deere 260 auxillary pressure

Hi fellas...

Hoping someone can help with advice

I have a deere 260 skid steer. I noticed the pressure on the auxillary loop was high when running a wood process processor....actually just hooking up the processor and starting flow....not doing any cutting...tbe pressure through the loop was 800 feed to 600 return.

I disconected the processor and ran a short 1/2" hose from feed to return with a pressure gauge in between. It was 600 psi.

I have a restriction somewhere..... any advice where to begin trouble shooting this?

I changed the filter with no better results...

Thanks for any help.

Hartwa

deere 260 auxillary pressure