Hydraulic Valve troubles

[Dexter4U]

I've been having some issues with the rear remote auxiliary hydraulic valve on my Mahindra 1626, at times it's slow to respond or doesn't hold pressure like it should, I'm using it mainly for operating a hydraulic grapple, and it's been a bit spotty, need ideas for diagnosing the problem and if any maintenance tips can be added

TIA

 

[Back In Chicago]

Hey. It might be worth checking if the couplers are seating fully. There's one time I had mine act up from just a little dirt in the line. Also, if your fluid is even a bit low or old, it'll mess with pressure way more than you'd expect. Watch out for it.