Hydraulic problems 6945

Hi Guys, it`s a long time gone since i was last at Zetorworld. my 1976 Zetor 6945 is working well, but some times i got hydraulicproblems with the loader, I guess the problem causes of a weak pump. Does anyone know, what typ of hydraulicpump is mounted and if it`s posible to change to a bigger one. If yes, please tell me which kind is best to use.

Thanks in advance from Germany
Dieter

Use the later pump part number 7011-4610 it has 10 litres/min more capacity than the original