So, here's the issue. I was digging a hole and lost all hydraulics. Turned out to be the plastic coupler between the flywheel and the pump. Less than 2 hours later, same thing happens again. There was a 'hum' that started whenever I'd use the thumb which turned into every other control too, but it was very intermittent. Sometimes the thumb would do it, other times it wouldn't. I'm assuming that there's definitely something wrong with the pump that it wouldn't tear the coupler apart only after 2 hours, but where do I go from here? Is there a way to test a pump to see if something has a little play that's causing it to tear the coupler up? Thanks!