Well if your not a wrench man, you will be soon. I would first check the oil level in the shuttle, this is the dipstick on the engine side of the gear shift lever, the other is to the rear and it's for the trans/rear end. The shuttle level is when you start and run the machine till it warms up, then shut the machine off and check the fluid level (immediately) with the dipstick, add fluid as needed. Check the breather on the converter valve. If the fluid looks like milk, it will need a filter and change. Their are lots of posts on here for the 580ck and the 580B with some very good picks. Packratc did a long one, and several others telling and showing where to drill to work on the pickup tube screen and so on. I would try and find a service/parts/operators manual as soon as possible for your machine, you will need them also along your adventure. As oil gets warmer, it gets thinner, leakage is greater and pressure drops, their is also a adjustment for the dump valve on the clutch pedal, spring must pull this pedal up and not cause it to hold pressure against cam. Lots to read about, and you will have to be our eyes and ears since your with/at the machine. Hope this gives you a start, a lot of good help can be found here with the members on this site.