Wouldn't that cause it to not work all together? It works when the blades are engaged outside of grass and has full power, when I creep into the grass it starts to bog down and wants to proceed to kill the engine unless I turn the blades off. All blades spin freely by hand. Seems to get worse...
PTO to me means engaging the blades, but yes it is all hydraulic driven. I'm thinking it the hydraulic motor as well, which I believe is located under the seat?
I assume you're speaking of the main hydraulic pump? Even if I have the right deck up, I'm still having the issues. It's only when the PTO is on and drives fine with full power when PTO is off.
I was mowing yesterday and I caught a branch and wedged in between the blade and mower deck on the right wing and it stopped that motor from spinning. I removed the branch and and it worked fine as it should. 15 minutes later I went through some thicker grass and it tries to bogg the motor...