650 new Holland baler

Baled about 15 acres today with it and its doing well howevery hydraulic pressure gauge is sticking around 1300 psi. I had it set around 17 1800 psi for my hay but now its stuck there and doesn't move. It stuck once on first bale then it started working now stuck again. You think that's a faulty gauge is it there still.pressure on belts. It bales the same good tight rolls with it stuck just wish it was moving again

650 new Holland baler