oil changing

Want to change oil in engine & the transmission on John Deere 332. I don't have a manual. I was wanting to know what you have to do to change the transmission oil. There is supposed to be a filter, and how to get to it? Also, the engine has a filter where is it located? Do you have to do anything special after adding the oil back in the transmission? Can you supply the numbers for the transmission, engine and the air filter for the 332?

Thanks!!