar, it's possibly the spools not centralising themselves correctly. And then the electrics detect it's moved to far and cuts it out to save itself. Under the electric Gizmo on the spool itself there's some kind of screw to adjust out the wear, I'm told it's only a fraction of a turn either way it needs adjusted. I think our mechanic used the laptop to get it perfect but it can possibly be done without?