Bought my first tractor from a friend, John Deere 2150. I have a few oil leaks that i need to repair, plus wiring issues(rats). I would like to know what manual i need to buy that tells me how to make repairs to hyd pump, and how to get to it. I think one of the major leaks is coming from this area. I cleaned it pretty good but still cant see the fresh oil. may have to pull it and replace some seals. Thanks for any help you can give me.