Steiner charge pump - Can it be rebuilt

   #1  

SteinerGuy

Member
Joined
Jun 18, 2016
Messages
29
Location
Wakefield QC
Tractor
Lamborghini Runner 450, Steiner S-20
Hi all,

I have a charge pump issue it seems with my Sunstrand 15 unit on a Steiner S-20. Steering effort is pretty high now, and it has trouble lifting the deck off the ground. I changed the filter and it had no effect. I will check hydraulic the relief valve but I don't think that will be the issue (the issue is worse when hot - seems like a worn pump to me).

A few years ago I had successfully rebuilt the rear drive motor by lapping everything, it worked great. I have a high pressure filter setup to clean everything out once I service the drive.

It looks like there is a charge pump cover, the charge pump gears, and the surface of the pump. Is there a way to recondition these parts at home, or am I stuck replacing them? Wondering if it would be worth trying to lap the gears and the main pump casing surface (I can't lap the surface in the cover as it is recessed).

Thanks
 

johara1

Platinum Member
Joined
Feb 21, 2003
Messages
888
Location
western pa.
Tractor
Ventrac 4500P
Why not take it to a hydraulic repair shop and see if they can rebuild it.... Jim
 
 
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