I have a 2007 troy-bilt log splitter, with very little use,maybe (40) hrs. ) Hydraulic oil is beginning to leak out of the top section (of the control valve and is having problems raising the ram, also it won't hold the control lever in the up position (for auto lift control). Should I have to replace the control valve after so little usage or might I have other issues? Any advise would be appreciated. Thanks, Bill