Toro ZMaster mower was leaking hydro fluid to the tune of 1qt per use. I decided to tear it down and saw that the leak was due to a failed gasket on the L pump. I pulled it apart and replaced the gaskets, and put everything back together. Filled the system with oil and proceded to bleed the system following online manual and forum recommendations. Now, the L wheel has no pull. It moves slowly in F, and barely crawls in R, with the back end jacked up. Any resistance and the wheel will not move at all. The longer it runs, the slower it goes in R, eventually coming to a stop. The pulley and pump is the ONLY thing taken off and repaired. Any thoughts? (Pulley was removed to access the pump)