B7100HST 3PH Arms won't lower

[tuppy]

I've moved the valve left and right (it was very tight and hard to move) until it got loose. Still no luck. Also loosened bolt on top of hydraulic pump until fluid flowed and then reinstalled. Nothing, again.

 

[crbr]

I think I'd call a Kubota dealer, ask for service, and ask away. Someone there may be able to readily offer up a fix.

 

[tuppy]

Looks like my best bet at this point! Thanks, all....