March 6, 2012
My name is Tom, also known as HD116 at Home Depot's How to Community. I am here today answering a few product questions and saw yours.
If you look on the wheels at the front of your RZT50 you will see that there is a grease fitting on each. That is where the lube point is for the front. If you go to the model at homedepot.com and click on the more information tab, you can print out the entire care and use manual.
Sorry for the dealy in response and thank you for your question.
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