John Deere 2040

[Slowlk]

Hi gays any one know why when I start my John Deere 2040 blows hydraulic filter gasket many thanks

 

[Tx Jim]

Is your tractors serial # below(open center hyd's) or above(closed center hyd's) serial number 266750??? Are you utilizing correct quad ring(R34733) on filter cover?

 

[Slowlk]

Is your tractors serial # below(open center hyd's) or above(closed center hyd's) serial number 266750??? Are you utilizing correct quad ring(R34733) on filter cover?

I check number tomorrow, I知 not sure now. U not things any Valve is faulty in filters bypass or valve on the top lid gearbox ?many thanks

 

[Zebrafive]

My first thought is plugged filter and stuck/plugged filter bypass, OR wrong oil being used.