Hi Rosane,
I will be doing the same thing at the end of the month. I am currently in Hebei with a working visa and will be coming to KM at the end of my contract.
I went to the local PSB here in Hebei and they gave me the tourist visa form to fill in and told me I need to provide a letter signed by my boss saying that my contract is finished. In addition I need to show them I have enough funds to travel in China for one month, namely a bank receipt showing I have 18000 RMB in the bank. ( Who needs 18,000 RMB to travel in China for a month?? )
Anyway, those were the requirements in Hebei as of last week.