Quote:
Originally Posted by cooperino
I am not familiar with this machine. However, If it is hydro static it should have similar relief valves as other types of cubs. Locate the relief vales and see if one of them is wet with hydro fluid. If not it could be a bad relief valve.
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Zero turn mowers have two transmissions, one for the right and one for the left axles. These hydros are of the newer style and do not have external relief valves, just rods and levers to release it internally.
Since the problem is only in the forward direction I would look for something control wise that would be common to both transmissions, starting at the forward motion foot pedal. Likely a broken or out of adjustment linkage connection.