Posted by mowr on July 05, 2009 at 17:39:17 from (67.96.1.223):
In Reply to: TC30 Hydraulics posted by coreyc on July 05, 2009 at 09:38:48:
Correct me if I'm reading this wrong but I assume by your description "cavitation noise" that you mean a loud whine that rises in pitch and volume as engine rpm increases. That would sound to me like air in a hydraulic system. If your power steering system has its own reservoir, have you checked/changed the fluid in that and is it time to change that filter? Might there be an air leak in the suction circuit; transmission to hydraulic pump? Maybe in the form of a bad o-ring, pump seal, damage to or rust pinhole in the steel line, loose fitting, etc? Look for the simplest things first, of course. I believe New Holland has their parts available online. If so, you may be able to find answers there and at other online forums. Keep us posted.
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