In Reply to: Re: Golden Jubillee hydrolic pump posted by Ultradog MN on July 30, 2020 at 15:46:58:
The hydraulic "manifold" on an NAA is just a set of steel tubes that run under the tractor. The only difference between the piston and vane pump manifolds is the flange on the pump end. You can buy a new piston pump "manifold" for about $350. Alternatively you can buy a $60 conversion flange for your old vane pump manifold. You then cut the vane pump flange off the tubes and weld or braze the new flange on. Not a job for an amateur and the services of a professional welder are recommended. Once you have the manifold converted a commercially rebuilt piston pump will run you another $800 plus.
In other words expect to spend something north of $1200 for a conversion.