New Idea 4160 rake adjustments

Typically I rake with my Miller Pro 18 wheel rake but have decided for drying purposes to rake individual windrows on day 3 then pull them together with my wheel rake. Only rake I have capable of just doing one windrow is my new idea 4160 hydraulically driven. I'm not familiar with adjustments as far as pitch of bars, speed of hydraulics vs ground speed, etc. Not sure on what speed I can run it. I don't have an operators manual so figured I'd pick your brains. Obviously the faster I can run the better to cover 100+ acres. I know a rotary is the best option but that won't be till next year. Thanks!

New Idea 4160 rake adjustments