Nordictrack Exp 2000i Treadmill Repair How Do You Replace The Treadmill Walking Belt?

How do you replace the treadmill Walking Belt? - nordictrack exp 2000i treadmill repair

I have a Nordic Track EXP 1000 and I have to replace the treadmill. Who knows how to do this? I take the back door and roll, but what can I do to get the front part. Any help would be appreciated.