What are the hydraulic requirement for Naarva stroke harvesters?

The recommended hydraulic specifications are:
· S23C 40 – 60 L/min and 170 – 200 bar · S35C 50 – 70 L/min and 180 – 210 bar
Feeding hose 1/2″. Return hose min 1/2″ but to avoid excessive back pressure, return hose of 3/4″ is recommended.
It is recommended that the Grapple CLOSE / OPEN function is controlled by 2 buttons. Pedal should be avoided.