I found somewhere on the net that a 35l pump on a Yanmar F7 tractor. In one of the forums someone wrote to me that the pump designation was DW1-C-7A. I checked in the spare parts catalog for the tractor and it is true DW1-C-7A 119807-26010. I found quite a few websites that sell such a pump but nowhere are there any technical features. Since I already have front hydraulics connected to the pump, I would like to replace the existing steering wheel with a hydraulic one, whether I am interested in whether the pump is sufficiently powerful.