This is from GE instructions for that model:
1. remove two oval head phillips screws from ends of top grill and remove grill.
2. remove two flat head phillips screws behind grill which secures oven to outer case at top.
3. remove three shoulder phillips screws from front edge of bottom cover.
4. remove right hand grease filter by pushing filter rearward and lift out.
5. remove two screws behind grease filter which secures wiring cover and remove cover.
6. unplug wiring connector by squeezing to release.
7. slide out the oven assembly from the outer case. The oven is mounted like a drawer on two side rails.
Al W.
June 2009