[Bob149]

Well, I pulled the check valves and cleaned them, as Roland suggested. They looked and felt like they worked fine when I pulled them out. I cleaned them thoroughly and reinstalled them. No difference. So, I tried switching one for the other. No difference. Checked the fluid level. It was where it should be. Didn't smell or look burnt. I've read where you shouldn't tow hyrdos without the check valves released. I called the previous owner and ask him if he had done this. He said he had to tow it from his back yard to the garage a few times. I know the valves were not disengaged as the spring plate on the lever is broken. By the looks of the rust where it's broke off, it happened a long time ago. What does towing do to a hydro if the valves are engaged? Should I look for evidence of this? If so where should I be looking and for what? Could the charge pressure relief valve be causing this situation? I did also check the trunion and springs. That all seems to be in good shape and works good. Thanks for any replies.