Vane hydro pump on Jube.

This tractor is in good shape overall. I checked all the week points that you gave gave me, ie. cracked axel housings, rusted tool box etc.. BUT... it does have a vane pump.

Are these pumps more likely to go out than the piston pumps? I know they are almost impossible to fix and the conversion to a piston pump is $pendy.

How do I determine if the pump is weak or needs replacing? I think I can get a good deal on this tractor but I do not want to get in over my head.

Before I buy it, I am going to hook it to something heavy, run it up and down hills to make sure the gov. is working and run it warm, make sure everthing works then shut it off and start it again.

Any other suggestions are welcomed before I jump.

Andy MN

The Absolute Worst that could happen is that the vane pump could go TU the day after you buy it. In that case, your solution is to retrofit a later-style Vickers gear pump - there is a direct drop-in replacement. You'll also need an adapter manifold between the new pump and the old hydraulic lines. Best price anywhere on the pump is $325 from John ToTG, the manifolds are cheapest at CT at about $90, last I looked.

The vane pumps can be rebuilt but you need to find someone who knows what they're doing, and a rebuild will likely cost you a couple of hundred bucks.

HTH

llater,

llamas

You need to get the tractor good and hot to see if the pump gets weak when hot. That is the tale tell thing. They will usually work OK cold but as they get hotter they get weaker is they are about shot.